Across
- 2. the fixed point from where a simple machine moves
- 5. wheels that are found in machines
- 6. the amount of molecules that exist in a certain amount of space
- 7. a change in speed or direction
- 8. can be kinetic, potential, heat, light,
Down
- 1. the muscle on the front of the upper arm
- 3. something that changes the speed, direction or shape of an object
- 4. the force that stops something from moving
- 5. a force of attraction pulling everything together
- 6. a force that works in the opposite direction of a moving object