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Thermal Energy

Total questions: 43

Worksheet time: 39mins

Name
Class
Date
1.

Temperature

a)

The total kinetic and potential energy of all the particles in an object.

b)

Energy that is transferred from a warmer object to a cooler object.

c)

A measure of the average kinetic energy of the particles in a substance.

d)

The heating of a substance that causes its particles to move more quickly.

2.

Heat

a)

The total kinetic and potential energy of all the particles in an object.

b)

Energy that is transferred from a warmer object to a cooler object.

c)

A measure of the average kinetic energy of the particles in a substance.

d)

The heating of a substance that causes its particles to move more quickly.

3.

Conduction

a)

The transfer of energy by electromagnetic waves.

b)

A circular motion of air that causes wind and changes in weather

c)

A type of heat transfer that occurs through the movement of fluids.

d)

The transfer of energy from one particle of matter to another within an object or between two objects that are in direct contact.

4.

Convection

a)

The transfer of energy by electromagnetic waves.

b)

A circular motion of air that causes wind and changes in weather

c)

A type of heat transfer that occurs through the movement of fluids.

d)

The transfer of energy from one particle of matter to another within an object or between two objects that are in direct contact.

5.

Radiation

a)

A circular motion of air that causes wind and changes in weather

b)

The transfer of energy by electromagnetic waves.

c)

A type of heat transfer that occurs through the movement of fluids.

d)

The transfer of energy from one particle of matter to another within an object or between two objects that are in direct contact.

6.

Specific Heat

a)

Materials that do not conduct heat well.

b)

A material that conducts heat well,

c)

The amount of energy required to raise the temperature of 1 kilogram of a material by 1 kelvin.

d)

The expansion of matter when it is heated.

7.

Insulators

a)

Materials that do not conduct heat well.

b)

A material that conducts heat well,

c)

The amount of energy required to raise the temperature of 1 kilogram of a material by 1 kelvin.

d)

The expansion of matter when it is heated.

8.
Jenny poured some hot chocolate into a cup and stirred it with a metal spoon.  She noticed the spoon was really warm.  What is the best explanation for this?
a)
The spoon is a conductor.
b)
The spoon reflects heat.
c)
The spoon is an insulator.
d)
She touched the spoon first and waited to touch the cup.
9.
A student was doing a science investigation in school.  Her teacher asked her to fill two beakers with water.  What would be the temperature of the water when it started to boil?
a)
100 degrees celsius
b)
50 degrees celsius
c)
32 degrees celsius
d)
20 degrees celsius
10.
The chart below shows objects that conduct heat and objects that insulate heat. Which answer choice best completes the chart? 
a)
Glass block 
b)
gold ring
c)
plastic spoon
d)
none of the above
11.
Conduction is heat transfer by -
a)
Touch
b)
Circles
c)
Waves
12.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
13.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
14.
The sun warming your skin is an example of heat transfer through 
a)
conduction
b)
convection
c)
radiation
d)
thermal electricity
15.
Radiation is a method of thermal energy transfer that moves -
a)
through empty space.
b)
when objects touch.
c)
only through solids.
d)
in the motion of fluids.
16.
In what direction do hot liquids and gasses move?
a)
Side to Side
b)
Down
c)
Up
d)
Back and Forth
17.

What type of heat transfer takes place in liquids and gasses?

a)

Conduction

b)

Convection

c)

Radiation

d)

Thermal Equilibrium

18.
What type of material makes the best insulators?
a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
19.

Hot things have ____________ thermal energy than cold things

a)

more

b)

less

c)

same

d)

potato

20.

Temperature is a way we ____________ energy

a)

eat

b)

measure

c)

gain

d)

lose

21.
Heat transfer in boiling water.
a)
Conduction
b)
Convection
c)
Radiation
22.
The heat transfer in the image is by
a)
convection
b)
conduction
c)
radiation
23.
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
24.
Heat transfer in wind.
a)
conduction
b)
convection
c)
radiation
25.
When you use a microwave, what is the main way that heat is transferred?
a)
Convection
b)
Conduction
c)
Radiation
26.
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)
It can travel high to low and low to high. 
27.
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.
28.
Which material is the best conductor of heat?
a)
glass
b)
styrofoam
c)
metal
d)
wood
29.
Heat moves easily through materials called ____
a)
Conductors
b)
Insulators
30.
We measure ______ with Celsius or Fahrenheit degrees.
a)
Temperature
b)
Thermometer
c)
Barometer
31.

What is the BEST reason cooking pots are made out of the materials aluminum, copper, and sometimes glass?

a)

They are able to stop the flow of heat.

b)

They are good conductors of heat.

c)

They keep the same amount of heat.

d)

They are good insulators of heat.

32.

If a cup of hot chocolate is put in the microwave, would that add or remove thermal energy to the hot chocolate.

a)

Thermal Energy is Added

b)

Thermal Energy was Removed

33.

If thermal energy is increasing, what is happening to the kinetic energy.

a)

Kinetic energy would be decreasing

b)

Kinetic energy would stay the same

c)

Kinetic energy would be increasing

34.
Why does warm air rise?
a)
Because it's less dense than cold air.
b)
Because it's more massive than cold air.
c)
Because it has a smaller volume than cold air.
d)
Because it has more energy than cold air.
35.
What happens inside a thermometer when the temperature goes up?
a)
The heat causes the liquid to become denser.
b)
The heat causes the liquid to expand.
c)
The heat causes the liquid to float.
d)
The heat boils the liquid into a gas.
36.

Cold things often have a _________ kinetic energy because_______

a)

lower; particles are moving around less

b)

lower; particles are moving around more

c)

higher; particles are moving around the same

d)

higher; particles do not move

37.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
38.
A high specific heat means...
a)
It requires less energy to change temperature
b)
It requires more energy to change temperature
c)
It heats up very quickly
39.

What would be the effect on the particles if more heat is supplied to the system? (a)  

Choose from the below words
They would slow down
They would stop moving
They would speed up
There would be no effect
40.

Water boils at 373 __ and freezes at 273 __.

a)

oF

b)

oC

c)

K

41.

Water boils at 212 __ and freezes at 32 __.

a)

oF

b)

oC

c)

K

42.

Water boils at 100 __ and freezes at 0 __.

a)

oF

b)

oC

c)

K

43.

The coldest temperature ever recorded on Earth was -89.2 oC in Antarctica. What is this temperature in oF?

a)

-129.6

b)

-67.3

c)

183.8

d)

-362.2

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