Physical Science, Chapter 7 Magnetism

The properties and interactions of magnets are called:

A device that uses an electromagnet to measure electric current is called:

South ____ north, and south ______ south

Region on a magnet where the magnetic force exerted by a magnet is strongest:

Which is NOT part of a generator?

A device that converts electrical energy into kinetic energy is

What device uses Earth's magnetic field to indicate which way is north?

What happens to the magnetic force as the distance between two magnetic poles decreases?

Which of the following will a magnet attract to?

Which describes the direction of the electric current in AC?

Device that uses electromagnetic induction to increase or decrease the voltage of an AC:

Region surrounding a magnet that exerts a force on other mags & objects made of mag materials:

What do magnetic poles that are alike do?

Large wheel that rotates when pushed by steam, wind, or water & provides mech. energy to a gen.

Electric current that reverses its direction of flow in a regular pattern is called:

What is the interaction between electric charges and magnets called?

A temporary magnet created when there is a current in a wire coil is called:

If the number of output loops is greater than the number of input loops it is a

Which of the following will NOT attract to a magnet?

Opposite ends of magnetic poles do this.

The attractive or repulsive force between electric charges and magnets is called:

A cylindrical coil of wire, produces a mag field when an elec. current passes through the wire:

The Earth is like a giant:

The domains of a magnet are

The current going into a generator is

What surrounds an electric charge and exerts a force on other electric charges?

A group of atoms with their magnetic poles aligned make up

The strength of an electromagnet can be increased by ________ the number of turns on the wire.

How can you make a temporary magnet?

Group of atoms in a mag mat. in which the mag poles of the atoms are aligned in the same dir.:

____________ exists around any current carrying wire.

What word is related to the force that causes electric charges to flow; measured in volts (V)?

Device that uses electromagnetic induction to convert mechanical energy to electrical energy: