Class 4 Science Chapter 6 Test 2 Welcome to your Class 4 Science Chapter 6 Test 2 1. What is force? Push Pull Lift Push and pull 2. The lever that turns around a certain point called ________ Center Fulcrum Circle None of these 3. ________ is a simple machine which consists of toothed wheels of different sizes. Gear lever Pulley Inclined plane 4. The flag is raised up with the help of _______. Gear lever Pulley Inclined plane 5. Water can be easily drawn from a well by using _______. Gear lever Pulley Inclined plane 6. Pulling a weight is ________ than lifting it by pulley. Easier Difficult Heavy None of these 7. With the help of _______, we can increase and decrease the speed. Gear lever Pulley Inclined plane 8. A ________ is a simple machine that consists of grooved wheel and a rope. Gear lever Pulley Inclined plane 9. ________ allows us to move objects easily from bottom to top and top to bottom. Gear lever Pulley Inclined plane 10. If we apply the same force on toy car, it will be travel longer on: Rocky soil Marble floor Floor of bricks Ground 11. The load is lifted up by applying force (effort) on one end of the rope passing over the _________. Gear lever Pulley Inclined plane 12. Everything that makes our work easier is called a __________. Friction Speed motion machine 13. Ramp is also called Gear lever Pulley Inclined plane 14. The teeth of ______ wheels fit in with each other and move together. Gear lever Pulley Inclined plane 15. Lever, pulley, gear and ramp (inclined plane) are ________ machine. Simple Complex New Old 16. To lift objects with the help of pulley, put the effort ________. Upward Downward Left side Right side 17. When a body changes its position, it is called: Friction Force Motion Gravity 18. _______ is a simple machine with one end relatively higher than the other. Gear lever Pulley Inclined plane 19. A ________ is a simple machine that can be used to push or lift heavy objects. Gear lever Pulley Inclined plane 20. Changing the direction of force makes it easier to work with the _______. Gear lever Pulley Inclined plane Please fill in the comment box below. Time is Up! Time's up