Quiz about Science Unit 2B Lesson 4: Electric Circuits

Question 1

Movement of electricity through a material, including a circuit, is called a ___________

Accepted Answer

current

Answer

circuit

Answer

conductor

Answer

insulator

Answer

ampere

Question 2

Materials through which charges cannot flow easily, are called ___________

Accepted Answer

insulator

Answer

circuit

Answer

current

Answer

conductor

Answer

ampere

Question 3

A __________ is any path that electricity can flow through.

Accepted Answer

circuit

Answer

current

Answer

conductor

Answer

insulator

Answer

ampere

Question 4

A(n) _________ is unit of electric current.

Accepted Answer

ampere

Answer

circuit

Answer

current

Answer

conductor

Answer

insulator

Question 5

A material through which an electric charge can flow easily is called a(n) ____________.

Accepted Answer

conductor

Answer

circuit

Answer

current

Answer

insulator

Answer

ampere

Question 6

_________ are devices that control current.

Accepted Answer

resistors

Answer

volts

Answer

voltage

Answer

resistance

Answer

ohms

Question 7

The force of electricity in a circuit is measured in __________.

Accepted Answer

volts

Answer

voltage

Answer

resistance

Answer

ohms

Answer

resistors

Question 8

___________ is a measure of how difficult it is for an electric charge to move through an object.

Accepted Answer

resistance

Answer

volts

Answer

voltage

Answer

ohms

Answer

resistors

Question 9

_____________ is a measure of the amount of electric current between two points.

Accepted Answer

voltage

Answer

volts

Answer

resistance

Answer

ohms

Answer

resistors

Question 10

Resistance is measured in ________.

Accepted Answer

ohms

Answer

volts

Answer

voltage

Answer

resistance

Answer

resistors

Question 11

A ___________ is a connection that allows current to take the path of least resistance.

Accepted Answer

short circuit

Answer

grounded

Answer

open circuit

Answer

closed circuit

Answer

fuse

Question 12

A safety device with a thin metal strip that will melt if too much current passes through a circuit.

Accepted Answer

fuse

Answer

circuit breaker

Answer

short circuit

Answer

open circuit

Answer

closed circuit

Question 13

When there is a break in the wire and a current cannot pass through the circuit.

Accepted Answer

open circuit

Answer

circuit breaker

Answer

switch

Answer

closed circuit

Answer

fuse

Question 14

______________ are switches that will bend away from circuits as they heat up.

Accepted Answer

circuit breaker

Answer

switch

Answer

open circuit

Answer

closed circuit

Answer

fuse

Question 15

When there is NOT a break in the wires and a current can pass through the circuit.

Accepted Answer

closed circuit

Answer

circuit breaker

Answer

switch

Answer

open circuit

Answer

fuse

Question 16

Used to turn an electrical device on and off.

Accepted Answer

switch

Answer

circuit breaker

Answer

open circuit

Answer

closed circuit

Answer

fuse

Question 17

One light bulb in a string of lights goes out. This causes all of the other lights in the string to also go out. This is an example of a

Accepted Answer

series circuit

Answer

resistor.

Answer

parallel circuit.

Answer

closed circuit

Question 18

When a switch is turned from the off to the on position, it is changing the circuit in which of the following ways?

Accepted Answer

An open circuit is being changed into a closed circuit.

Answer

A closed circuit is being changed into an open circuit.

Answer

A parallel circuit is being changed into a series circuit.

Answer

A series circuit is being changed into a parallel circuit.

Question 19

Which of the following objects can be used to complete this broken electric circuit and make the light bulb glow?

Accepted Answer

iron nail

Answer

glass rod

Answer

rubber band

Answer

plastic straw

Question 20

In a closed circuit, the current only flows from the power source to an electrical device such as a lamp.

Accepted Answer

false

Answer

true

Question 21

A load uses electric energy and transforms it to another form of energy.

Accepted Answer

true

Answer

false

Question 22

Which of the following is NOT a load?

Accepted Answer

switch

Answer

light bulb

Answer

radio

Answer

fan

Question 23

Current in an electric circuit has which of the following?

Accepted Answer

moving negative electric charges

Answer

stationary positive electric charges

Answer

moving positive electric charges

Answer

stationary negative electric charges

Question 24

Which material is a conductor?

Accepted Answer

copper

Answer

wood

Answer

string

Answer

plastic

Question 25

Which of the following has a negative electric charge?

Accepted Answer

electrons

Answer

ohms

Answer

protons

Answer

neutrons

Question 26

Which of the following is an example of a circuit energy source?

Accepted Answer

battery

Answer

switch

Answer

wire

Answer

heater

Question 27

How are a series and a parallel circuit different?

Accepted Answer

series circuit has one path; parallel circuit has multiple paths

Answer

series circuit uses copper wires; parallel circuit uses zinc wires.

Answer

series circuit has one battery; parallel circuit has multiple batteries

Answer

series circuit has one load; parallel circuit has multiple loads

Question 28

What statement lists the correct measurements of electrical quantities?

Accepted Answer

Voltage is measured in volts, current in amperes, and resistance in ohms

Answer

Voltage is measured in amps, current in amperes, and resistance in ohms

Answer

Voltage is measured in volts, current in ohms, and resistance in amperes

Answer

Voltage is measured in amperes, current in ohms, and resistance in volts

Question 29

A small music player uses 3.0 volts. The circuit in the music player has a total resistance of 1.5 ohms. What is the current?

Accepted Answer

2.0 amperes

Answer

0.5 amperes

Answer

4.0 amperes

Answer

9.0 amperes

Question 30

This image is an example of a _____________

Accepted Answer

Parallel Circuit

Answer

Series Circuit

Answer

Open Circuit

Answer

Closed Circuit

Question 31

This image is an example of a _____________

Accepted Answer

Series Circuit

Answer

Parallel Circuit

Answer

Open Circuit

Answer

Closed Circuit

Question 32

This image is an example of a _____________

Accepted Answer

Open Circuit

Answer

Series Circuit

Answer

Parallel Circuit

Answer

Closed Circuit

Question 33

This image is an example of a _____________

Accepted Answer

Closed Circuit

Answer

Series Circuit

Answer

Parallel Circuit

Answer

Open Circuit

Question 34

Select (2) reasons why the power cord of a lamp has a metal core with a plastic coating.

Accepted Answer

metal serves a conductor, through which an electric charge can flow easily

Accepted Answer

plastic serves as an insulator, which prevents anyone from getting shocked

Answer

plastic serves a conductor, through which an electric charge can flow easily

Answer

metal serves a insulator, through which an electric charge cannot flow easily

Question 35

Circuits with a lot of resistance will have _________ .

Accepted Answer

a low voltage

Answer

a high voltage

Answer

no voltage

Answer

up and down voltage

Question 36

In which scenario would the use of a parallel circuit be preferable.

Accepted Answer

Christmas lights

Answer

Table lamp with one bulb

Answer

Computer

Answer

Television

Question 37

An engineer discovered that a TV set was receiving too much voltage to work properly. Which of the following circuit parts should the engineer add to make the TV set work properly?

Accepted Answer

resistor

Answer

switch

Answer

insulator

Answer

conductor

Question 38

Two electrical circuits have the same 15-volt batteries. Circuit A has 2 ohms of resistance, and circuit B has 6 ohms of resistance. Which of the following statements is correct?

Accepted Answer

Circuit B has less current than circuit A, as it has more resistance.

Answer

Circuit B has the same amount of current as circuit A.

Answer

Circuit B has more current than circuit A, as it has less resistance.

Answer

Circuit B has less current than circuit A, as it has less resistance.

Science Unit 2B Lesson 4: Electric Circuits

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