WorksheetsUnit 4 Energy Test Review
Total questions: 65
Worksheet time: 59mins
Name
Class
Date
1.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
2.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
3.
What heat transfer happens when you burn your hand by touching a fire?
a)
Radiation
b)
Conduction
c)
Convection
d)
I don't know!!!!!!!!!!!
4.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
5.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
6.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
7.
Transfer of thermal energy through "space"
a)
conduction
b)
convection
c)
radiation
8.
A toaster toasting bread is an example of
a)
condensation
b)
conduction
c)
convection
d)
radiation
9.
What happens when ice cubes melt in a glass?
a)
Heat travels from the ice to the warmer water.
b)
No energy is transferred.
c)
Heat is transferred from the warmer water to the ice cubes.
d)
The water warms up due to the humidity
10.
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
11.
Which of the following shows an energy transformation from chemical energy to electrical to light energy?
a)
A bolt of lightning lights the night sky.
b)
A candle glows brightly in the dark.
c)
A fire in a fireplace lights up a room.
d)
A battery causes a flashlight to shine.
12.
What energy transformations take place when a battery-operated radio is in use?
a)
Electrical to chemical to light
b)
Sound to chemical to mechanical
c)
Chemical to electrical to sound
d)
Light to electrical to thermal
13.
People get energy from the food that they eat and transform that energy as they move. Which energy transformations occur as a student rapidly rubs the palms of his hands together?
a)
mechanical to thermal to electrical
b)
chemical to mechanical to thermal
c)
mechanical to chemical to sound
d)
chemical to sound to electrical
14.
A television works by transforming electrical energy into what other kinds of energy?
a)
Light, thermal, and sound
b)
Thermal, chemical, and solar
c)
Sound, mechanical, and electrical
d)
Light, chemical, and mechanical
15.
What is the best example of a machine that converts electrical energy into kinetic energy and sound energy?
a)
an electric toothbrush
b)
a toaster
c)
a flashlight
d)
an iron
16.
What best describes the energy conversion that occurs when you turn on a hair dryer?
a)
electric to kinetic to thermal and sound
b)
chemical to thermal to light and sound
c)
nuclear to electrical to thermal and sound
d)
kinetic to light to thermal and sound
17.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
18.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
19.
When plants convert the sun's energy into food, which type of energy is it?
a)
kinetic
b)
chemical
c)
thermal
d)
radiant
20.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
21.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
22.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
23.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
24.
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
25.
Wind turbines and windmills convert what energy to another?
a)
Kinetic to electric
b)
Gravitational potential to electric
c)
Mechanical to potential
d)
Thermal to sound
26.
What machine changes electrical energy into light and sound energy?
a)
battery
b)
lightbulb
c)
alarm clock
d)
apple
27.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
28.
a)
Sound Energy
b)
Light Energy
c)
Heat Energy
29.
a)
Sound Energy
b)
Light Energy
c)
Heat Energy
30.
The energy caused by an object's vibrations
a)
chemical
b)
light
c)
sound
31.
Heat energy is also called
a)
electrical energy
b)
chemical energy
c)
light energy
d)
thermal energy
32.
Sound energy needs a
a)
medium (matter)
b)
vacuum
c)
chemical
d)
light
33.
The sun uses this type of energy to make light and thermal energy (heat)
a)
electrical
b)
nuclear
c)
sound
d)
chemical
34.
Which type of energy is best seen in the picture?
a)
chemical
b)
heat
c)
light
d)
electrical
35.
What type of energy is seen here?
a)
chemical energy
b)
heat energy
c)
mechanical energy
d)
potential energy
36.
Energy that we can hear is called
a)
light energy
b)
sound energy
c)
mechanical energy
37.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
38.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
39.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
40.
Blow drying your wet hair.
a)
conduction
b)
convection
c)
radiation
41.
Which direction will the heat flow while this person holds a hot cup of tea?
a)
from the cup to her hand
b)
from her hand to the cup
c)
no heat is transferred
42.
Which direction will the heat flow while this ice cap melts?
a)
there is no heat transfer
b)
from the icecap to the water
c)
from the water to the icecap
43.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
44.
In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.
a)
conduction
b)
convection
c)
radiation
45.
Johnny accidentally grabbed the handle of the hot pot.
a)
conduction
b)
convection
c)
radiation
46.
The warm air from this heater creates a current when the warm air rises and the cold air sinks.
a)
conduction
b)
convection
c)
radiation
47.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
48.
Poor conductors like wood and plastic are called:
a)
conductors
b)
insulators
c)
burners
49.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
50.
Which of the following is needed for convection to happen?
a)
Fluid/s
b)
Light in the form or rays
c)
Electromagnetic waves
d)
Fire
51.
What form of energy is being used when a person hits a tennis ball with a tennis racket?
a)
thermal energy
b)
sound energy
c)
light energy
d)
mechanical energy
52.
What type of energy increases as molecules move faster?
a)
mechanical energy
b)
electrical energy
c)
thermal energy
d)
sound energy
53.
How does heat always transfer?
a)
from cold to hot
b)
from hot to cold
c)
from liquid to solid
d)
from gas to liquid
54.
What type of heat transfer does this picture represent?
a)
radiation
b)
conduction
c)
convection
d)
sunburns
55.
What type of heat transfer does this picture represent?
a)
radiation
b)
conduction
c)
convection
d)
hot air balloons
56.
What is the power source in the picture?
a)
battery
b)
copper wire
c)
switch
d)
light
57.
Look at the picture below. Which part of the lamp system could be removed and the lamp still work?
a)
The lamp shade
b)
The electrical cord
c)
The light bulb
d)
The wall outlet
58.
What form of energy is being used when a person pushes heavy boxes across the floor?
a)
Electrical energy
b)
Mechanical energy
c)
Heat energy
d)
Sound energy
59.
Which statement is true about the picture?
a)
The metal pan causes the water to boil.
b)
The metal pan is a poor conductor of heat.
c)
The wooden handle is a good heat insulator.
d)
The wooden handle is a good heat conductor.
60.
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?
a)
Sound energy
b)
Light energy
c)
Thermal energy
d)
Mechanical energy
61.
Which form of energy is produced when a guitar string vibrates?
a)
Sound energy
b)
Electrical energy
c)
Chemical energy
d)
Light energy
62.
Form of energy that is made by vibrations and requires a medium (such as air, water, or solids) in order to travel.
a)
Thermal
b)
Mechanical
c)
Sound
d)
Electrical
63.
The total kinetic (motion) energy of the tiny particles that make up matter.
a)
Sound
b)
Thermal
c)
Chemical
d)
Light
64.
A form of energy produced through reactions that occur in chemical compounds as they react to each other or to some action.
a)
Chemical
b)
Thermal
c)
Light
d)
Mechanical
65.
A form of energy made available by the flow of electric charge through a conductor.
a)
light
b)
thermal
c)
sound
d)
electrical
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