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Heat transfer review

Total questions: 20

Worksheet time: 17mins

Name
Class
Date
1.

Energy that transfers from high temperature to low temperature is called (a)  

2.

A person is stuck in snow. What will happen?

a)

Heat moves from snow to person.

b)

Cold moves from snow to person.

c)

Heat moves from person to snow.

d)

Both the person and snow lose heat.

3.

Something that allows heat to easily move is called a (a)   (conductor/insulator)

4.

Heat was lost from two cups and the temperature of each cup is graphed below. Which cup is a better insulator?

a)

Red cup

b)

Blue Cup

5.

Heat transfer by a circulating liquid or gas is (a)   (conduction / convection / radiation)

6.

Heat transfer by light or other electromagnetic waves is called (a)   (conduction / convection / radiation)

7.

Heat transfer by direct contact of the particles of matter is called (a)   (conduction / convection / radiation)

8.

Heat transfers from hot to cold until the objects reach_________ (select TWO ANSWERS)

a)

A high temperature

b)

A low temperature

c)

An equal and middle temperature.

d)

Thermal equilibrium

9.

Which object will have molecules with higher average kinetic energy?

a)

a 100°C cup of water

b)

a 60° cup of water

c)

A 80° pool of water

d)

A block of ice.

10.

How does the thermal energy of a cup of milk compare to a bottle of milk if they are at the same temperature?

a)

They have the same thermal energy.

b)

They would both have no thermal energy.

c)

The cup has more thermal energy.

d)

The bottle has more thermal energy.

11.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
12.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
13.
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
a)
Hotter to colder
b)
Colder to hotter
c)
Hotter to hotter
d)
Colder to colder
14.

What type of thermal energy transfer is number 1 pointing to?

a)

Convection

b)

Conduction

c)

Radiation

d)

Insulation

15.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
16.
7. All phase changes (changing states) requires energy to be added or taken away.
a)
True
b)
False
17.

Which phase changes require adding heat to a substance. Select ALL THAT APPLY.

a)

Melting

b)

Evaporating

c)

Freezing

d)

Condensing

e)

Boiling

18.

Look carefully at the image. Which glass of milk has the most thermal energy?

a)

A

b)

B

c)

They have equal amounts of thermal energy.

19.

What happens when molecules reach absolute zero?

a)

The molecules move and stop alternately.

b)

The molecules stop moving.

c)

The molecules start moving.

d)

The molecules continue to move.

20.

The __________ scale is based on where water freezes at 0 and boils at 100.

a)

Rankine

b)

Fahrenheit

c)

Celsius

d)

Kelvin