Across
- 2. the study of force which may be on objects that are moving or at rest
- 4. detectable air waves created by vibration
- 6. a device that can increase the amount or direction of force
- 7. magnets can be used to produce electricity which can create power
- 10. the number of times a machine increases or multiplies the force
- 12. resistance to movement between two surfaces
- 13. the rate at which work is done
- 15. the opposition to movement
- 16. the push or pull on an object to move it
Down
- 1. combines several simple machines
- 3. wave lengths of electromagnetic radiation
- 4. have only one or two parts
- 5. the study of force
- 8. the structure of atoms and molecules and the functions of the particles
- 9. the energy produced by the motions of molecules and atoms
- 11. how well a machine overcomes friction
- 14. moving an object a distance