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4. 1 What is the term for pushing or pulling on an object to make it move? a.Work b.Force c.Power d.Energy What is ….a Click here for answer back

5. 2 A student wants to use a lever to lift a heavy load. The fulcrum should be closer to the load than to the effort to use as little effort as possible. True or false? back Click here for answer What is ….true

6. 3 In a compound pulley, the amount of effort needed is doubled when an additional pulley is added. True or false back Click here for answer What is ….false

7. 4 Which will require the greatest force to move an object up the inclined plane? a.Steel ramp with a steep slope b.Sandpaper ramp with a steep slope c.Sandpaper ramp with a gentle slope d.Steel ramp with a gentle slope back Click here for answer What is ….b

8. 1 A Ferris wheel is an example of a wheel and axle. True or false back Click here for answer What is ….true

9. 2 What simple machines are found in a can opener? a.Screw, lever, pulley b.Lever, wedge, pulley c.Wheel and axle, lever, wedge d.Wheel and axle, pulley, lever back Click here for answer What is ….c

10. 3 A science teacher in a wheel chair uses a ramp to enter the school building. What simple machine did the science teacher use? a.Inclined plane b.Wedge c.Pulley d.lever back Click here for answer What is ….a

11. 4 Simple machines make tasks easier by decreasing the amount of work needed to do the task. True or false? back Click here for answer What is ….false

12. 1 Which of the following is a type of simple machine that is made from two inclined planes a. Lever b. Screw c. Pulley d. Wedge back Click here for answer What is ….d

13. 2 Which of the following lists three levers? a.Flag pole, ramp, pliers b.Ice tongs, flag pole, nutcracker c.Nutcracker, pliers, ice tongs back Click here for answer What is ….c

14. 3 The purpose of a simple machine is to use less force to do the work. True/False back Click here for answer What is ….True

15. 4 When you use a lever, the object you want to lift is called the fulcrum. True/false back Click here for answer What is ….false

16. 1 When the effort and load have the same weight and are each the same distance from the fulcrum of a lever, the lever is balanced between the effort and force. True/False back Click here for answer What is ….True

17. 2 Carrie wants to lift a heavy object using a lever. To use the least amount of force she should apply the force next to the load. True/False back Click here for answer What is ….False

18. 3 Which is an example of a wheel and axle? a. Nutcracker b. Nail c. Hammer d. Screwdriver back Click here for answer What is ….d

19. 4 Donald pulls down on the rope attached to a fixed pulley. What will happen to the load hanging from the hook on the pulley? a.The load will move down. b.The load will move up. c.The load will move to the left. back Click here for answer What is ….b

20. 1 What type of machine is a ladder? a. Inclined plane b. Lever c. Pulley d. wedge back Click here for answer What is ….a

21. 2 Screws and levers combined make garden shears. True/False back Click here for answer What is ….false

22. 3 The egg beater blades act as a wedge. True/False back Click here for answer What is ….True

23. 4 A heavy box at the top of an inclined plane stays in place because the force of friction balances the force of gravity. True/False back Click here for answer What is ….True