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Heat, Temperature, Thermal Energy Test

Total questions: 50

Worksheet time: 3hrs 59mins

Name
Class
Date
1.
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.
2.
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.
3.
Which of the following sets of tools would be the MOST useful for measuring the transfer rate of thermal energy in four different liquids -
a)
Triple-beam balance, beakers, metric ruler
b)
Hot plate, beakers, thermometers
c)
Microscope, funnel, metric ruler
d)
pH meter, test tubes, forceps
4.
What two kinds of heat transfer are represented?
a)
stove→pot=radiation pot→egg=conduction
b)
stove→pot=conduction pot→egg=radiation
c)
stove→pot=convection pot→egg=conduction
d)
stove→pot=conduction pot→egg=convection
5.
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.
6.
Andy stirred a hot drink in a styrofoam cup with a  metal spoon.  In what order did the thermal energy reach Andy's hand?
a)
cup-hot chocolate-hand
b)
hand-spoon-hot chocolate
c)
hot chocolate-spoon-hand
d)
hot chocolate-spoon-hand-cup
7.
In the winter, some people heat their homes by burning logs in the fireplace.  How does the heat from the fire get to the other side of the room?
a)
it travels through the carpet by conduction
b)
it travels through the air by convection
c)
it travels through the carpet by radiation
d)
it travels with the smoke by condensation
8.
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
9.
The movement of thermal energy from a warmer object to a cooler object is called:
a)
heat
b)
temperature
c)
motion
d)
momentum
10.
No more energy can be removed from matter at:
a)
its freezing point
b)
0°C
c)
absolute zero
d)
273 K
11.
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
12.
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
13.
The temperature of a substance increases as___.
a)
the substance expands
b)
the average kinetic energy of its particles increases
c)
the substance's volume increases
d)
the substance's mass increases
14.
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.
15.

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

a)

one reaches a temperature of zero

b)

they both have an equal temperature

c)

one runs out of energy

16.

When a popsicle melts, the particles in the popsicle _____.

a)

gain thermal energy and speed up

b)

there are no particles in popsicles

c)

lose thermal energy and slow down

d)

stay the same

17.
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
18.
Energy is measured in units called.....
a)
pounds
b)
meters
c)
horsepower
d)
joules
19.
The amount of energy required to raise the temperature 1ºC for every kilogram is called____?
a)
Thermal Energy
b)
Specific Heat
c)
Temperature
d)
Kinetic Energy
20.
What is the equation to measure change in Thermal Energy?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ∆mct
d)
m=QC
21.
Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
22.

The unit for specific heat is

a)

J

b)

J/g °\degree C

c)

g

d)

°C\degree C

23.
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 
a)
-80,371.2 J
b)
44,938.6 J
c)
80,371.2 J
d)
112,575.9 K
24.
A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?
a)
25 g
b)
30 g
c)
20 g
d)
50 g
25.
You have 20 g of water with specific heat of 4.18 J/gŸ°C.  The temperature changes from 25° C to 20° C.  How much heat energy (Q) moves from the water to the surroundings?
a)
418 Joules
b)
209 J
c)
83 J
d)
4.18 J
26.

Solar Energy is created by what?

a)

Moon

b)

Sun

c)

Wind

d)

Water

27.

Solar Cells convert light into electricity?

a)

True

b)

False

28.

What heat transfer method is used by the Sun to transfer the heat from its core to its surface?

a)

conduction

b)

convection

c)

radiation

29.
A(n) _____________ is a device for measuring temperature.
a)
thermometer
b)
barometer
c)
anemometer
d)
psychrometer 
30.
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
31.
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
32.
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.
33.
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
34.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
35.

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

36.

YOU HAVE TIME!

How much energy is needed to raise the temperature of a 20.0g piece of copper from 15.0 degrees Celsius to 25.0 degrees Celsius? (The specific heat of copper is 0.385 J/g C)

a)

20 X (25-15) =70 J

b)

20 X .385 X (25-15)= 77 J

c)

20 X .385 X (15-25)= 62 J

d)

20 X .385 X (15-0)= 77 J

37.

Fahrenheit scale

a)

The temperature scale that is used only in America and 2 countries in the Caribbean.

b)

The temperature scale that has water freeze at zero degrees and boil at 100 degrees

c)

The temperature scale that has water freeze at 273 K and boil at 373 K.

38.

Celsius Scale

a)

water freezes at 0 degrees and boils at 100 degrees

b)

water boils at 212 degrees and freezes at 32 degrees

c)

Water boils at 273 degrees and boils at 373 degrees

39.

Convert 30°C to Fahrenheit (1.8 x C) + 32

a)

860°F

b)

86°F

c)

63.8°F

d)

56°F

40.

Which of the follow represents a normal body temperature of 98.6°F in °Celsius?

5/9 x (F - 32)

a)

37°C

b)

370°C

c)

72.5°C

d)

72.6°C

41.

Convert 0°C to Fahrenheit (1.8 x C) + 32

a)

0°F

b)

1.8°F

c)

32°F

d)

3.2°F

42.

Convert -30°C to Fahrenheit (1.8 x C) + 32

a)

-22°F

b)

22°F

c)

-55°F

d)

1.1°F

43.

100 Celsius is ? Kelvin (K = Celsius + 273)

a)

173 K

b)

373K

c)

273 K

d)

0 K

44.
The molecules of a liquid vs. a solid....
a)
Move slower in a liquid.
b)
Move slower in a solid.
45.
The molecules of a gas vs. a solid....
a)
Move faster in a gas.
b)
Move faster in a solid.
46.
The molecules of a liquid vs. a gas...
a)
Move slower in a gas.
b)
Move slower in a liquid.
47.
Convert: 253 C to K:
a)
526 K
b)
625 K
c)
0 K
d)
186 K
48.
Convert: 0 K to C
a)
-273 C
b)
-273 K
c)
273 C
d)
273 K
49.

Convert: 212 F to C:

a)

100 C

b)

100 K

c)

100 F

d)

50 C

50.

Convert: 25.0 oC to oF:

a)

77 F

b)

77 C

c)

100 F

d)

100 C

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