| 1 |
A bullet shot straight up, return to its starting point in 10 sec. Its initial speed was |
- A. 9.8 ms-1
- B. 24.5 ms-1
- C. 49 ms-1
- D. 98 ms-1
|
| 2 |
If the slope of the velocity time graph remain constant then body is moving with. |
- A. Uniform velocity
- B. Negative variable acceleration
- C. Variable acceleration
- D. Uniform acceleration
|
| 3 |
Food rich in proteins is: |
- A. potato
- B. grapes
- C. vegetables
- D. bread
|
| 4 |
In the absence of external force, the change in momentum is. |
- A. Zero
- B. Constant
- C. Decreasing
- D. Increasing
|
| 5 |
The mass of a body is quantitative measure of its |
- A. Motion
- B. Inertia
- C. Weight
- D. All of these
|
| 6 |
An immediate source of energy for our body is: |
- A. mango
- B. <span style="color: rgb(32, 33, 36); font-family: arial, sans-serif; font-size: 32px;">Glucose</span>
- C. mushroom
- D. meat
|
| 7 |
A mass of 1 kg is freely falling. The force of gravity is. |
- A. 1 N
- B. 9.8 N
- C. 0.5 N
- D. Zero
|
| 8 |
A ball is thrown up with 20 ms-1 at an angle of 60 <sup>o</sup>with x-axis , the velocity of the ball at the top position is. |
- A. 0 ms-1
- B. 10 ms-1
- C. 20 ms-1
- D. 16 ms-1
|
| 9 |
Total change in momentum of an isolated system is |
- A. Always (+) ve
- B. Always (-) ve
- C. Has maximum value
- D. Zero
|
| 10 |
When the projectile reaches the highest point of trajectory, the vertical component of velocity becomes. |
- A. Small
- B. Zero
- C. Maximum
- D. Vi cos
|