# Class 4 Science MCQs Chapter 6

## Force and Motion

### Chapter No. 6 Test No. 1

1. The act of pushing or pulling a body is called _______ ⓐ Gravity ⓑ Friction ⓒ Lever ⓓ Force
Force
2. ________ is used to move or stop the body. ⓐ Gravity ⓑ Friction ⓒ Lever ⓓ Force
Force
3. ________ increases or decreases the speed of a body. ⓐ Gravity ⓑ Friction ⓒ Lever ⓓ Force
Force
4. ________ can change the direction of motion. ⓐ Gravity ⓑ Friction ⓒ Lever ⓓ Force
Force
5. A force can be explained as: ⓐ Push or pull of a body ⓑ Move or stop the body ⓒ Change the direction ⓓ All of these
All of these
6. A force acting on a body ______ its shape by compressing it. ⓐ Can ⓑ Cannot ⓒ Lever ⓓ None of these
can
7. ______are forces. ⓐ Push ⓑ Pull ⓒ Both a & b ⓓ None of these
Both a & b
8. The body _______its position during movement. ⓐ Changes ⓑ Does not ⓒ Just move up ⓓ None of these
Changes
9. The ________ moves up and down. ⓐ See – saw ⓑ Swing ⓒ Fan ⓓ None of these
See – saw
10. The________ moves in a circle. ⓐ See – saw ⓑ Swing ⓒ Fan ⓓ None of these
Fan
11. The ________ moves back and forth. ⓐ See – saw ⓑ Swing ⓒ Fan ⓓ None of these
Swing
12. The process in which a body changes its position is called_________. ⓐ Rest ⓑ Motion ⓒ Force ⓓ None of these
Motion
13. When the earth pulls the bodies towards itself with a specific force is called ________ of earth ⓐ Friction ⓑ Speed ⓒ Gravity ⓓ None of these
Gravity
14. A ball thrown upward return to the ground after reaching a certain height is due to _______ ⓐ Friction ⓑ Speed ⓒ Gravity ⓓ None of these
Gravity
15. _____ is the force that stops or tends to stop moving objects. ⓐ Friction ⓑ Speed ⓒ Gravity ⓓ None of these
Friction
16. Moving football stops after covering some distance is due to ________ ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
17. Friction occurs when two bodies are ________ with each other. ⓐ Far away ⓑ In contact ⓒ In fire ⓓ None of these
In contact
18. _________ always acts against the direction of movement. ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
19. Friction always acts ________ the direction of movement. ⓐ In ⓑ Against ⓒ Above ⓓ Below
Against
20. Igniting of the match stick is possible due to __________. ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
21. Penetration of the nail into the wall is due to ________ ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
22. Slowing down or stopping of vehicle is due to ________ ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
23. We ________ walk on earth with friction. ⓐ Can ⓑ Cannot ⓒ Slip ⓓ Fall down
can
24. The wear out of shoes is due to _______. ⓐ Friction ⓑ Speed ⓒ motion ⓓ None of these
Friction
25. Due to friction, some time the tyres of the car _______ ⓐ Worn over time ⓑ New over time ⓒ Good over time ⓓ None of these
Worn over time
26. Friction causes ________ of moving parts of machines over the time. ⓐ Wear and tear ⓑ Strong ⓒ Lubricant ⓓ None of these
Wear and tear
27. Everything that makes our work easier is called a __________. ⓐ Friction ⓑ Speed ⓒ motion ⓓ machine
machine

### Chapter No. 6 Test No. 2

28. Lever, pulley, gear and ramp (inclined plane) are ________ machine. ⓐ Simple ⓑ Complex ⓒ New ⓓ Old
Simple
29. A ________ is a simple machine that can be used to push or lift heavy objects. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
lever
30. The lever that turns around a certain point called ________ ⓐ Center ⓑ Fulcrum ⓒ Circle ⓓ None of these
Fulcrum
31. A ________ is a simple machine that consists of grooved wheel and a rope. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Pulley
32. The load is lifted up by applying force (effort) on one end of the rope passing over the _________. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Pulley
33. Pulling a weight is ________ than lifting it by pulley. ⓐ Easier ⓑ Difficult ⓒ Heavy ⓓ None of these
Heavy
34. Water can be easily drawn from a well by using _______. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Pulley
35. The flag is raised up with the help of _______. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Pulley
36. Changing the direction of force makes it easier to work with the _______. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Pulley
37. To lift objects with the help of pulley, put the effort ________. ⓐ Upward ⓑ Downward ⓒ Left side ⓓ Right side
Downward
38. ________ is a simple machine which consists of toothed wheels of different sizes. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Gear
39. The teeth of ______ wheels fit in with each other and move together. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Gear
40 With the help of _______, we can increase and decrease the speed. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Gear
41. Ramp is also called ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Inclined plane
42. The examples of gear are ⓐ Bicycles ⓑ Grinders ⓒ Sugarcane juice machine ⓓ All of these
All of these
43. _______ is a simple machine with one end relatively higher than the other. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Inclined plane
44. ________ allows us to move objects easily from bottom to top and top to bottom. ⓐ Gear ⓑ lever ⓒ Pulley ⓓ Inclined plane
Inclined plane
45. What is force? ⓐ Push ⓑ Pull ⓒ Lift ⓓ Push and pull
Push and pull
46. When a body changes its position, it is called: ⓐ Friction ⓑ Force ⓒ Motion ⓓ Gravity
Motion
47. All bodies are attracted towards the Earth due to: ⓐ Force ⓑ Friction ⓒ Gravity ⓓ Motion
Gravity
48. If we apply the same force on toy car, it will be travel longer on: ⓐ Rocky soil ⓑ Marble floor ⓒ Floor of bricks ⓓ Ground
Marble floor
49. Which machine consists of grooved wheel? ⓐ Lever ⓑ Pulley ⓒ Inclined plane ⓓ Gear
Pulley