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Review: Thermal Energy

Total questions: 49

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

The total energy of all the particles in a substance is called

a)

Temperature

b)

Thermal energy

c)

Degrees

d)

Mass

2.

The more particles a substance has at a given temperature,

a)

The higher its temperature

b)

The more thermal energy it has

c)

The more degrees it has

d)

The more kelvin it has

3.

The movement of thermal energy from a warmer object to a cooler object is called

a)

Heat

b)

Temperature

c)

Motion

d)

Momentum

4.

Heat is transferred from one particle of matter to another without the movement of matter itself in a process called

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

5.

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

6.

The transfer of energy by electromagnetic waves is called

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

7.

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

8.

Because a bath has more molecules, it has more __________ than a teacup at the same temperature.

a)

Heat

b)

Thermal energy

c)

Potential energy

d)

Degrees

9.

The handle of a spoon in a bowl of soup becomes warm due to heat transfer by the process of

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

10.

Stars transfer thermal energy by the process of

a)

Conduction

b)

Convection

c)

Radiation

d)

Insulation

11.

Which of the following is the best example of heat being transferred by conduction?

a)

ocean currents moving warm water to cold water

b)

mountain boulders warming up in bright sunlight

c)

rocks buried in sand absorbing heat from surrounding sand

d)

air masses moving from high-pressure to low-pressure regions

12.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
13.

What letter is used to represent specific heat capacity?

a)

H

b)

P

c)

C

d)

T

14.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
15.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
16.
The symbol for specific heat is .......
a)
c
b)
Q
c)
m
d)
t
17.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
18.
What  is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC
19.
___________ is measured by the unit Joules.
a)
Heat energy
b)
Temperature
c)
Specific heat
20.
The temperature of an unknown piece of metal with a mass of 30.00 g changes from 25.0 °C to 35.0 °C when the metal absorbs 350.0 J of energy. What is the specific heat of the metal?
a)
1.17 J/g°C
b)
-1.17 J/g°C
c)
0.857 J/g°C
d)
-0.857 J/g°C
21.
Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?
a)
Water
b)
Wood
c)
Both are same
22.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
23.
Energy is transferred as heat between two objects of ___________ temperatures. 
a)
differing
b)
same
24.
As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.
a)
increases
b)
decreases
25.
The energy transferred between the particles of two objects because of the temperature difference between the two objects is called ________________.
a)
heat
b)
insulator 
c)
conductor 
d)
temperature
26.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
27.
If the particles of two substances have the same average kinetic energy, then___.
a)
the specific heats of the substances are identical 
b)
the particles will not react chemically
c)
the substances have equal thermal energies
d)
the substances have equal temperatures
28.
What is thermal equilibrium?
a)
When two objects are at rest at the same time.
b)
When two or more objects reach a common temperature.
c)
When two objects have the same specific heat.
29.
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
30.
Which state of H2O  has the greatest entropy?
a)
Ice
b)
Water
c)
Vapor
31.
Which statement is true about the ENTROPY?
a)
Entropy refers to DISORDER, the unusable energy that escapes a system.
b)
Entropy refers to the balance of temperature among two or more systems.
c)
Entropy refers to the average kinetic energy of the molecules.
d)
Entropy refers to the inability to destroy or create energy. 
32.
The first law of thermodynamics is a restatement of the
a)
Zeroth law of thermodynamics
b)
law of heat addition
c)
principle of entropy
d)
conservation of energy
33.
A(n) _____________ is a device for measuring temperature.
a)
thermometer
b)
barometer
c)
anemometer
d)
psychrometer 
34.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
35.
Calorimeters use insulating materials to:
a)
encourage affordable materials in science experiments in schools.
b)
preserve the heat of the environment outside the Styrofoam cup.
c)
prevent heat from escaping to the environment.
d)
keep the liquid inside the Styrofoam cup from overheating.
36.
A metal cube at temperature of 10°C immersed in a liquid at temperature of 70°C.
What is the temperature of the metal cube when thermal equilibrium is achieved between the cube and the liquid?
a)
Between 10°C and 70°C
b)
More than 70°C
c)
Less than 10°C
d)
Same as the room temperature
37.

A metal cube at temperature of 70°C is immersed in water at temperature of 20°C. The metal _______ heat while the water __________ heat.

a)

gains, loses

b)

loses, gains

38.

Name the device used to measure the changes in thermal energy.

a)

calorie

b)

specific heat

c)

calorimeter

d)

styrofoam cup

39.

How is energy from the Sun transferred?

a)

by radiation

b)

by conduction

c)

by convection

d)

by the force of gravity

40.

__________ is the transfer of heat by the movement of a fluid.

a)

Conduction

b)

Convection

c)

Radiation

41.

When you heat up an object, the particles in the object move _________.

a)

faster

b)

the same speed

c)

slower

42.

_____________, convection, and conduction are the three types of heat transfer.

a)

Conveyance

b)

Radiation

c)

Translocation

43.

Hot water rises and cold water sinks. Is this:

a)

Convection

b)

Conduction

c)

Radiation

44.

A spoon in a cup of hot soup becomes warmer

a)

Convection

b)

Conduction

c)

Radiation

45.

Grilling Hamburgers OVER a charcoal flame.

a)

Convection

b)

Conduction

c)

Radiation

46.

A hot air balloon rises because of

a)

Convection

b)

Conduction

c)

Radiation

47.

A raw egg begins to fry as it hits a heated frying pan

a)

Convection

b)

Conduction

c)

Radiation

48.

The Law of Conservation of Energy states that

a)

energy is always created and destroyed.

b)

energy is neither created or destroyed, it just moves and transforms.

c)

energy is always created; but never destroyed or transformed.

49.

In convection currents, the _____________ part rises and the _____________ part sinks.

a)

warm, cool

b)

cool, warm

c)

cold, hot

d)

cold, cold

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