Electricity and magnetism

Question 1

Particles with the same charges _____ each other

Answer 1

Repel

Question 2

Particles with opposite charges ____

Answer 2

Attract

Question 3

Sometimes electrons are temporarily pulled away from atoms creating areas of positive and or negative charge, this is known as ______ electricity.

Answer 3

static electricity

Question 4

The movement of charged particles, usually electrons, thus is called an electrical ____

Answer 4

Current

Question 5

Direct currents flow in one direction only, and it is used in _____ operated devices

Answer 5

Battery

Question 6

Alternating currents flow back and forth rapidly, and are used in _______ wiring.

Answer 6

Household

Question 7

are materials that allow electrons to move freely from atom from atom

Answer 7

Conductors

Question 8

Example of common conductors

Answer 8

Good, silver, copper or aluminum

Question 9

is a material that DOES NOT allow electrons to move freely

Answer 9

Insulator

Question 10

Examples of insulator

Answer 10

Wood, glass or rubber

Question 11

are substances whose ability to conduct electricity is midway between that of a conductor and an insulator

Answer 11

Semiconductor; silicone