Unit 2 Vocab (so far!)

4. an instrument used to measure force
5. an area of magnetic influence around a magnet
9. a tiny part of an atom that has a negative charge and moves around the nucleus
13. the flow of electricity through a conductor
16. a force acting between surfaces in contact. Friction acts to resist motion
17. a source of stored chemical energy
19. a fundamental force of nature that acts between charged particles and creates electric and magnetic fields
24. an object that sticks to iron
26. a material that prevents the flow of electricity, commonly plastic, rubber, glass, or air
27. a piece of iron that behaves like a magnet only when it is under the influence of an external magnetic field
28. a pathway for the flow of electricity
29. the interaction of electric and magnetic fields

1. an attractive force between objects, like between Earth and objects on Earth
2. the material in a lightbulb (usually a thin wire) that makes light when heated by an electric current
3. to push away from each other
6. to pull toward each other
7. energy emitted as an electromagnetic wave
8. a material capable of transmitting energy, particularly in the forms of heat and electricity
10. energy of movement
11. the end of a magnet
12. the standard unit for measuring force in the metric system
14. the ability to apply force over a distance
15. the place on a component where connections are made to allow electricity to flow
18. an instrument that uses a free-rotating magnetic needle to show direction
20. energy that matter has because of its position
21. one item in a circuit
22. to act on and be acted upon by one or more objects
23. the process of turning iron into a temporary magnet
25. the movement of energy from one location to another