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Thermal Energy (Physical Science)

Total questions: 42

Worksheet time: 2hrs 37mins

Name
Class
Date
1.

Heat always travels from _____ to ______ objects

a)

hot to cold

b)

cold to hot

c)

cold to cold

d)

hot to hot

2.
This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:
a)
Conduction.
b)
Convection.
c)
Radiation.
3.
Conduction can only occur between two objects when –
a)
one object is less dense than the other.
b)
both objects are in physical contact with each other.
c)
one of the objects is made of a metal.
d)
both objects are exactly the same temperature.
4.

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

a)

heat

b)

temperature

c)

motion

d)

momentum

5.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
6.
This is an example of-
a)
Conduction
b)
Convection
c)
Radiation
7.

Which of the following would be the best insulator?

a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
8.
As you touch a hot stove the heat transfers -
a)
from your hand to the stove
b)
from the stove to your hand
c)
It doesn't transfer
9.

If you touch a cup of ice tea and then a cup of hot chocolate wich one has higher amount of kinetic energy?

a)

The cup of ice tea.

b)

It is possible to define it only with a thermometer.

c)

The cup of hot chocolate.

d)

They have same kinetic energy.

10.
Temperature is a measure of the...
a)
total energy in a substance
b)
total kinetic energy in a substance
c)
average potential energy in a substance
d)
average kinetic energy of molecules in a substance
11.
A slower particle has a lower energy than an identical, faster particle.
a)
True
b)
False
12.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
internal energy
d)
none of these
13.
When thermal energy is added to a substance, the substance's particles move:
a)

More rapidly at an increased distance from each other.

b)
More rapidly with less distance between each other.
c)
More slowly with a greater distance between each other.
d)
More slowly with a reduced distance between each other.
14.
Heat transfer by conduction occurs when...
a)
particles bump into each other
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
15.
Heat transfer by convection occurs when...
a)
electrons bump into other electrons
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
16.
Heat travels from the sun to the earth by the process of...
a)
conduction
b)
convection
c)
radiation
d)
insulation
17.
A substance with a high specific heat:
a)
Is always extremely hot.
b)
Requires a lot of energy to become hot.
c)
Is not heavy.
d)
Does not requires a lot of energy to become hot.
18.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.
19.
The temperature of a glass of cold water will eventually...
a)
Match the temperature of the surrounding environment.
b)
Always be colder than the surrounding environment.
c)
Become warmer than the surrounding environment.
d)
Never change temperature.
20.

Do molecules generally move faster at 45 C or 106 C?

a)

45 C because molecules have more energy than in 106C

b)

106 C because molecules have more energy than in 45C

c)

106 C because molecules have less energy than in 45C

d)

45C because molecules have less energy than in 106 C

21.

When you place the metal in boiling water, heat flows from the _________ to the _______.

a)

metal to the boiling water

b)

bottom of the metal to the top half of the metal

c)

bottom of the water to the top of the water

d)

boiling water to the metal

22.

Specific Heat

a)

the amount of energy it takes to raise one gram of a substance by one degree Celsius

b)

The internal energy of an object

c)

The measure of the kinetic energy of an object's molecules

23.

Conductor

a)

A material that thermal energy travels through easily

b)

A material that energy does NOT transfer through easily

c)

Energy that travels in the form of electromagnetic waves

24.

Insulator

a)

A material the energy does NOT transfer through easily

b)

A material that thermal energy travels through easily

c)

The measure of the kinetic energy of an object’s molecules

25.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed 
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
26.
The amount of thermal energy required to raise the temperature of one (1) kilogram of a substance by 1o C is known as:
a)
Specific heat
b)
Heat of fusion
c)
Heat of vaporization
d)
Melting point
27.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
28.
Stored energy that results from the position or shape of an object is called...
a)
Thermal
b)
Potential
c)
Kinetic
d)
Gravitational
29.

The heat absorbed while a solid is melting is known as....

a)

heat of fusion

b)

heat of solid

c)

heat of liquid

d)

heat of vaporization

30.

Temperature when a substance changes from a solid to a liquid

a)

freezing point

b)

heat of fusion

c)

thermal expansion

d)

melting point

31.

The Temperature when a liquid turns to a solid

a)

freezing point

b)

heat of fusion

c)

thermal expansion

d)

melting point

32.

The amount of heat needed to change 1 gram of a substance from the liquid phase to the gas phase is ___

a)

Heat of Vaporization

b)

Boiling point

c)

Heat Energy

d)

Phase change

33.

Temperature when a substance changes from a liquid to a gas

a)

Heat of Vaporization

b)

Boiling point

c)

Heat Energy

d)

Phase change

34.

As the temperature of a substance increases:

a)

The speed, and average kinetic energy of the particles, both increase.

b)

The speed, and average kinetic energy of the particles, both decrease.

c)

The speed of the particles increases, but the average kinetic energy of the particles decreases.

d)

The speed of the particles decreases, but the average kinetic energy of the particles increases.

35.

The condition where two substances in physical contact with each other exchange no heat energy. They are said to be the same temperature.

a)

Thermal Energy

b)

Cooler to Warmer

c)

Energy Transfer

d)

Thermal Equilibrium

36.

Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 37 degrees. Which direction should the energy transfer between Objects A and B?

a)

From Object A to Object B

b)

From Object B to Object A

c)

Energy will not transfer

d)

Energy will transfer both directions

37.
What are some examples of heat transfer?
a)
conduction
b)
convection
c)
radiation
d)
all of the above
38.
The most common temperature scale used in the world where water freezes at 0 degrees and boils at 100 degrees is called the __________________ scale.
a)
Celsius
b)
Fahrenheit
c)
Pound
d)
Kelvin
39.
Which of the following is NOT true about heat? 
a)
Heat moves from hot to cold
b)
Heat is a form of energy
c)
Heat cannot be transferred
d)
Heat makes molecules speed up 
40.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
41.
Is Wood a conductor or Insulator?
a)
Conductor
b)
Insulator
42.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not

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