A ball dropped from a spacecraft is revolving around the earth at a height of 120km. What will happen to the ball?

It will move with the same speed, tangentially to the spacecraft

It will fall down to the earth gradually

It will go very far in the space

It will continue to move with the same speed along the original orbit of the spacecraft

It will move with the same speed, tangentially to the spacecraft

Statement 1 If a pendulum falls freely, then its time period is infinite.Statement 2 Free falling body has acceleration equal to g.

Statement 1 is true but statement 2 is false

Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1

Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1

Statement 1 is true but statement 2 is false

Both statement 1 and 2 are false

Statement 1 The earth is slowing down and as a result, the moon is coming nearer to it.Statement 2 The angular momentum of the system is not conserved.

Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1

Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1

Statement 1 is true but statement 2 is false

Both statement 1 and 2 are false

Explore topic-wise MCQs in Engineering Physics.

This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.

1.	What is the ration of the force of attraction between two bodies kept in the air and the same distance apart in the water?
A.	2:1
B.	1:2
C.	1:1
D.	2:4
Answer» D. 2:4

Discussion

2.	G is called gravitation constant.
A.	True
B.	False
Answer» B. False

Discussion

3.	A ball dropped from a spacecraft is revolving around the earth at a height of 120km. What will happen to the ball?
A.	It will fall down to the earth gradually
B.	It will go very far in the space
C.	It will continue to move with the same speed along the original orbit of the spacecraft
D.	It will move with the same speed, tangentially to the spacecraft
Answer» D. It will move with the same speed, tangentially to the spacecraft

Discussion

4.	Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in its size. If the acceleration due to gravity on the surface of the earth is g and that on the surface of the new planet g is?
A.	g<sup> </sup>=g/9
B.	g<sup> </sup>=27g
C.	g<sup> </sup>=9g
D.	g<sup> </sup>=3g
Answer» E.

Discussion

5.	Statement 1 If a pendulum falls freely, then its time period is infinite. Statement 2 Free falling body has acceleration equal to g.
A.	Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1
B.	Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1
C.	Statement 1 is true but statement 2 is false
D.	Both statement 1 and 2 are false
Answer» C. Statement 1 is true but statement 2 is false

Discussion

6.	Statement 1 The earth is slowing down and as a result, the moon is coming nearer to it. Statement 2 The angular momentum of the system is not conserved.
A.	Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1
B.	Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1
C.	Statement 1 is true but statement 2 is false
D.	Both statement 1 and 2 are false
Answer» E.

Discussion

7.	If the kinetic energy of the satellite revolving in an orbit close to the earth s surface happens to be doubled, what happens to the satellite?
A.	It revolves faster
B.	It revolves slower
C.	It remains unaltered
D.	It escapes
Answer» E.

Discussion

8.	Calculate the force of attraction between two balls each of mass 1kg when their centres are 10cm apart. The value of gravitational constant G = 6.67 10^-11 Nm² kg^(-2).
A.	6.67 10<sup>-11</sup>N
B.	6.67 10<sup>-10</sup>N
C.	6.67N
D.	6.67 10<sup>10</sup> N
Answer» C. 6.67N

Discussion

Explore topic-wise MCQs in Engineering Physics.

What is the ration of the force of attraction between two bodies kept in the air and the same distance apart in the water?

G is called gravitation constant.

A ball dropped from a spacecraft is revolving around the earth at a height of 120km. What will happen to the ball?

Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in its size. If the acceleration due to gravity on the surface of the earth is g and that on the surface of the new planet g is?

Statement 1 If a pendulum falls freely, then its time period is infinite.Statement 2 Free falling body has acceleration equal to g.

Statement 1 The earth is slowing down and as a result, the moon is coming nearer to it.Statement 2 The angular momentum of the system is not conserved.

If the kinetic energy of the satellite revolving in an orbit close to the earth s surface happens to be doubled, what happens to the satellite?

Calculate the force of attraction between two balls each of mass 1kg when their centres are 10cm apart. The value of gravitational constant G = 6.67 10-11 Nm2 kg(-2).

Statement 1 If a pendulum falls freely, then its time period is infinite.
Statement 2 Free falling body has acceleration equal to g.

Statement 1 The earth is slowing down and as a result, the moon is coming nearer to it.
Statement 2 The angular momentum of the system is not conserved.

Calculate the force of attraction between two balls each of mass 1kg when their centres are 10cm apart. The value of gravitational constant G = 6.67 10^-11 Nm² kg^(-2).