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Thermal Energy

Total questions: 24

Worksheet time: 22mins

Name
Class
Date
1.
As the thermal energy of a substance increases, its particles spread out and the substance expands.
a)
True
b)
False
2.
The particles of a gas move ____than the particles of the same substance in the liquid or solid state.
a)
faster
b)
slower
c)
same speed
3.
How does air travel?
a)
they don't travel
b)
hot to cold
c)
cold to hot
d)
All of the above
4.
Why is there more thermal energy in an iceberg than in a pot of boiling water?    
a)
a.  The pot insulates the heated molecules
b)
b.  Most icebergs are fairly warm to the touch
c)
  c.  Icebergs contain many more molecules than pots of water
d)
  d.  Water does not hold heat very well
5.

Kinetic Energy is the energy of _________

a)

thermal

b)

movement

c)

potential

d)

atoms

6.

Temperature is the __________ _________ energy of moving particles

a)

average potential

b)

average kinetic

c)

total potential

d)

total kinetic

7.

Objects with MORE MASS have______________

a)

lower potential energy

b)

lower number of atoms

c)

higher thermal energy

d)

higher temperature

8.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

9.

As temperature increases, molecules _____________

a)

move slower

b)

move the same

c)

move faster

d)

stop moving

10.

Which has more thermal energy?

a)

teaspoon of boiling water

b)

bowl of boiling water

c)

bathtub of boiling water

11.

Thermal energy always moves from hot to cold.

a)

true

b)

false

12.

What is a unit of temperature?

a)

Celsius

b)

Joule

c)

Calorie

d)

Pizza

13.
To measure the temperature difference between two cups of water, you would use a _____.
a)
measuring cup
b)
ruler
c)
thermometer
d)
balance scale
14.

Which choice has the least thermal energy?

a)

bathtub full of warm water

b)

all the water in Earth's oceans

c)

swimming pool full of cool water

d)

cup of hot cocoa

15.

A teacher puts one test tube of 50 degree C liquid and one test tube of 10 degree C liquid into a 20 degree C water bath, as shown in the diagram below. Which of the following diagrams best represents the directions that heat will move when the test tubes are placed into the water bath?

a)
b)
c)
d)
16.
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
17.
When you touch something that feels cold, 
a)
heat from your hand moves into the cold substance.
b)
coldness moves from the cold substance into your hand.
c)
it melts.
d)
it freezes.
18.
You're holding hands with your best friend.  Your friend's hands are REALLY warm and yours are really cold.  After a few minutes, this has changed.  How might you explain what happened?
a)
The cold energy from your hand transferred to your friend's hand through conduction.
b)
The heat energy from your friend's hand transferred to your hand through conduction. 
c)
The cold energy from your hand transferred to your friend's hand through convection.
d)
The heat energy from your friend's hand transferred to your hand through convection.
19.

Heat transfers from an area of ________ temperature to an area of _______ temperature.

a)

high to low

b)

low to high

c)

high to high

d)

low to low

20.
Joints in train tracks are designed with extra space to allow for __________________ in hot weather.
a)
Conduction
b)
Insulation
c)
Thermal Energy
d)
Thermal Expansion
21.

This graphic shows

a)

increasing thermal energy

b)

decreasing thermal energy

22.

The graphic shows

a)

increasing thermal energy

b)

decreasing thermal energy

23.

Increasing the thermal energy to water causes water to

a)

stay in liquid form

b)

change its state to solid ice form

c)

change its state to gas water vapor form

24.

Rigoberto put a heat pack on his cold feet. What will most likely be the result?

a)

The cold from Rigoberto's feet will be radiated into the heat pack.

b)

The warmth of the heat pack will be radiated onto Rigoberto's feet.

c)

The cold from Rigoberto's feet will be conducted into the heat pack.

d)

The warmth of the heat pack will be conducted onto Rigoberto's feet.

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