Vocabulary

4. The smallest unit of a chemical element. Composed of protons and neutrons.
5. A single force whose external effects are the same as the effects of several forces acting on the body.
8. Forces that act between two objects that are not physically touching each other.
9. a magnet that keeps its magnetism after removing the magnetizing force.
11. A particle with negative electric charge opposite of a proton.
13. A device that converts motion into electrical energy.
15. A device used to change to voltage of a current in one circuit to a different voltage in a second circuit.
17. Two areas of a magnet where the magnetic field is the strongest.

1. A coil wire that acts as a magnet when an electric current passes through it.
2. Electric charge that accumulates on an object rather than flowing through it as a current.
3. an area composed of a group of atoms whose magnetic fields are aligned in the same direction.
6. Space where magnetism exists.
7. A device for changing energy into mechanical energy in the form of rotation.
10. A device that that becomes magnetized when an electric current flows through the wires.
12. A neutral particle that is part of every atomic nucleus.
14. A particle that has a positive electric charge. It is the opposite of an electron.
16. Any factor that causes a body to change its speed, direction, or shape.