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Energy Unit 2023

Total questions: 66

Worksheet time: 53mins

Name
Class
Date
1.
Suppose three people were going sledding. What is one way to increase their potential energy?
a)
Wax the runners on the Wax the runners on the sled.
b)
Pull faster
c)
Find a taller hill
d)
Wait until the snow is deeper.
2.

What type of energy does a burning candle represent?

a)

Thermal

b)

Solar

c)

Potential

d)

Mechanical

3.
Animals use energy from food to move. What type of energy transformation is occurring?
a)
Mechanical to chemical
b)
Chemical to mechanical
c)
Heat to mechanical
d)
Thermal to mechanical
4.
The Law of Conservation of energy states that energy cannot be _____ or ______.
a)
Created; transformed
b)
Transformed; destroyed
c)
Created; destroyed
d)
Kinetic; potential
5.
On A recent camping trip, Destiny was making smores by the campfire and was using a metal stick to roast the marshmallows. When she placed the stick in the fire, it became too hot to hold. What type of heat energy transfer was occurring?
a)
Conduction
b)
Convection
c)
Radiation
d)
Thermal
6.
The sun provides heat and light energy to Earth. How is the heat transmitted?
a)
Solar
b)
Conduction
c)
Radiation
d)
Convection
7.
Sebastion and his brother have bunk beds in their bedrooms. Sometimes Sebastion, in the upper bunk, gets much warmer than his brother in the lower bunk. What type of energy transfer does this illustrate?
a)
Conduction
b)
Convection
c)
Radiation
d)
Thermal
8.
There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?
a)
Large cup (Trenta)
b)
Small cup (Tall)
c)
Venti
d)
All three are the same temperature so they have same thermal energy
9.
If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?
a)
100 mL
b)
1000 mL
c)
They both heat up at the same speed
d)
They cool down.
10.
Heat is a form of _______________.  
a)
movement
b)
energy
c)
melting
11.
The chocolate bunny and the iron.
a)
conduction
b)
convection
c)
radiation
12.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
13.
A measure of the average kinetic energy of the individual particles in an object is called:
a)
thermal energy
b)
conduction
c)
convection
d)
temperature
14.
If you place some Gatorade in a cooler with ice...
a)
It's particles will speed up.
b)
It's particles will slow down.
15.

How does heat flow?

a)

block R to block S

b)

block S to block R

c)

heat does not flow between them

16.

How does heat flow?

a)

object A to object B

b)

object B to object A

c)

heat does not flow between them

17.
A melting ice cube is an example of an object that gains _______________.
a)
water
b)
size
c)
thermal energy
d)
insulation
18.
As the temperature rises, the liquid in the thermometer ____________, or expands, in the tube. 
a)
moves up
b)
moves down
19.

Sam placed a glass of water in the refrigerator. After about an hour he took it out and found it to be colder.

What is the most likely thing that happened?

a)

the cold that was in the refrigerator transferred into the water

b)

the particles in the water started to move faster

c)

the cold from the refrigerator radiated into the glass

d)

the heat that was in the water transferred out into the refrigerator

20.

Which material would make the best insulator?

a)

rubber

b)

steel

c)

copper

d)

aluminum

21.

Hot water rises and cold water sinks. Is this:

a)

Convection

b)

Conduction

c)

Radiation

22.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
23.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
24.
When a substance melts, the kinetic energy _____________.
a)
decreases
b)
stays the same
c)
increases
d)
decreases then increases
25.
What is the energy that an object has because it is moving?
a)
kinetic
b)
potential
c)
electric
d)
wind
26.
2. A change of state from a liquid to a solid is called....
a)
Melting
b)
Freezing
c)
Evaporation
27.
Change from gas to liquid...
a)
condensation
b)
evaporation
c)
expansion
d)
movement
28.
Change from Liquid to Solid is call......
a)
fusion
b)
Freezing
c)
sublimation
d)
evaporation
29.

Which letter represents particles in solid form?

a)

A

b)

B

c)

C

d)

D

e)

E

30.

Between which points is the temperature of the substance remaining constant? (Diagram F)

a)

A-B only.

b)

A-B, C-D, E-F

c)

B-C only.

d)

B-C, D-E

31.

What ball has the most potential energy?

a)

same

b)

red

c)

green

d)

9.8 m/s

32.
A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a
a)
lower volume than the wooden block
b)
lower density than the wooden block
c)
higher volume than the wooden block
d)
higher density than the wooden block
33.

Why do ice cubes float in a glass of water?

a)

the ice cubes are more dense than the water

b)

the liquid water is more dense than the ice cubes

c)

the liquid water is more dense than the glass

d)

the ice is more dense than the glass

34.
What is the BEST example of a conductor?
a)
A plastic toy
b)
A wooden table
c)
A styrofoam cup
d)
A metal shed
35.
Why does warm air rise and cool air sink?
a)
Warm air is less dense than cooler air.
b)
Warm air is more dense than cooler air.
c)
Warm air weighs less than cooler air.
d)
Warm air weighs more than cooler air. 
36.

Many objects, such as train tracks and road joints, are specifically designed to allow extra space for ...

a)

thermal energy

b)

specific heat

c)

thermal expansion

d)

conductors

37.
What happens to air particles when they are heated?
a)
Particles move faster and expand
b)
Particles move faster and become closer together.
c)
Particles move slower and the air expands
d)
Particles move faster become further apart
38.
Alex noticed that a metal door that sticks on hot days does not stick when it cools off at night. This is because the metal contracts as it cools. The reason for this is that, as the metal cools, the atoms:
a)
become smaller and take up less space
b)
 slow down and move closer together
c)
merge together to form fewer atoms
d)
speed up and move farther apart
39.

Calculate the change in temp of a cup of water if the INITIAL temp was 60 degrees and the FINAL temp was 40 degrees.

a)

+20 degrees

b)

-20 degrees

c)

100 degrees

d)

-100 degrees

40.

What is the formula for calculating the change in temperature (delta T)?

a)

Final temp- initial temp

b)

Initial temp - final temp

c)

Initial temp + final temp

d)

Initial temp divided by final temp

41.

Energy that is stored in a system or object

a)

Potential Energy

b)

Kinetic Energy

c)

Mechanical Energy

42.

What is happening during melting or boiling where heat is being added but no temperature change is occurring?

a)

Bonds are being broken

b)

Bonds are being formed

43.

Heat capacity depends on:

a)

mass only

b)

volume only

c)

mass and material

d)

material only

44.

In the lab we heated a metal ball and found it did NOT go through the ring after we heated it. What happened to the volume and mass of the metal ball?

a)

Volume increased, mass increased

b)

Volume increased, mass stayed the same

c)

Volume decreased, mass stayed the same

d)

Volume decreased, mass decreased

45.

True or false: Molecules expand when they are heated.

a)

True

b)

False

46.

The molecules of which of the following would have the most kinetic energy?

a)

an ice cube

b)

a glass of cold water

c)

boiling water

d)

a cup of warm tea

47.

Gravitational potential energy depends on the ________ and ________ of the object.

a)

Height and mass

b)

Friction and movement

c)

Mass and volume

d)

Height and volume

48.

At which point is potential energy greatest?

a)

W

b)

X

c)

Y

d)

Z

49.

Which point has the most kinetic energy?

a)

a

b)

f

c)

b

d)

d

50.

Which is an example of radiation?

a)

boiling a pot of noodles for dinner

b)

getting hot from lying in the sun

c)

feeling warm while taking a shower

d)

burning yourself after touching a hot plate

51.
What type of energy resource is wind?
a)
Nonrenewable
b)
Renewable
c)
Exhaustible 
52.
Hyrdo Power is a __________ energy resource.
a)
Renewable
b)
Nonrenewable
53.

What can you claim from the graph?

a)

KE increases as mass decreases

b)

KE increases as mass increases

c)

Nothing

54.

This graph depicts what type of relationship between kinetic and potential energy?

a)

As one goes up the other goes down

b)

Kinetic and Potential Energy are the same.

c)

You always have more potential energy than kinetic.

d)

You always have more kinetic energy than potential.

55.

An amusement park engineer noticed that the roller coaster cart did not make it to the end of the track. He checks and determined that it was not a friction issue with the cart and track. Explain what he needs to do to help the cart reach the end of the track.

a)

Decrease the distance between the first and second hill to build more potential energy.

b)

Add another hill towards the end of the roller coaster to increase the amount of kinetic energy.

c)

Increase the height of the first hill to increase the amount of initial potential energy.

d)

Remove a hill and decrease the added friction at the end of the track.

56.
What happens to the molecules of a solid when it is heated?
a)
Slow down
b)
Speed up
c)
Don't change speed
d)
Shrink
57.
What happens to air particles when they are heated?
a)
Particles move faster and expand
b)
Particles move faster and become closer together.
c)
Particles move slower and the air expands
d)
Particles move faster become further apart
58.

The total amount of Kinetic and Potential energy of all the particles in an object is called:

a)
Thermal Energy
b)
Mechanical Energy
c)
Chemical Energy
d)
Electrical Energy
59.

If your hand feels cold when you touch something what is happening to the particles in your hand?

a)

Particles in your hand are slowing down

b)

Particles in your hand are speeding up

c)

Nothing is happening to the particles in your hand

d)

Particles in your hand are getting numb

60.
You buy a lava lamp from the store. As the lamp heats up, blobs of liquid rise to the top then sink back down to the bottom. This process continues because of _?_.
a)
conduction
b)
convection
c)
radiation
61.

 Taylor and her friend Alex were heating up food in a microwave and it became too hot to eat, so the plate was placed on the counter to cool. Which of the following statements accurately identifies how thermal energy was transferred?

a)

Thermal energy was transferred from the food to the air because food has a higher density than the air. 

b)

Thermal energy was transferred from the food to the air because the temperature of the air was lower than the food. 

c)

transferred? 

A. Thermal energy was transferred from the air to the food because air has a lower density than the food. 

d)

Thermal energy was transferred from the air to the food because the temperature of the food was greater than the air. 

62.

How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?

a)

The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.

b)

The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.

c)

The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.

d)

The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.

63.

A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to

a)

Convection

b)

Conduction

c)

Radiation

d)

Globulation

64.

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

a)

mechanical energy to chemical energy

b)

thermal energy to mechanical energy

c)

chemical energy to mechanical energy

d)

mechanical energy to thermal energy

65.

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

a)

thermal to electrical

b)

mechanical to thermal

c)

electrical to thermal

d)

electrical to sound

66.

What type of energy is stored in batteries or food?

a)

Potential energy

b)

Thermal energy

c)

Chemical energy

d)

Mechanical energy

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