Chapter 8 Quizs review

A complete path through which electric current travels is called an _____________ _____________.

• electric circuit

• electrical pathway

• current loop

• power line

Electric current is measured in _______________.

• volts

• ohms

• amperes or amps

• watts

Materials with a HIGH electrical resistance, such as plastic and rubber, are good _________________

• Conductors

• Insulators

• Semiconductors

• Superconductors

Two hidden properties of matter are _______________ and ___________________.

• gravity and friction

• electricity and magnetism

• light and sound

• density and volume

A tiny imbalance between positive and negative charge on an object is known as __________________________________________.

• static electricity

• current electricity

• magnetic field

• electromagnetic induction

What would happen to the magnets as you moved them closer? Choose the best answer:

• They would attract because they are both red

• They would attract because the poles are the same

• They would pull together because they are both red

• They would repel because the poles are the same

A magnet made with wires and electric current is called an __________________________.

• permanent magnet

• electromagnet

• neodymium magnet

• ferromagnet

What happened when Billy moved the magnet closer to the refrigerator?

• The magnet was repelled by the metal on the refrigerator.

• The magnet was attracted by the metal on the refrigerator.

• The magnet had no effect on the refrigerator.

• The refrigerator moved away from the magnet.

A material that keeps its magnetic properties even when not close to other magnets is called a ______________ magnet.

• temporary

• electromagnet

• permanent

• superconductor

Magnets can __________ or ___________ each other.

• attract or repel

• pull or push

• stick or slide

• connect or disconnect