Science, Chapter 13, Unit F

Question 1

A region of magnetic force around a magnet

Answer 1

Magnetic field

Question 2

A temporary agent created when current flows through wire wrapped in coils around an iron bar

Answer 2

Electro magnet

Question 3

A power source that transforms electrical energy into movement, or mechanical energy

Answer 3

Electric motor

Question 4

A device that creates alternating current by spinning an electric coil between the poles of a powerful magnet

Answer 4

Generator

Question 5

One of two ends of a magnet; where a magnet’s pull is strongest

Answer 5

Pole

Question 6

A material through which heat or electricity flows easily

Answer 6

Conductor

Question 7

A material through which heat or electricity does not flow easily

Answer 7

Insulator

Question 8

The buildup of an electric charge on a material

Answer 8

Discharge

Question 9

A moving electrical charge

Answer 9

Current electricity

Question 10

A circuit in which each bulb is connected to the cell separately

Answer 10

Parallel circuit

Question 11

A complete path through which electricity can flow

Answer 11

circuit

Question 12

A reusable switch that protects circuits from dangerously high currents

Answer 12

circuit breaker

Question 13

A circuit in which the current must flow through one bulb in order to flow through the other

Answer 13

Series circuit

Question 14

A device that melts to keep too much electric current from flowing through wires. Once melted, a fuse cannot be reused.

Answer 14

Fuse

Question 15

An example of a good conductor

Answer 15

Metal

Question 16

In homes electrical devices are connected in this type of circuit

Answer 16

Parallel circuits

Question 17

Have tiny particles; some have a negative electrical charge and some have a positive electrical charge

Answer 17

Atoms

Question 18

Like poles of a magnet do this

Answer 18

Repel

Question 19

When current travels through the second transformer before entering your home, the transformer decreases this

Answer 19

Voltage

Question 20

This type of current is produced by dry cells

Answer 20

Direct current

Question 21

Name of the device that controls the current in a circuit

Answer 21

Switch

Question 22

If you hear this you should: Get out of the water; don’t use the telephone; stay away from high places and tall objects

Answer 22

Thunder

Question 23

Two objects connected to a cell in a single path

Answer 23

Series circuit

Question 24

A complete path that electricity can move through

Answer 24

Circuit

Question 25

The movement of an electrical charge from one object to another

Answer 25

Discharge

Question 26

The build up of electrical charge on a material

Answer 26

Static electricity

Question 27

When each object is connected to the cell separately this is formed

Answer 27

Parallel circuit

Question 28

The electricity that flows through a circuit

Answer 28

Current electricity

Question 29

The pull of a magnet is strongest at its __________.

Answer 29

Poles

Question 30

A material through which electricity does not flow

Answer 30

Insulator

Question 31

A magnet created using electric current

Answer 31

Electromagnet

Question 32

A region of magnetic force surrounding a magnet is called the ____________.

Answer 32

Magnetic field