Across
- 1. act of moving
- 5. a ramp that helps to move heavy objects up and down heights
- 7. does not move or change
- 8. to turn or rotate
- 11. a machine that consist or more than one simple machine
- 16. a push or pull
- 17. the force of the wind causes it to move the blades and turn on its axle
- 18. a chair with wheels used by the sick or disabled
- 20. a rod or shaft that connects a pair of wheels
Down
- 2. to rotate around a stationary point
- 3. a slope
- 4. a measure of the opposition to current flow in an electrical circuit
- 6. move something forward using force
- 8. exert force on something to move it towards oneself
- 9. a way of measuring how much force is acting over and area
- 10. machine a machine with few or no moving parts
- 12. a wheel that carries a flexible rope.used to lift heavy things
- 13. a force exerted by a machine or in a process
- 14. the action of one surface or object rubbing against another
- 15. any device that makes work easier. a system that uses power to apply forces and control movement to do an action
- 19. the ability to do work