Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 10 (25 MCQs)

Quiz Instructions

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1. If Hank is near hole 9, he will need to use a ..... amount of force so that the ball doesn't roll past hole 9.
2. A 3, 000 kg truck moving at +10 m/s hits a 1, 000 kg parked car which moves off at +15 m/s. What is the velocity of the truck?
3. COMPREHENSION:You are to adjust to a new environment but you want to resist the changes because you are stable and steady in your position. What law is being exhibited by this situation?
4. Which law best describes the International Space Station continually orbiting the earth?
5. Which an example of the 1st law of motion?
6. A car, initially at rest reaches a velocity of 50 km/hr in 10 seconds, this is an example of
7. COMPREHENSION:Swimming is possible by 'slicing' the water and pushing it with your hands. What law of motion can explain this occurrence?
8. A ball rolling across the floor with friction acting in the opposite direction will affect its motion. What is this an example of?
9. It is the study of forces that cause objects and systems to move.
10. The swimmer moves her hand down and to the left and her body goes forward to the right.
11. An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example best described by
12. F=MA Going down a hill a 12 kg sled has a force of 36 N. What is it's acceleration?
13. N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
14. Max. permissible speed on a banked road is:-
15. A pitched baseball goes faster than one that is gently thrown.
16. A hiker's velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
17. A machine gun fires a bullet of mass 40 g with a velocity of 1200 ms$^{-1}$. The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most?
18. What is the unit of force in the International System of Units (SI)?
19. Which of the following is an example of Newton's First Law?
20. A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion?
21. On a stationary sail boat, air is blown from a fan attached to the boat. The boat
22. When a bus starts suddenly, the passengers are pushed back. This is an example of which of the following?
23. When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that Bobby's dad throws go farther and faster than his.
24. If the change of momentum of an object is 50kg m/s, we can say the impulse is equal to:
25. The gravitational force between two objects is most affected by their