Across
- 3. in a collision, sound can be an example of this type of energy
- 4. the moon has less gravity than the earth because it is this
- 7. a property of matter that makes it resist a change in motion, a property of matter that makes it resist a change in motion
- 8. the part of a lever which holds and balances weight
- 10. has more mass than a car
- 13. two objects bumping into each other
- 14. acts like a giant electromagnet
- 15. which has more inertia, a dog or horse?
- 18. this energy includes an object's mass, speed, and direction
- 19. the movement resulting from force
- 22. machine that can help overcome friction
- 23. in a collision can cause the speed of an object to change because this happens to the energy
- 24. theses forces do work or allow work to be done, an example includes a person pushing a lawnmower
- 25. an object in motion will stay in this unless acted upon by an unbalanced force
- 28. discovered the laws of motion
- 29. gives a building its shape
Down
- 1. these forces prevent work from being done, a chair resting on the floor is an example
- 2. the push or pull on an object to move it
- 5. things like wax, can be used to minimize friction
- 6. most stable shape because of a low center of gravity
- 9. has a magnetic field because of its polarity
- 11. a machine designed to overcome weight and make lifting easier
- 12. can generate gravity
- 16. a type of inclined plane
- 17. opposites of this on a magnet attract
- 20. the amount of matter an object has
- 21. increases with a rough surface
- 26. a device that makes work easier
- 27. this has less mass than an elephant
- 29. base of a building