Across
- 1. push or pull that changes motion
- 5. a few or no moving parts
- 7. the solution to a scientific problem
- 10. pivit point of a lever
- 12. speed with direction
- 15. energy that travels in the form of electromagnetic waves
- 18. mass of a unit volume of a material substance
- 19. the amount of space that something occupies
- 24. proposed solution to a problem
- 25. up and down
- 26. involves newton's first law
- 27. energy of moving electrical charges
- 29. heat transfer through space
- 33. total energy of motion and position of an object
- 35. uses a wheel and axle
- 37. opposition to the flow of electrical charge
- 39. a substance that has mass
Down
- 2. what electrons travel on
- 3. rate at which velocity changes with time
- 4. energy stored in the nucleus of an atom
- 6. ability to make things change or move
- 8. the rate of how fast something moves
- 9. energy of vibrating matter
- 11. device to magnify small objects
- 13. result of force moving a object
- 14. used to raise objects or split them apart
- 16. to come together
- 17. total energy of the particles that make up the object or substance
- 20. the amount of matter in an object
- 21. device that helps us work
- 22. a machine made up of a wheel and a post
- 23. a car on the top of a hill has?
- 28. potential energy stored in chemical bonds
- 30. the smallest part of an element
- 31. a sloping surface
- 32. energy of an object due to its motion
- 34. uses a fulcrum
- 36. what goes up must come down
- 38. used to apply tremendous force with little effort