Physics – Class 11 Practice Test 3

1. In the following figure, what will happen to the ball hanging from the roof of the car if the car suddenly moves towards left (direction shown by arrow)?

2. Power is ______

3. What is the force applied on a body with 5 kg of mass and an acceleration of 7 m/s²?

4. Which one of the following is not an example of the third law of motion?

5. The energy possessed by a body by the virtue of its position is called ______

6. A ball is moving with a constant velocity. After some time, it collides with a wall. Which one of the following remains conserved except momentum?

7. A body having 7 kg of mass moves with a velocity of 20 m/s covers a vertical height of 8.75 m. What is the work done by the moving force in Joules? Take g = 10 m/s².

8. Two bodies moving with constant velocities collide with each other. Which of the following quantities remain conserved?

9. A ball tied at the end of a perfect string tied tightly (assume fixed) to a wooden bar at the other end is rotating with constant angular velocity. Its tangential velocity will _______

10. If a body returns to its original state of equilibrium after giving it a small displacement, the equilibrium is known as ______