Across
- 6. ratio of the output of work vs the input
- 7. combination of 2 or more simple machines working together
- 8. simple machine like a shovel
- 11. unit used to measure power
- 14. when a force is _____ to motion, the net force is ZERO
- 16. Famous inventor who visualized many futuristic machines
- 20. the ability to do work and cause change
- 21. type of energy that means energy of motion
- 23. type of potential energy of compressing or stretching
- 25. type of energy that uses gravity to cause motion
- 27. the efficiency of machines are _____ impacted by friction, resistance, etc
- 29. force that resists and slows movement
- 30. ____ energy is the sum of KE and PE of an object
Down
- 1. rate at which energy is converted so something else
- 2. an _____ plane is a simple machine like a ramp
- 3. more energy in = more energy ___ in PE
- 4. simple machine like an axe head
- 5. unit used to measure work
- 9. a device that changes the force or increases speed
- 10. The mechanical ____ is the ratio of output to input
- 12. gasoline is a type of _____ energy
- 13. type of machine that uses only one movement to do work
- 14. type of energy that means stored within objects
- 15. unit used to measure forces
- 17. type of potential energy meaning from energy stored in chemicals
- 18. _____ are a compound machine with 2 levers and 2 wedges
- 19. items working together to cause change
- 22. _____ must happen for work to be done
- 24. The Law of ______ of Energy says energy can't be created or destroyed
- 26. there are ____ types of simple machines
- 28. force that makes movement occur