Quiz about Electricity and Magnetism

Question 1

The force or push that causes electric charges to move is called ___________.

Accepted Answer

voltage difference

Answer

resistance

Answer

current

Answer

static electricity

Question 2

Electric charges always flow from ________ areas to 	___________	 areas.

Accepted Answer

negative, positive

Answer

positive, negative

Answer

positive, neutral

Answer

neutral, negative

Question 3

A material through which electrons do NOT flow easily is a(n) ____________		.

Accepted Answer

insulator

Answer

conductor

Answer

fuse

Answer

circuit breaker

Question 4

Which of the following statements about electric charge is true?

Accepted Answer

Electrical forces act at a distance.

Answer

Objects must be touching on another to exert electrical force.

Answer

Air cannot conduct electricity; it is conducted only by solid materials.

Answer

Opposite electric charges always repel one another.

Question 5

Mr. Jacobson and his class are conducting an experiment. The class needs to choose a good insulator. Which of the following could be used as an insulator?

Accepted Answer

plastic plate

Answer

copper wire

Answer

silver spoon

Answer

gold necklace

Question 6

Which of the following will increase the resistance of a wire?

Accepted Answer

Increasing the temperature of the wire

Answer

using a thicker/wider wire

Answer

using a shorter wire

Answer

using silver instead of copper

Question 7

What is the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms?

Accepted Answer

45 amps

Answer

1.8 amps

Answer

0.022 amps

Answer

8.8 amps

Question 8

Which two areas of physical science are closely related to the development of electric motors and generators?

Accepted Answer

electricity and magnetism

Answer

sound and light

Answer

ight and magnetism

Answer

electricity and sound

Question 9

Which of the following will decrease the strength of the magnetic field around a wire?

Accepted Answer

using less loops around the iron core

Answer

increasing the current flowing through the wire

Answer

flipping the direction of the current flowing through the wire

Answer

using a larger iron core

Question 10

Silver has a resistance of 0.0198 ohms.  What voltage would produce a current of 100 amps?

Accepted Answer

1.98 V

Answer

5,050 V

Answer

0.000198 V

Answer

100.0198 V

Question 11

This contains a piece of metal that melts if it gets too hot in order to open a circuit.

Accepted Answer

fuse

Answer

conductor

Answer

insulator

Answer

circuit breaker

Question 12

The function of a generator is to change _____________________		.

Accepted Answer

mechanical energy to electrical energy

Answer

chemical energy to electrical energy

Answer

electrical energy to chemical energy

Answer

electrical energy to mechanical energy

Question 13

This exerts a force that causes other electric charges to move.

Accepted Answer

electrical fields

Answer

electrical poles

Answer

insulators

Answer

conductors

Question 14

Which circuit below contains the greatest voltage?

Accepted Answer

A circuit with a current of 25 amps and a resistance of 16 ohms

Answer

A circuit with a current of 20 amps and a resistance of 16 ohms

Answer

A circuit with a current of 10 amps and a resistance of 10 ohms

Answer

A circuit with a current of 20 amps and a resistance of 10 ohms

Question 15

What is the current of the circuit in the picture?

Accepted Answer

0.6 amps

Answer

60 J

Answer

60 amps

Answer

0.6 Watts

Question 16

What process is the method by which a neutral object obtains an electrical charge from a distance?

Accepted Answer

induction

Answer

convection

Answer

radiation

Answer

conduction

Question 17

Which of the following objects would NOT be a good insulator of electric charge?

Accepted Answer

skin

Answer

wood

Answer

plastic

Answer

rubber

Question 18

Which symbol below would represent a device that can easily turn the circuit on or off?

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 19

The Law of Conservation of Charge states that ___________		.

Accepted Answer

charge cannot be created and destroyed but it can be transferred.

Answer

charge can be created and destroyed but NOT transferred.

Answer

charge cannot be created and destroyed and it cannot be transferred.

Answer

none of the above

Question 20

Which of the following statements is true about the circuit

Accepted Answer

There is 1 battery, 2 switches, and 3 resistors.

Answer

There are 2 batteries, 2 switches, and 2 resistors.

Answer

There are 2 batteries, 2 switches, and 3 resistors.

Answer

There are 3 batteries and 3 resistors.

Question 21

Positively charged particles in an atom

Accepted Answer

Protons

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 22

Negatively charged particles in an atom

Accepted Answer

Electrons

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 23

Particles in the atom that have no charge

Accepted Answer

Neutrons

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 24

When non-magnetic materials become attracted to magnets

Accepted Answer

Ferromagnetism

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 25

A device that detects electric charge on an object

Accepted Answer

Electroscope

Answer

Series circuit

Answer

Parallel circuit

Answer

Voltmeter

Answer

Grounding

Question 26

A device that measures the voltage difference in a circuit

Accepted Answer

Voltmeter

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Grounding

Question 27

Temporary magnet made by placing a piece of iron inside a current carrying coil of wire.

Accepted Answer

Electromagnets

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 28

Providing a path that allows electric charges to travel directly into the Earth rather than traveling through a building.

Accepted Answer

Grounding

Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Question 29

Circuit that has only one pathway for current to travel through

Accepted Answer

Series circuit

Answer

Parallel circuit

Answer

Electroscope

Answer

Voltmeter

Answer

Grounding

Question 30

Circuit that has more than one pathway for current to travel through

Accepted Answer

Parallel circuit

Answer

Series circuit

Answer

Electroscope

Answer

Voltmeter

Answer

Grounding

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