Across
- 1. / A hammer is an example of which simple machine?
- 8. / Units of work are measured in?
- 10. / In 2 seconds a ball travels 100cm. What is the speed of the ball? ______ cm/sec.
- 12. / This lens bulges outward and causes light rays to meet, or converge.
- 13. / The energy of motion
- 15. / You burn your hand when it comes into contact with a hot stove. What kind of heat transfer is this?
- 16. / The force that pulls all objects towards each other
- 18. / A ladder or ramp is an example of this simple machine?
- 20. / A slinky weighs 10 newtons. How much work does it do climbing 2 meters of steps. (Hint: Work = force x distance)
- 21. / Earth receives energy from the sun by?
- 23. / Energy that is "stored" because of the position and/or arrangement of the object.
Down
- 2. / when light changes direction as a result of "bouncing off" a surface like a mirror.
- 3. / When water in a pot heats up, it becomes less __________ causing it rise to the top .
- 4. / What is a material or an object that does not easily allow heat, electricity, light, or sound to pass through it called?
- 5. / Bicycles, roller skates, and skate boards use this simple machine?
- 6. / Force times distance equals what?
- 7. / bending of light around another object is called?
- 9. / the method of heat transfer
- 11. / An object at rest will remain at rest unless acted on by an unbalanced force is which of Newton’s 3 laws?
- 14. / An Axe or chisel is an example of what kind of simple machine?
- 17. / the bending of light as it passes from one substance to another
- 19. / This lens curves inward and causes light rays to spread apart, or diverge.
- 20. / for every action there is an equal and opposite reaction is which of Newton’s 3 laws?
- 22. / Light has properties of both particles and ________.