Across
- 2. speed in a given direction
- 4. measure of the motion of a body equal to the product of its mass and velocity
- 6. a chain, belt or rope wrapped around a wheel
- 7. rate at which an object moves
- 9. force that opposes motion
- 10. a decrease in velocity
- 12. a device that helps make work easier by changing the size or direction of a force
- 14. Plane a slanted surface used to raise an object
- 16. force of attraction between objects due to their masses(amount of mass)
- 17. simple machine with a bar that pivots at a fixed point called the fulcrum
- 18. the amount of work being done in a given amount of time
- 19. Resistance occurs between the surface of the falling object and the air that surronds it
Down
- 1. change in velocity
- 3. Motion the curved path an object follows when thrown or propelled near the surface
- 5. how much matter
- 8. Advantage the number of times a machine multiplies an effort force
- 11. inclined plane wrapped around aa cylinder to form a spiral
- 13. machines types of machines that do work with one movement
- 14. the tendency of all objects to resist any change in motion
- 15. push or pull on an object