Across
- 4. plane a sloping ramp where heavy loads can be raised
- 5. when two things strike against each other
- 8. a simple machine used often in transportation
- 9. the energy of motion
Down
- 1. energy that is stored in an object
- 2. a wheel with a groove with a cord or string running over it; if you pull down on one end, the other goes up
- 3. something used to split things apart; used to chop wood or shovel dirt
- 6. a pointed metal pin used to join things together by being rotated so it pierces wood or another material
- 7. a bar that has a pivot point used to move heavy objects by putting pressure on one end and lifting the other