1. Why does a runner run some distance before making a long jump?

[A] He does not slip while jumping

[B] running makes it easy to jump

[C] The inertia of his body while jumping helps him to cover more distance

[D] This makes his body warm

 Answer: [C] The speed inertia of his body helps him to travel more distance while jumping.

2. If a man is coming towards the plane mirror at a speed of 4 m / s, then at what speed will the image of man appear in the mirror?

[A] 7 m / s

[B] 5 m / s

[C] 9 m / s

[D] 8 m / s

 Answer: [D] 8 m / s

3. If a girl is swinging, another girl comes to sit near her, then what will be the effect on the swing period?

[A] will decrease

[B] first decrease, then increase

[C] will remain unchanged

[D] will increase

 Answer: [A] will decrease

4. Which units have the same quantity in all units?

[A] density

[B] specific gravity

[C] acceleration due to gravity

[D] pressure

 Answer: [B] specific gravity

5. Which of the following is not a unit of Newton-meter?

[A] force

[B] work

[C] energy

[D] Dynamic energy

 Answer: [A] force

6. If two stones of different mass are dropped together from the top of a building, what will be the result?

[A] Both stones reach the ground together

[B] depends on the composition of the stone

[C] Big stone reaches first

[D] Small stone reaches the ground first

 Answer:

7. Which mirror is located next to the driver's seat in cars, trucks and buses?

[A] convex mirror

[B] plane mirror

[C] concave mirror

[D] none

 Answer: [A] convex mirror

8. What shape does a bubble of air in water form?

[A] A flat plate

[B] a concave lens

[C] A convex lens

[D] A plane lens

 Answer: [B] a concave lens

9. Firstly, which scholar is credited with presenting information about the solar system to the world?

[A] Capler

[B] Copernicus

[C] Galileo Galillo

[D] Strabo

 Answer: [B] Copernicus

10. What is the force due to which the body moves towards the center of the earth?

[A] momentum

[B] mass

[C] gravity

[D] Impulsive force

 Answer: [C] Gravity