Quiz about Unit 3 Energy TEST

Question 1

A girl turned the light off and went to bed.

She remembered she had accidentally left her glass of ice water on the counter.

When she got up the next morning, the ice had melted.

What form of energy caused the ice to melt?

Accepted Answer

thermal energy

Answer

sound energy

Answer

light energy

Answer

mechanical energy

Question 2

Which form of energy is produced when a guitar string vibrates?

Accepted Answer

sound energy

Answer

chemical energy

Answer

electrical energy

Answer

light energy

Question 3

A student created an electrical circuit, shown below.

Accepted Answer

The electrical circuit is open.

Answer

The electrical circuit is working.

Answer

The electrical circuit is complete.

Answer

The electrical circuit is closed.

Question 4

Which forms of energy from the Sun reach the Earth?

Accepted Answer

light and thermal

Answer

light and mechanical

Answer

thermal and electrical

Answer

mechanical and thermal

Question 5

Which of the following represents a transfer of mechanical energy?

Accepted Answer

a baseball batt hitting a ball

Answer

music coming from a speaker

Answer

light beaming from a flashlight

Answer

an oven heating a meal

Question 6

A bell was placed by the cash register in a busy store. Customers tap the bell to ring it when they are ready to pay for their purchases. Which type of energy causes the bell to ring?

Accepted Answer

Mechanical energy is used to tap the bell and produce sound.

Answer

Sound energy causes the bell to ring.

Answer

Electric energy is used to ring the bell.

Answer

Customers use the sense of touch to make the sound.

Question 7

All of the following items listed below are CONDUCTORS except?

Accepted Answer

rubber

Answer

brass

Answer

copper

Answer

iron

Question 8

Which part of the lamp system shown above could be removed and the lamp still work?

Accepted Answer

the lamp shade

Answer

the electrical cord

Answer

the light bulb

Answer

the wall outlet

Question 9

______________ in water can transfer

energy and cause objects to move.

Accepted Answer

Waves

Answer

Motion

Answer

Conductor

Answer

Flow

Question 10

A student tried to create an electrical circuit. He connects a wire to post A on the light fixture and the positive post of the battery as shown in the picture below.

Accepted Answer

Add a wire to post B on the light fixture and connect it to the negative post of the battery

Answer

Add a wire to post B on the light fixture and connect it to the positive post of the battery

Answer

Add a wire to post A on the light fixture and connect it to the positive post of the battery

Answer

Add a wire to post A on the light fixture and connect it to the negative post of the battery

Question 11

The dominoes started to fall because energy was ____________

to the system. The dominos will continue to fall because the energy is _________________from one domino to the next.

Which words would best complete the sentences?

Accepted Answer

added; transferred

Answer

removed; absorbed

Answer

added; absorbed

Answer

removed; transferred

Question 12

How can mechanical energy move from place to place?

Accepted Answer

moving objects

Answer

electrical currents

Answer

light

Answer

vibrations

Question 13

________ is the transfer of thermal energy from one object to another.

Accepted Answer

heat energy

Answer

light energy

Answer

sound energy

Answer

physical energy

Question 14

What is energy transfer?

Accepted Answer

The movement of energy from one place to another

Answer

The process of energy staying in one place

Answer

The creation of new energy

Answer

The destruction of energy

Question 15

A ___________________ allows electrical current to flow through it.

Accepted Answer

circuit

Answer

switch

Answer

battery

Answer

transfer

Question 16

A student builds a simple circuit for a battery-operated heater, but the heater does not turn on. What should be done?

Accepted Answer

Connect a second wire from the heater to the battery.

Answer

Add another battery to the circuit.

Answer

Add another heater to the circuit.

Answer

Connect a wire from the heater to a different battery.

Question 17

Wire is used for many different things. One use is that wire can carry electricity from one place to another. Typically, wire has two parts. The outer covering is often plastic that acts as _________________. The inner part of the wire is metal that acts as ________________.

Accepted Answer

an insulator; a conductor

Answer

a conductor; a conductor

Answer

a conductor; an insulator

Answer

an insulator; an insulator

Question 18

Which statement is true about the picture above?

Accepted Answer

The wooden handle is a good insulator of thermal energy.

Answer

The wooden handle is a good conductor of thermal energy.

Answer

The metal pan causes the water to boil rapidly.

Answer

The metal pan is a poor conductor of thermal energy.

Question 19

power lines are an example of this type of ENERGY

Accepted Answer

electrical

Answer

sound

Answer

mechanical

Answer

nuclear

Question 20

A form of energy we can hear is...

Accepted Answer

sound energy

Answer

light energy

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