Force of friction always acts on moving objects and its direction shall be ____

Perpendicular to the direction of motion

Opposite to the direction of motion

Volume / force on which it acts

Force / volume on which it acts

An example of a non- contact force is

Force exerted by us to lift a bucket

Which of the following is proper example(s) to explain that force on an object may change its shape

A ball of dough rolled into chapati

Pressing a rubber ball kept on table

If In a tug-o-war, two teams pulling a rope does not move towards any team, it implies that

No force is applied in any direction

Equal force is being applied in the same direction

Equal Force is being applied in opposite direction

No force is applied in any direction

A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus

Does not change the direction but speed only

Changes the direction & speed of the ball

Does not change the direction but speed only

Does not change the speed but direction only

Does not change either direction or speed

If two forces act in the opposite directions on an object, the net force acting on it is the

Multiplication of the two forces

difference between the two forces

Multiplication of the two forces

The net force is zero when the two forces applied on an object are in:

The opposite directions and are of different in magnitude.

The opposite directions and are of equal in magnitude.

In order to increase the loudness of a sound we have to:

Decrease its amplitude of vibration.

Decrease its frequency of vibration.

Increase its frequency of vibration.

Decrease its amplitude of vibration.

Drag force is applied by which of the following and in which direction?

Fluids, in the direction opposite to the direction of motion of the object.

Solids, in the direction or opposite to the direction of motion.

Liquids, in the direction of motion of the object only.

Fluids, in the direction opposite to the direction of motion of the object.

Which one of the following is not a bone of ear?

That pulls down all objects towards earth

Two boxes filled with books, one is of 2kg and other is of 4kg are kept on a cemented floor. Which one of them would require a larger force to move it from the rest position?

Box with lighter weight requires more force.

Box with heavier weight requires more force.

Box with lighter weight requires more force.

Friction depends on the:

Forces with which two surfaces are pressed together.

What will happen if there is a vacuum just above one limb of the U-tube half filled with liquid as shown in figure?

The liquid will move down in the limb where a vacuum just above and rise up the other.

The liquid will rise up in the limb where a vacuum just above and move down the other.

The liquid will move down in the limb where a vacuum just above and rise up the other.

The liquid will rise up in both the limbs of U-tube.

As we go higher up on mountains, our ears pop because

Air pressure around our ears increases

The pressure exerted by the blood near ears increases

\[\text{N/}{{\text{m}}^{\text{2}}}\]

\[\text{N}\text{.}{{\text{m}}^{\text{2}}}\]

Directions: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: The acceleration produced by a force in the motion of a body depends only up on its mass. Reason: Larger is the mass of the body, lesser will be the acceleration produced.

Both A and R are true and but R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and but R is not the correct explanation of A.

Stones A, B, C and D of same masses are thrown on a wall. Acceleration produced in them are \[2m/se{{c}^{2}},\text{ }3\text{ }m/se{{c}^{2}},\text{ }5\text{ }m/se{{c}^{2}},\text{ }4\text{ }m/se{{c}^{2}}\] respectively. Arrange the force exerted by the stones in descending order.

\[{{f}_{A}}>{{f}_{B}}>{{f}_{C}}>{{f}_{D}}\]

\[{{f}_{D}}>{{f}_{C}}>{{f}_{B}}>{{f}_{A}}\]

there is no frictional force between the box and the ground

\[{{f}_{C}}>{{f}_{D}}>{{f}_{B}}>{{f}_{A}}\]

Container and , contain pure water but in different quantity. If both of the containers have same shape, same size and kept at same surface but height from the ground \[{{h}_{1}}>{{h}_{2}}.\] Which container will have more pressure?

Light energy \[\to \] Chemical energy

DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement-1: Atmospheric pressure increases with increase in depth of sea. Statement-2: Pressure is directly proportional to depth/height.

Statement (1) is correct while statement (2) is incorrect.

Statement (2) is correct while statement (1) is incorrect.

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column I Column II A. Acceleration (p) Contact force B. Pressure (q) No atmospheric pressure C. Space (r) Force/mass D. Muscular force (s) Barometer

\[A\to (q);B\to (p);C\to (r);D\to (s)\]

\[A\to (r);B\to (s);C\to (q);D\to (p)\]

\[A\to (s);B\to (r);C\to (q);D\to (p)\]

Identify the application of low pressure in everyday life.

Cutting of an apple with a sharp knife

Chemical, Kinetic, Potential, Heat, Sound

Three identical vessels A, B and C contain same quantity of liquid. In each vessel, blocks with different densities but same masses are placed as shown in figure. If \[{{F}_{A}},{{F}_{B}}\] and \[{{F}_{C}}\] are the total forces acting on the base of vessels A, B and C respectively, then

\[{{F}_{A}}={{F}_{B}}={{F}_{C}}\]

\[{{F}_{A}}>{{F}_{B}}>{{F}_{C}}\]

A block of mass 10 kg is suspended through two light spring balances as shown in figure. Then

The reading may be anything but their sum will be 10 kg.

1 newton = _______ dynes.

The same directions and are same in magnitude.

A fluid is a substance that

Increase its amplitude of vibration.

has no definite volume and shape

Increase its amplitude of vibration.

The below figures show the forces required to move a 100 g object over different surfaces. The friction is greatest at

Gases, in the direction of motion of the object only.

Match the column I with column II and select the correct option from the codes given below. Column I Column II (a) A girl pulling the leash of a running dog (i) Impact force can make stationary object to move by an another moving object. (b) A driver turning the steering wheel of a car (ii) Gravity acts upon an object (c) When you hit a nail with a hammer (iii) Force can make an object go slower (d) A ball released from top of a tower (iv) Force can change the direction of a moving object.

(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

A force of 300 N, while acting on an area A, produces a pressure of 1500 Pa. What is the magnitude of A in \[c{{m}^{2}}\]?

Both the boxes require same force.

Weight of an object depends on

The liquid will move down in both the limbs of U-tube.

The acceleration due to gravity is \[~9.8\text{ }m/{{s}^{2}}\]

Air pressure around our ears decreases

49 + Mcqs in Force and Pressure in Science Page 1 McqOptions

1.	Force of friction always acts on moving objects and its direction shall be ____
A.	On any direction
B.	Along the direction of motion
C.	Perpendicular to the direction of motion
D.	Opposite to the direction of motion
Answer» E.

Discussion

2.	Pressure =
A.	Area / force on which it acts
B.	force / area on which it acts
C.	Volume / force on which it acts
D.	Force / volume on which it acts
Answer» C. Volume / force on which it acts

Discussion

3.	An example of a non- contact force is
A.	Force exerted by us to lift a bucket
B.	Push a stationary car
C.	Force exerted by magnet
D.	Hit a cricket ball for a 6 run
Answer» D. Hit a cricket ball for a 6 run

Discussion

4.	Which of the following is proper example(s) to explain that force on an object may change its shape
A.	A ball of dough rolled into chapati
B.	Pressing a rubber ball kept on table
C.	Making model using clay
D.	All of the above
Answer» E.

Discussion

5.	A ball rolling on the ground slows down and finally stops. This is because of
A.	Force
B.	Less force applied
C.	Friction
D.	None of the above
Answer» D. None of the above

Discussion

6.	Gravity is
A.	Repulsive
B.	Attraction + Repulsive force
C.	Attractive force
D.	Not a force
Answer» D. Not a force

Discussion

7.	If In a tug-o-war, two teams pulling a rope does not move towards any team, it implies that
A.	Equal force is being applied in the same direction
B.	Equal Force is being applied in opposite direction
C.	No force is applied in any direction
D.	Cannot be explained
Answer» C. No force is applied in any direction

Discussion

8.	A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus
A.	Changes the direction & speed of the ball
B.	Does not change the direction but speed only
C.	Does not change the speed but direction only
D.	Does not change either direction or speed
Answer» B. Does not change the direction but speed only

Discussion

9.	If two forces act in the opposite directions on an object, the net force acting on it is the
A.	Sum of the two forces
B.	difference between the two forces
C.	Multiplication of the two forces
D.	Division of the two forces
Answer» C. Multiplication of the two forces

Discussion

10.	The net force is zero when the two forces applied on an object are in:
A.	The same directions
B.	The opposite directions and are of different in magnitude.
C.	mechanical force.
D.	The opposite directions and are of equal in magnitude.
E.	None of these
Answer» E. None of these

Discussion

11.	In order to increase the loudness of a sound we have to:
A.	Decrease its frequency of vibration.
B.	Increase its frequency of vibration.
C.	mechanical force.
D.	Decrease its amplitude of vibration.
E.	None of these
Answer» D. Decrease its amplitude of vibration.

Discussion

12.	Drag force is applied by which of the following and in which direction?
A.	Solids, in the direction or opposite to the direction of motion.
B.	Liquids, in the direction of motion of the object only.
C.	X Y c B
D.	Fluids, in the direction opposite to the direction of motion of the object.
E.	None of these
Answer» D. Fluids, in the direction opposite to the direction of motion of the object.

Discussion

13.	Which one of the following is not a bone of ear?
A.	Anvil
B.	Hammer
C.	That pulls down all objects towards earth
D.	Stirrup
E.	None of these
Answer» C. That pulls down all objects towards earth

Discussion

14.	When a pencil is thrown upwards, then its speed goes on decreasing, because of:
A.	Electrostatic force
B.	Frictional force
C.	Kinetic energy
D.	Gravitational force
E.	None of these
Answer» C. Kinetic energy

Discussion

15.	Ball bearing is used between the hub of wheel and axle to ___ the friction.
A.	Increase
B.	f Reduce
C.	Solar cooker
D.	Maximize
E.	None of these
Answer» D. Maximize

Discussion

16.	Two boxes filled with books, one is of 2kg and other is of 4kg are kept on a cemented floor. Which one of them would require a larger force to move it from the rest position?
A.	Box with heavier weight requires more force.
B.	Box with lighter weight requires more force.
C.	Muscular
D.	Either [a] or [b]
E.	None of these
Answer» B. Box with lighter weight requires more force.

Discussion

17.	P and Q are two forces applied on object 0 in the same direction, then the resultant force acting on the object is equal to:
A.	\[P-Q\]
B.	Zero
C.	Only II and III
D.	\[P\times Q\]
E.	None of these
Answer» D. \[P\times Q\]

Discussion

18.	Pressure at the surface of the pond is _____ the pressure at the bottom of the pond.
A.	Same as
B.	Less than
C.	pin has energy
D.	Slightly greater than
E.	None of these
Answer» C. pin has energy

Discussion

19.	Usually length of vocal cords of men is ____ women.
A.	Less than
B.	Greater than
C.	Chemical energy
D.	Slightly less than
E.	None of these
Answer» C. Chemical energy

Discussion

20.	Friction depends on the:
A.	Nature of two surfaces.
B.	Forces with which two surfaces are pressed together.
C.	Guitar
D.	Either [a] or [b]
E.	None of these
Answer» D. Either [a] or [b]

Discussion

21.	What will happen if there is a vacuum just above one limb of the U-tube half filled with liquid as shown in figure?
A.	The liquid will rise up in the limb where a vacuum just above and move down the other.
B.	The liquid will move down in the limb where a vacuum just above and rise up the other.
C.	Atomic energy
D.	The liquid will rise up in both the limbs of U-tube.
Answer» B. The liquid will move down in the limb where a vacuum just above and rise up the other.

Discussion

22.	As we go higher up on mountains, our ears pop because
A.	Air pressure around our ears increases
B.	The pressure exerted by the blood near ears increases
C.	Pulley
D.	None of these
Answer» D. None of these

Discussion

23.	Pascal is equal to:
A.	\[\text{N/}{{\text{m}}^{\text{2}}}\]
B.	\[\text{N/m}\times \text{s}\]
C.	a push or a pull.
D.	\[\text{N}\text{.}{{\text{m}}^{\text{2}}}\]
Answer» B. \[\text{N/m}\times \text{s}\]

Discussion

24.	Directions: The questions in this segment consists of two statements, one labelled as ?Assertion A? and the other labelled as ?Reason R?. You are to examine these two statements carefully and decide if the Assertion A and Reasons R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion: The acceleration produced by a force in the motion of a body depends only up on its mass. Reason: Larger is the mass of the body, lesser will be the acceleration produced.
A.	Both A and R are true and R is the correct explanation of A.
B.	Both A and R are true and but R is not the correct explanation of A.
C.	push a door.
D.	A is false but R is true.
Answer» B. Both A and R are true and but R is not the correct explanation of A.

Discussion

25.	Stones A, B, C and D of same masses are thrown on a wall. Acceleration produced in them are \[2m/se{{c}^{2}},\text{ }3\text{ }m/se{{c}^{2}},\text{ }5\text{ }m/se{{c}^{2}},\text{ }4\text{ }m/se{{c}^{2}}\] respectively. Arrange the force exerted by the stones in descending order.
A.	\[{{f}_{A}}>{{f}_{B}}>{{f}_{C}}>{{f}_{D}}\]
B.	\[{{f}_{D}}>{{f}_{C}}>{{f}_{B}}>{{f}_{A}}\]
C.	there is no frictional force between the box and the ground
D.	\[{{f}_{C}}>{{f}_{D}}>{{f}_{B}}>{{f}_{A}}\]
Answer» E.

Discussion

26.	What is the surface area of table top if a force of120 N exerted on it produces a pressure of20 Pa?
A.	2400m2
B.	60m2
C.	Wheel and axle
D.	240m2
Answer» D. 240m2

Discussion

27.	What force would be required to produce an acceleration of 4 m/s2 in a moving wall of mass6kg?
A.	1.2 N
B.	1.5 N
C.	Pulley
D.	24 N
Answer» E.

Discussion

28.	The pressure of the water at the bottom of the pond is _______ at the surface of the pond.
A.	lower than
B.	same
C.	sound energy.
D.	either lower or higher
Answer» D. either lower or higher

Discussion

29.	Container and , contain pure water but in different quantity. If both of the containers have same shape, same size and kept at same surface but height from the ground \[{{h}_{1}}>{{h}_{2}}.\] Which container will have more pressure?
A.	Same in A and B
B.	Container B
C.	Light energy \[\to \] Chemical energy
D.	None of these
Answer» D. None of these

Discussion

30.	DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement-1: Atmospheric pressure increases with increase in depth of sea. Statement-2: Pressure is directly proportional to depth/height.
A.	Statement (1) is correct while statement (2) is incorrect.
B.	Statement (2) is correct while statement (1) is incorrect.
C.	Water energy
D.	Both statements are incorrect.
Answer» D. Both statements are incorrect.

Discussion

31.	Look at the block placed on the table given below: Which of the following physical quantities is not the same when this block is kept over a table with its different faces touching the table?
A.	Pressure
B.	Volume
C.	Heat energy
D.	Mass
Answer» B. Volume

Discussion

32.	Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column I Column II A. Acceleration (p) Contact force B. Pressure (q) No atmospheric pressure C. Space (r) Force/mass D. Muscular force (s) Barometer
A.	\[A\to (q);B\to (p);C\to (r);D\to (s)\]
B.	\[A\to (r);B\to (s);C\to (q);D\to (p)\]
C.	(I-C), (II-A), (III-B), (IV-D)
D.	\[A\to (s);B\to (r);C\to (q);D\to (p)\]
Answer» C. (I-C), (II-A), (III-B), (IV-D)

Discussion

33.	How much pressure will be applied on a body. If a force of 4 N is applied on its unit surface area. [Hint: Area = 1 m2]
A.	0.25 Pa
B.	2 Pa
C.	The weight of spring balance
D.	4 Pa
Answer» E.

Discussion

34.	Identify the application of low pressure in everyday life.
A.	Wide tyres of a heavy vehicle
B.	Cutting of an apple with a sharp knife
C.	Chemical, Kinetic, Potential, Heat, Sound
D.	All of the above
Answer» B. Cutting of an apple with a sharp knife

Discussion

35.	Three identical vessels A, B and C contain same quantity of liquid. In each vessel, blocks with different densities but same masses are placed as shown in figure. If \[{{F}_{A}},{{F}_{B}}\] and \[{{F}_{C}}\] are the total forces acting on the base of vessels A, B and C respectively, then
A.	\[{{F}_{A}}={{F}_{B}}={{F}_{C}}\]
B.	\[{{F}_{A}}<{{F}_{B}}<{{F}_{C}}\]
C.	1 and 3 only
D.	\[{{F}_{A}}>{{F}_{B}}>{{F}_{C}}\]
Answer» B. \[{{F}_{A}}<{{F}_{B}}<{{F}_{C}}\]

Discussion

36.	A block of mass 10 kg is suspended through two light spring balances as shown in figure. Then
A.	Both the scales will read 10kg
B.	Both the scales will read 5kg
C.	Frictional force
D.	The reading may be anything but their sum will be 10 kg.
Answer» B. Both the scales will read 5kg

Discussion

37.	1 newton = _______ dynes.
A.	103
B.	104
C.	The same directions and are same in magnitude.
D.	106
Answer» D. 106

Discussion

38.	A fluid is a substance that
A.	has no definite shape
B.	has no definite volume and shape
C.	Increase its amplitude of vibration.
D.	is a liquid
Answer» C. Increase its amplitude of vibration.

Discussion

39.	The below figures show the forces required to move a 100 g object over different surfaces. The friction is greatest at
A.	Surface P
B.	Surface Q
C.	Gases, in the direction of motion of the object only.
D.	Surface S
Answer» B. Surface Q

Discussion

40.	Match the column I with column II and select the correct option from the codes given below. Column I Column II (a) A girl pulling the leash of a running dog (i) Impact force can make stationary object to move by an another moving object. (b) A driver turning the steering wheel of a car (ii) Gravity acts upon an object (c) When you hit a nail with a hammer (iii) Force can make an object go slower (d) A ball released from top of a tower (iv) Force can change the direction of a moving object.
A.	(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
B.	(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
C.	Humerus
D.	(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
Answer» C. Humerus

Discussion

41.	Which of the following statements are true? (i) An object will continue moving uniformly until the resultant force on it is zero. (ii) The bodies do not change their state of rest or motion unless acted upon by an unbalanced external force. (iii) If a body is at rest on the surface of the Earth then the net downward force exerted by the Earth and net upward force exerted on the body are not equal to each other.
A.	Only (i) and (ii)
B.	Only (ii) and (iii)
C.	Muscular force
D.	All (i), (ii) and (iii)
Answer» B. Only (ii) and (iii)

Discussion

42.	A force of 500 N acts on an area of \[0.05\text{ }{{m}^{2}}\]. What will be the pressure in rascals?
A.	\[{{10}^{4}}Pa\]
B.	\[{{10}^{5}}Pa\]
C.	Rub
D.	\[{{10}^{7}}Pa\]
Answer» B. \[{{10}^{5}}Pa\]

Discussion

43.	A force of 300 N, while acting on an area A, produces a pressure of 1500 Pa. What is the magnitude of A in \[c{{m}^{2}}\]?
A.	\[1000\text{ }c{{m}^{2}}\]
B.	\[3000\text{ }c{{m}^{2}}\]
C.	Both the boxes require same force.
D.	\[2000\text{ }c{{m}^{2}}\]
Answer» E.

Discussion

44.	Iron filings get attracted toward a bar magnet because of the presence of
A.	gravitational force
B.	frictional force
C.	\[P+Q\]
D.	electric force
Answer» D. electric force

Discussion

45.	A trolley is moving at a constant speed of 2 m/s. Cole and Paul start pushing the trolley at the same time from opposite directions, as shown in the figure. Both of them are applying a force of 15 N on the trolley.The speed of the trolley will
A.	remain the same
B.	become zero
C.	Greater than
D.	increase
Answer» B. become zero

Discussion

46.	If the mercury in the barometer is replaced by water, what will be the resulting height of the water column? Density of water \[=1000\text{ }kg{{m}^{-3}}\]density of mercury \[=13600\text{ }kg{{m}^{-3}}\].
A.	0.76 m
B.	10 m
C.	Same as
D.	11 m
Answer» D. 11 m

Discussion

47.	A tin container is shown in the given figure. There are four circular openings of equal diameter in the side wall of the container. The openings are labelled as I, II, III, and IV. These openings allow the water present in the container to come out through them. The water coming out through opening ___i___ will fall at the nearest distance from the container, while that coming out through opening ___ii___ will fall at the farthest distance from the container.
A.	\[i-I,ii-IV\]
B.	\[i-II,\text{ }ii-III\]
C.	Both [a] and [b]
D.	\[i-III,ii-II\]
Answer» B. \[i-II,\text{ }ii-III\]

Discussion

48.	Weight of an object depends on
A.	temperature of the place
B.	atmosphere of the place
C.	The liquid will move down in both the limbs of U-tube.
D.	none of these
Answer» D. none of these

Discussion

49.	The acceleration due to gravity is \[~9.8\text{ }m/{{s}^{2}}\]
A.	Much above the earths surface
B.	Near the earths surface
C.	Air pressure around our ears decreases
D.	At the centre of the earth
Answer» C. Air pressure around our ears decreases

Discussion

Explore topic-wise MCQs in Science.

Force of friction always acts on moving objects and its direction shall be ____

Pressure =

An example of a non- contact force is

Which of the following is proper example(s) to explain that force on an object may change its shape

A ball rolling on the ground slows down and finally stops. This is because of

Gravity is

If In a tug-o-war, two teams pulling a rope does not move towards any team, it implies that

A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus

If two forces act in the opposite directions on an object, the net force acting on it is the

The net force is zero when the two forces applied on an object are in:

In order to increase the loudness of a sound we have to:

Drag force is applied by which of the following and in which direction?

Which one of the following is not a bone of ear?

When a pencil is thrown upwards, then its speed goes on decreasing, because of:

Ball bearing is used between the hub of wheel and axle to ___ the friction.

Two boxes filled with books, one is of 2kg and other is of 4kg are kept on a cemented floor. Which one of them would require a larger force to move it from the rest position?

P and Q are two forces applied on object 0 in the same direction, then the resultant force acting on the object is equal to:

Pressure at the surface of the pond is _____ the pressure at the bottom of the pond.

Usually length of vocal cords of men is ____ women.

Friction depends on the:

What will happen if there is a vacuum just above one limb of the U-tube half filled with liquid as shown in figure?

As we go higher up on mountains, our ears pop because

Pascal is equal to:

Stones A, B, C and D of same masses are thrown on a wall. Acceleration produced in them are \[2m/se{{c}^{2}},\text{ }3\text{ }m/se{{c}^{2}},\text{ }5\text{ }m/se{{c}^{2}},\text{ }4\text{ }m/se{{c}^{2}}\] respectively. Arrange the force exerted by the stones in descending order.

What is the surface area of table top if a force of120 N exerted on it produces a pressure of20 Pa?

What force would be required to produce an acceleration of 4 m/s2 in a moving wall of mass6kg?

The pressure of the water at the bottom of the pond is _______ at the surface of the pond.

Container and , contain pure water but in different quantity. If both of the containers have same shape, same size and kept at same surface but height from the ground \[{{h}_{1}}>{{h}_{2}}.\] Which container will have more pressure?

DIRECTIONS: Read the following two statements carefully and choose the correct options. Statement-1: Atmospheric pressure increases with increase in depth of sea. Statement-2: Pressure is directly proportional to depth/height.

Look at the block placed on the table given below: Which of the following physical quantities is not the same when this block is kept over a table with its different faces touching the table?

Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column I Column II A. Acceleration (p) Contact force B. Pressure (q) No atmospheric pressure C. Space (r) Force/mass D. Muscular force (s) Barometer

How much pressure will be applied on a body. If a force of 4 N is applied on its unit surface area. [Hint: Area = 1 m2]

Identify the application of low pressure in everyday life.

Three identical vessels A, B and C contain same quantity of liquid. In each vessel, blocks with different densities but same masses are placed as shown in figure. If \[{{F}_{A}},{{F}_{B}}\] and \[{{F}_{C}}\] are the total forces acting on the base of vessels A, B and C respectively, then

A block of mass 10 kg is suspended through two light spring balances as shown in figure. Then

1 newton = _______ dynes.

A fluid is a substance that

The below figures show the forces required to move a 100 g object over different surfaces. The friction is greatest at

A force of 500 N acts on an area of \[0.05\text{ }{{m}^{2}}\]. What will be the pressure in rascals?

A force of 300 N, while acting on an area A, produces a pressure of 1500 Pa. What is the magnitude of A in \[c{{m}^{2}}\]?

Iron filings get attracted toward a bar magnet because of the presence of

A trolley is moving at a constant speed of 2 m/s. Cole and Paul start pushing the trolley at the same time from opposite directions, as shown in the figure. Both of them are applying a force of 15 N on the trolley.The speed of the trolley will

If the mercury in the barometer is replaced by water, what will be the resulting height of the water column? Density of water \[=1000\text{ }kg{{m}^{-3}}\]density of mercury \[=13600\text{ }kg{{m}^{-3}}\].

Weight of an object depends on

The acceleration due to gravity is \[~9.8\text{ }m/{{s}^{2}}\]