Simple Machine Examples PowerPoint X 1.Knife A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 2.Jar lid A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 3.Clock insides A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 4.Shoe laces (Back and Forth) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 5.Runners on a sled A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 6.Faucet HANDLE like the ones shown below A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 7.Flag pole A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 8.Door knob A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 9.Blades on an Ice Skate (sharp) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 10.Shark teeth (incisors!) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 11.Light bulb switch A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 12.Shovel handle A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 13.Broom A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 14.Refrigerator door (with hinges) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 15.Boat Propeller A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 16.Scissors (NOT the cutting edge) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 17. Road going up a hill A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 18. Faucet like the ones shown below A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 19. Bat A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 20. Car windshield (moving forward) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 21. Light bulb A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 22. Skates A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 23.Scissors (the cutting edge) A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 24. Bolt A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 25. SINK STOPPER like the ones shown below A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 26. Clamp A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 27. Stairs A. inclined plane B. lever C. pulley D. screw E. wedge F. wheel and axle 28. What do machines actually do? Work makes work easier by changing the amount of force you exert or the distance over which you exert the force. Mechanical Advantage and Friction 29. Explain what would happen to the input and output if we took all of the friction away? If the friction is taken away, then the input and output are equal. Pulley 30. What is the advantage the pulley provides? The advantage a pulley provides is that it changes the direction over which a force is exerted. 31. How do you calculate the force exerted? To calculate force exerted you divide output by input. Lever and Pulley PPT and quiz Click on the link and see how you do!