1. What is the SI unit of force?
2. Which instrument is used to measure force?
3. What is the direction of pressure in liquids?
4. What happens to pressure when force is increased on a given area?
5. Which type of force is exerted by a magnet?
6. What is required to change the state of motion of an object?
7. What is pressure defined as?
8. In which unit is pressure measured?
9. Which type of force is applied when we stretch a rubber band?
10. Which of the following is a contact force?
11. Which type of force is responsible for holding planets in orbit?
12. What happens to pressure when the area of contact increases while keeping force constant?
13. Why do sharp knives cut better than blunt ones?
14. Which of the following is a non-contact force?
15. What force opposes motion between two surfaces?
16. Which force acts between electrically charged bodies?
17. Why are heavy vehicles provided with wide tires?
18. What is the direction of pressure exerted by liquids?
19. Which of the following can change the shape of an object?
20. What causes a moving object to stop when no force is applied?
21. What force does a spring apply when stretched?
22. What happens when forces on an object are balanced?
23. Why do we wear shoes with rubber soles?
24. What is the force applied by liquids in a container called?
25. In which unit is pressure measured in the SI system?
26. What causes atmospheric pressure?
27. Which force helps in walking?
28. Why do porters place a cloth on their head while carrying load?
29. How does a suction cup stick to a surface?
30. Why is it difficult to walk on ice?
31. What is the net force if two equal forces act in opposite directions?
32. Which property of force changes the motion of a body?
33. What kind of force is applied when blowing air into a balloon?
34. Which gas exerts atmospheric pressure?
35. What is the effect of applying force on a stationary object?
36. In what direction does pressure act on the walls of a balloon?
37. What happens when you press a rubber ball?
38. What is the effect of force on a moving object?
39. What is thrust?
40. Which unit is equivalent to one Pascal?