MCQOPTIONS
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MCQOPTIONS
This section includes 760 Mcqs, each offering curated multiple-choice questions to sharpen your Grade9 knowledge and support exam preparation. Choose a topic below to get started.
| 701. |
The temperature at which solid starts to melt is called |
| A. | freezing point |
| B. | boiling point |
| C. | fusion point |
| D. | melting point |
| Answer» D. melting point | |
| 702. |
The most suitable thermometric material is |
| A. | francium |
| B. | gallium |
| C. | water |
| D. | mercury |
| Answer» E. | |
| 703. |
The evaporation from the surface of any liquid depends on |
| A. | temperature |
| B. | wind |
| C. | nature of liquid |
| D. | all of above |
| Answer» E. | |
| 704. |
The normal human body's temperature is 98.6 ° F. In the Celsius scale, it is |
| A. | 30 °C |
| B. | 37 °C |
| C. | 42 °C |
| D. | 32 °C |
| Answer» C. 42 °C | |
| 705. |
The boiling point of water is |
| A. | 323 °C |
| B. | 100 °C |
| C. | 273 °C |
| D. | 0 °C |
| Answer» B. 100 °C | |
| 706. |
Heat is also called |
| A. | energy in stress |
| B. | energy in power |
| C. | energy in transit |
| D. | energy in elasticity |
| Answer» D. energy in elasticity | |
| 707. |
The expansion of the volume of a liquid taking into consideration the expansion of the container also is called its |
| A. | zero volume expansion |
| B. | constant volume expansion |
| C. | apparent volume expansion |
| D. | real volume expansion |
| Answer» E. | |
| 708. |
The matter which has no definite shape of its own is |
| A. | liquid |
| B. | solid |
| C. | semi solid |
| D. | gas |
| Answer» B. solid | |
| 709. |
Specified heat of water is |
| A. | 4200 -1 K-1 |
| B. | 3200 -1 K-1 |
| C. | 2300 -1 K-1 |
| D. | 1250 -1 K-1 |
| Answer» B. 3200 -1 K-1 | |
| 710. |
A thermometric liquid should be a heat's |
| A. | good conductor |
| B. | bad conductor |
| C. | opponent |
| D. | absorber |
| Answer» B. bad conductor | |
| 711. |
SI unit of specific energy is |
| A. | Jkg-1 |
| B. | K-1 |
| C. | Jkg-1 K-1 |
| D. | Pa |
| Answer» D. Pa | |
| 712. |
Evaporation takes place at all the temperatures but only from the surface of the |
| A. | gas |
| B. | liquid |
| C. | plasma |
| D. | solid |
| Answer» C. plasma | |
| 713. |
The amount of heat required to raise the temperature of 1 kg mass of that substance through 1K is called its |
| A. | specific energy |
| B. | specific heat |
| C. | specific stress |
| D. | specific density |
| Answer» C. specific stress | |
| 714. |
Increase in temperature of the body is proportional to |
| A. | amount of heat absorbed |
| B. | amount of heat evolved |
| C. | density of substance |
| D. | average kinetic energy |
| Answer» B. amount of heat evolved | |
| 715. |
Gaps are left in railway tracks to compensate thermal expansion during |
| A. | rainy season |
| B. | winter |
| C. | hot season |
| D. | wind |
| Answer» D. wind | |
| 716. |
The children playing on see-saw exhibit |
| A. | translational motion |
| B. | rotatory motion |
| C. | linear motion |
| D. | vibratory motion |
| Answer» E. | |
| 717. |
A train starts from rest. It acquires a speed of 25 ms−1 after 20 s. The total distance is |
| A. | 500 m |
| B. | 31.25 m |
| C. | 300 m |
| D. | 250 m |
| Answer» E. | |
| 718. |
If a car is traveling at 8 ms−1 accelerates uniformly at 2 ms−2, its velocity after 5 seconds will be |
| A. | 20 ms−1 |
| B. | 23 ms−1 |
| C. | 25 ms−1 |
| D. | 28 ms−1 |
| Answer» C. 25 ms−1 | |
| 719. |
Motion of the Earth around the Sun is an example of |
| A. | random motion |
| B. | vibratory motion |
| C. | circular motion |
| D. | linear motion |
| Answer» D. linear motion | |
| 720. |
Rate of change of distance is |
| A. | velocity |
| B. | force |
| C. | position |
| D. | speed |
| Answer» E. | |
| 721. |
If two masses are m1 and m2, distance is ‘d’, and constant of gravitation is ‘G’, then the gravitational force for attraction will be |
| A. | F = G (m1 m2/d²) |
| B. | F = G (m1 + m2/d²) |
| C. | F = G (m1 - m2/d²) |
| D. | F = G (d²/m1 - m2) |
| Answer» B. F = G (m1 + m2/d²) | |
| 722. |
A satellite revolving very close to earth has a speed nearly |
| A. | 7 ms-1 |
| B. | 8 ms-1 |
| C. | 9 ms-1 |
| D. | 10 ms-1 |
| Answer» C. 9 ms-1 | |
| 723. |
The natural satellite of Earth is |
| A. | moon |
| B. | stars |
| C. | sun |
| D. | mars |
| Answer» B. stars | |
| 724. |
The Earth attracts a body with a force equal to its |
| A. | weight |
| B. | area |
| C. | volume |
| D. | pollution |
| Answer» B. area | |
| 725. |
The gravitational force of attraction between satellite and earth provides |
| A. | centripetal force |
| B. | centrifugal force |
| C. | resistive force |
| D. | momentum force |
| Answer» B. centrifugal force | |
| 726. |
The least count of physical balance is |
| A. | 0.001 g |
| B. | 0.0001 g |
| C. | 0.01 g |
| D. | 1 g |
| Answer» D. 1 g | |
| 727. |
The final zeroes after the decimal are |
| A. | non-significant |
| B. | significant |
| C. | worthless |
| D. | none of above |
| Answer» C. worthless | |
| 728. |
All the accurately known digits and the first doubtful digit in an expression are known as |
| A. | non-significant figures |
| B. | significant figures |
| C. | estimated figures |
| D. | crossed figures |
| Answer» C. estimated figures | |
| 729. |
Zeros used for spacing the decimal point are |
| A. | non-significant |
| B. | significant |
| C. | imaginary |
| D. | negative |
| Answer» B. significant | |
| 730. |
F zero lines of the Vernier scale are on the right side of the zero of the main scale, then zero error will be |
| A. | positive |
| B. | negative |
| C. | zero |
| D. | one |
| Answer» B. negative | |
| 731. |
In which of the following state, the molecules do not leave their position? |
| A. | solid |
| B. | plasma |
| C. | gas |
| D. | liquid |
| Answer» B. plasma | |
| 732. |
We can calculate pressure ‘P’ by the formula |
| A. | area / force |
| B. | force / area |
| C. | force + area |
| D. | force × area |
| Answer» C. force + area | |
| 733. |
Mass of the liquid cylinder is equal to its |
| A. | volume × density |
| B. | volume + density |
| C. | volume / density |
| D. | volume - density |
| Answer» B. volume + density | |
| 734. |
To push the liquid up in straw the air pressure inside it is |
| A. | increased |
| B. | decreased |
| C. | remains constant |
| D. | zero |
| Answer» C. remains constant | |
| 735. |
As compared at sea level, the atmospheric pressure on mountains is |
| A. | lower |
| B. | higher |
| C. | equal |
| D. | zero |
| Answer» B. higher | |
| 736. |
The least count of screw gauge is |
| A. | 0.1 mm |
| B. | 0.01 mm |
| C. | 0.2 mm |
| D. | 0.02 mm |
| Answer» C. 0.2 mm | |
| 737. |
The science deals with the study of non-living things are known as |
| A. | physical science |
| B. | formula science |
| C. | biological science |
| D. | fundamental science |
| Answer» B. formula science | |
| 738. |
A graduated glass cylinder marked in milliliters is called a |
| A. | screw gauge |
| B. | Vernier calipers |
| C. | measuring cylinder |
| D. | centimeter scale |
| Answer» D. centimeter scale | |
| 739. |
Smallest measurement an electronic balance can take is |
| A. | 0.01 g |
| B. | 0.001 g |
| C. | 0.0001 g |
| D. | 0.00001 g |
| Answer» C. 0.0001 g | |
| 740. |
The base quantity among the following is |
| A. | electric charge |
| B. | amount of substance |
| C. | area |
| D. | volume |
| Answer» C. area | |
| 741. |
Mass, length, speed, work, time and energy are the examples of |
| A. | velocity |
| B. | scalar |
| C. | vector |
| D. | displacement |
| Answer» C. vector | |
| 742. |
The equations of motion for bodies moving with uniform acceleration are of |
| A. | 2 types |
| B. | 4 types |
| C. | 3 types |
| D. | 5 types |
| Answer» D. 5 types | |
| 743. |
Change in velocity ⁄ time taken is equal to |
| A. | speed |
| B. | distance |
| C. | displacement |
| D. | acceleration |
| Answer» E. | |
| 744. |
If the body has equal changes in velocity in equal intervals of time however short the interval may be, then it has |
| A. | uniform velocity |
| B. | uniform speed |
| C. | distance |
| D. | uniform acceleration |
| Answer» E. | |
| 745. |
Displacement ⁄ time taken is equal to |
| A. | uniform speed |
| B. | velocity |
| C. | speed |
| D. | distance |
| Answer» C. speed | |
| 746. |
The force that produces an acceleration of 1 ms−2 in a body of the mass of 1 kg is called |
| A. | slow newton |
| B. | zero newton |
| C. | one newton |
| D. | two newton |
| Answer» D. two newton | |
| 747. |
The push and pull that moves or tend to move, stops or tends to stop the motion of a body is known as |
| A. | force |
| B. | friction |
| C. | velocity |
| D. | momentum |
| Answer» B. friction | |
| 748. |
The ratio of the force of limiting friction to normal reaction is |
| A. | zero |
| B. | constant |
| C. | greater than 1 |
| D. | less than 2 |
| Answer» C. greater than 1 | |
| 749. |
At high speeds the friction is |
| A. | increased |
| B. | decreased |
| C. | s zero |
| D. | infinite |
| Answer» C. s zero | |
| 750. |
As weight is a force so it is a |
| A. | scalar quantity |
| B. | fixed quantity |
| C. | variable quantity |
| D. | vector quantity |
| Answer» E. | |