| 121. | Why does a cricket player catch a fast moving ball by pulling his hand back |
A. The ball may come to rest | |
B. Ball can stay in accelerated position | |
C. It may require less force | |
D. Maybe he needs to apply more force |
| 122. | is the force product |
A. Mass and velocity | |
B. Mass and acceleration | |
C. Mass and velocity | |
D. Weight and acceleration |
| 123. | When a person lands on the moon, the present in his body- |
A. Amount of substance changes | |
B. Weight decreases and volume remains unchanged | |
C. Load changes | |
D. Decrease in both volume and weight |
| 124. | If we go towards the poles from the Earth’s equator, then the value of g – |
A. Grows up | |
B. Decreases | |
C. Remains the same | |
D. Decreases up to 45° latitude |
| 125. | body weight- |
A. The snow is the same everywhere on the surface of the earth | |
B. Is maximum at the poles | |
C. Is maximum at the equator | |
D. More on hills than on plains |
| 126. | Why can a person jump higher on the surface of the Moon than on the surface of the Earth? |
A. The surface of the moon is rough | |
B. Moon has no atmosphere | |
C. The acceleration due to gravity in the Moon is less as compared to the Earth. | |
D. The Moon is cooler than the Earth. |
| 127. | The work done to hold a weight of 20 kg at a height of 1 m above the ground is- |
A. 20 july | |
B. 200 joules | |
C. 981 Joule | |
D. Zero joules |
| 128. | pushes a person’s wall but fails to dislodge it then he does |
A. No work | |
B. Negative function | |
C. Positive but not maximum function | |
D. Max work |
| 129. | A person climbing a hill leans forward because- |
A. Can run fast | |
B. Reduce the chance of slipping | |
C. For power conservation | |
D. To increase stability |
| 130. | The historical Leaning Tower of Pisa does not fall while being tilted because- |
A. The vertical line passing through its center of gravity passes through the base. | |
B. The vertical line passing through its center of gravity does not pass through the base. | |
C. There is divine influence behind it | |
D. It’s a wonder |