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ENERGY QUIZ #2

Total questions: 65

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?

a)

thermal energy to mechanical energy

b)

thermal energy to chemical energy to mechanical energy

c)

chemical energy to thermal energy to mechanical energy

d)

chemical energy to electrical energy

2.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
3.
A hairdryer converts -- 
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
4.
Which items would have this energy transformation: electrical energy -> thermal energy and light energy?
a)
toaster
b)
candle burning
c)
windmill turning
d)
Iron for your clothes
5.

Which items would have this energy transformation: mechanical energy -> sound energy?

a)

turning on a flashlight

b)

nuclear power plant

c)

wind turbine turning

d)

playing a violin

6.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
7.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
8.
A swing has potential energy if _____________.
a)
it is in motion
b)
it is swinging backward
c)
it is sitting still
d)
it is spinning
9.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
10.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
11.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
12.

Most of the world's energy is solar. Solar energy is energy from the

a)

Earth

b)

Solar panels

c)

Sun

d)

Moon

13.

Light energy is also known as

a)

radiant energy

b)

thermal energy

c)

heat energy

d)

nuclear energy

14.

Thermal energy is also known as

a)

light

b)

heat

c)

radiation

15.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
16.
Can you create energy?
a)
Yes
b)
No
17.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
18.
Heat transfer in wind.
a)
conduction
b)
convection
c)
radiation
19.
On a cold rainy day a baby is touching a cold window.  It feels so cold. Which way is the heat moving moving? 
a)
Cold is moving from the window to the hand.
b)
Heat is moving from the hand to the window.
c)
Heat doesn't move.
d)
It moves in currents
20.
Which ice cube will melt first?
a)
The large cube
b)
The small cube
c)
They will melt at the same rate
21.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
22.
Heat transfer occurs
a)
in many directions
b)
both from warm objects to colder ones and from cold objects to warmer ones.
c)
only from warm objects to colder ones.
d)
only from cold objects to warmer ones.
23.
A cup of tea with a temperature of 80 degrees Celsius is placed on a table in a 20 degree Celsius room.  What happens to the thermal energy and the molecular motion of the tea when it is left on the table?
a)
The thermal energy increases and the molecules move faster.
b)
The thermal energy decreases and molecules move more slowly.
c)
The thermal energy increases and the molecules move more slowly.
24.
A student touches a metal sink with her finger and notices that her finger feels cold.  Which of the following statements explains this observations?
a)
Heat energy flows from the student's finger to the metal.
b)
Heat energy flows from the metal sink to the student's finger.
c)
The student's finger was originally at the same temperature as the sink.
25.

The average kinetic energy of the atomes or molecules within a substance.

a)

thermal energy

b)

kinetic energy

c)

temperature

d)

gas

26.

Everything has thermal energy

a)

False

b)

True

27.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

28.

If an insulator is doing it's job well, the temperature of an object over time should...

a)

rise slowly

b)

lower quickly

c)

show very little change

d)

rise quickly

29.

If this drink is sitting outside on a hot, sunny day, name two reason why the drink won't stay cold.

a)

radiation - from the sun is heating the glass

b)

conduction - the table beneath the glass is heating

c)

convection - the air is moving in a circle pattern around

d)

conduction - the straw is heating up

30.

After holding an ice pack against his skin for 20 minutes, the man notices the ice pack is melting. Why is this happening?

a)

radiation - the ice pack is now all melted

b)

conduction - body heat transferred to the cold ice pack

c)

convection - the water in the ice pack flowed in a circle pattern

d)

conduction - heat came from the bigger object to the smaller

31.

If a door was left open between the bedroom (74 degrees) and the living room (68 degrees), what would likely happen to the temperatures after several hours?

a)

nothing, they would not change

b)

both rooms would become hotter 

c)

both room would become colder

d)

the bedroom temp. would lower and the living room temp. would rise

32.

What type of heat transfer is shown here?

a)

convection

b)

conduction

c)

radiation

d)

sun shining

33.

The potential energy of an object depends on its

a)

height and speed

b)

mass and height

c)

mass and speed

34.

Stored energy is called _________ energy.

a)

potential

b)

kinetic

c)

mechanical

d)

thermal

35.

What are two ways you could decrease the potential energy of a bucket full of water sitting on a bench? (Select two options)

a)

Move the bucket to the ground (decrease the height)

b)

Add some water to the bucket (increase the mass)

c)

Pour some water out (reduce mass)

d)

Move the bucket to a higher location (increase the height)

36.

When coasting while roller skating, you eventually stop due to _______.

a)

brakes

b)

potential energy

c)

friction

d)

kinetic energy

37.

Which best describes the changes in energy as a child goes down a slide?

a)

PE decreases, KE increases

b)

PE is constant, KE increases

c)

PE and KE are constant

d)

ME decreases

38.

The combined total of the KE and PE in a system is called _________.

a)

radiant energy

b)

nuclear energy

c)

potential kinetic energy

d)

mechanical energy

39.

True / False: Energy is measured in joules (J).

a)

True

b)

False

40.

Which would increase the KE of a wagon? (Select all that apply)

a)

Add mass to the wagon

b)

Decrease the mass of the wagon

c)

Increase the speed of the wagon

d)

Decrease the speed of the wagon

41.

These waves can travel through empty space.

a)

Transverse

b)

Electromagnetic

c)

Mechanical

d)

Water

42.

These waves need a medium to travel through.

a)

Transverse

b)

Electromagnetic

c)

Mechanical

d)

Light

43.

What type of wave is this?

a)

Transverse wave

b)

Longitudinal wave

c)

Electromagnetic wave

d)

Mechanical wave

44.

What type of wave is this?

a)

Mechanical

b)

Electromagnetic

c)

Transverse

d)

Longitudinal

45.

The amplitude of a wave is the wave's ____________

a)

Height

b)

Highest point

c)

Length

d)

Size

46.

The crest is a wave's __________ point.

a)

Highest

b)

Lowest

c)

Strongest

47.

Aside from measuring wavelength from crest-crest, we can measure wavelength from __________-___________

a)

Trough-trough

b)

Crest-trough

c)

Rest-trough

d)

Amplitude-crest

48.

Mediums act as "roads" for waves. Mediums are really just types of what?

a)

Matter

b)

Waves

c)

Light

d)

Energy

49.

Which options below represent mediums? (select all that apply).

a)

Water

b)

Light

c)

Copper

d)

Air (gas)

50.

Which of these two waves has a larger wavelength?

a)

Low-frequency wave

b)

High-frequency wave

51.

Which of these two waves carries more energy?

a)

Low-frequency wave

b)

High-frequency wave

52.

How many crests does the high-frequency wave have?

a)

2

b)

4

c)

6

d)

8

53.

Why can't sound travel in space?

a)

There's no medium for it to travel through

b)

Space is too cold

c)

There isn't enough mass in space

d)

There is, we just don't hear it

54.

Waves carry energy, but not _____________.

a)

Matter

b)

Waves

c)

Light

d)

Sound

55.

Which option below is an example of an electromagnetic wave?

a)

Light

b)

Sound

c)

Water

56.

Bruce plays his violin every Friday night for the symphony. Before he plays, he plucks each string to see if his violin is in tune. Which is MOST responsible for the generation of sound waves from his violin?

a)

composition of the string

b)

movement of the violin

c)

vibrations of the string

d)

material of the violin

57.

During a 4th of July celebration, scientists were measuring sound waves as the fireworks exploded. Which illustration indicates that the fireworks were becoming louder?

a)
b)
c)
d)
58.

This illustration shows a sound wave traveling from a tuning fork through a medium.

a)

X represents the rarefactions; Y represents the wavelength

b)

X represents the compressions; Y represents the wavelength

c)

X represents the rarefactions; Y represents the compressions

d)

X represents the compressions; Y represents the rarefactions

59.

The MOST likely reason sound travels faster in salt water than in fresh water is that salt water

a)

reflects sound better.

b)

has a higher density.

c)

absorbs heat faster.

d)

is more elastic.

60.

Sound waves travel the fastest through dense materials. Through which of these would sound waves travel the SLOWEST?

a)

water

b)

metal

c)

glass

d)

air

61.

Campers shouted toward a canyon wall. What characteristic of sound BEST explains why the campers heard an echo?

a)

Sound waves were refracted around the canyon.

b)

Sound waves reflected off the canyon wall.

c)

Sound waves were absorbed by the canyon wall.

d)

Sound waves traveled slowly down the canyon.

62.

Which of these BEST describes frequency?

a)

the bending of light as it passes through substances

b)

the number of vibrations per unit of time

c)

the energy that bounces off an object

d)

the loudness of a sound

63.

A science class is divided into 2 groups. The first group plays loud music in a room that has thick carpet on the ceiling, walls, and floor. The second group is outside of the room but does not hear the music because the sound was

a)

amplified by the carpet

b)

reflected by the carpet

c)

refracted by the carpet

d)

absorbed by the carpet

64.

Which type of wave can travel through empty space?

a)

sound waves

b)

electromagnetic waves

c)

spring waves

d)

water waves

65.

Which of the following is transferred during the movement of a wave?

a)

speed

b)

mass

c)

matter

d)

energy

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