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WorksheetsConceptual Physics Ch 22 Heat Transfer
Total questions: 66
Worksheet time: 51mins
Name
Class
Date
1.
True or false: Heat moves from the cooler object to a warmer object
a)
True
b)
False
2.
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
3.
Heat is transferred by _________, convection, and radiation.
a)
thermal energy
b)
waves
c)
conduction
d)
radiant energy
4.
When heat is transferred by the movement of currents within a fluid it is called
a)
conduction
b)
convection
c)
radiation
5.
The transfer of energy by electro-magnetic waves is called
a)
conduction
b)
convection
c)
radiation
6.
Identify the heat transfer occurring in this picture
a)
conduction
b)
convection
c)
radiation
7.
Identify the heat transfer happening in this image
a)
conduction
b)
convection
c)
radiation
8.
A material that conducts heat well is called a(n)
a)
conductor
b)
insulator
9.
A material that does not conduct heat well is called a(n)
a)
conductor (ex. spoon, metals)
b)
insulator (ex. wood, wool, straw, paper)
10.
This is an example of a(n)
a)
conductor of heat
b)
insulator
11.
This is an example of a(n):
a)
conductor of heat
b)
insulator
12.
What is a transfer of energy through colliding particles?
a)
Convection
b)
Heat
c)
Conduction
d)
Radiation
13.
Which of the following is the sun's rays reaching the earth?
a)
radiation
b)
convection
c)
conduction
d)
insulator
14.
Which of the following is cooking on a frying pan?
a)
radiation
b)
convection
c)
conduction
d)
insulator
15.
Which of the following is in a swimming pool who's water at the top is warmer than on the bottom?
a)
radiation
b)
convection
c)
conduction
d)
insulator
16.
All atoms are vibrating, hot atoms have more energy. When hot atoms bump into cold atoms they transfer energy.
a)
True
b)
False
17.
Conduction transfers heat by atoms colliding and transferring energy.
a)
True
b)
False
18.
Conduction transfers heat through air waves.
a)
True
b)
False
19.
Convection currents can only happen in gases or liquids but not in solids because solids can't move.
a)
True
b)
False
20.
Dark objects reflect radiation.
a)
True
b)
False
21.
Heat always transfers from hot to cold.
a)
True
b)
False
22.
Heat transfer continues until both objects are at equal temperatures.
a)
True
b)
False
23.
Most metals are bad conductors.
a)
True
b)
False
24.
How is the teapot being heated?
a)
condensation
b)
conduction
c)
convection
d)
radiation
25.
How is the cat being heated?
a)
condensation
b)
conduction
c)
convection
d)
radiation
26.
Which method of energy transfer does not involve movement of matter?
a)
convection
b)
conduction
c)
radiation
d)
None of the above
27.
A cold-blooded reptile basks on a warm rock in the sun. Its body is warmed by
a)
Radiation
b)
Conduction
c)
Convection
d)
Both (a) and (b)
28.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
29.
When you pick up an ice cube, you experience the flow of coldness from the ice cube to your hand.
a)
True
b)
False
30.
All of the following are good conductors of heat EXCEPT _____.
a)
air
b)
copper
c)
silver
d)
iron
31.
Energy from the sun travels to Earth as _____.
a)
chemical energy
b)
combustion
c)
mechanical energy
d)
radiant energy
32.
Through which of the following will convection most likely occur?
a)
liquids and gases
b)
solids an dliquids
c)
solids
d)
solids and gases
33.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
34.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
35.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
36.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
37.
Temperature is _________________.
a)
how hot or cold something is.
b)
the sum of all the energy in a system.
c)
the degree to which you can measure.
d)
a measure of the average kinetic energy of all the particles in an object/substance.
38.
Heat is _________________.
a)
how hot or cold something is.
b)
the sum of all the kinetic and potential energy of the particles in an object.
c)
the flow of energy from a warmer object to a cooler object.
d)
A measure of the average kinetic energy of all the particles in an object.
39.
The SI unit for temperature is _____.
a)
Farenheight
b)
Celsius
c)
Kelvin
d)
Degree
40.
A material that flows is a _______.
a)
Solid
b)
Liquid
c)
Gas
d)
Fluid
41.
As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.
a)
increases
b)
decreases
42.
The measure of average kinetic energy of all the particles within an object is called ____________.
a)
temperature
b)
conduction
c)
radiation
d)
heat
43.
The temperature at which an object's energy is minimal is called ____________.
a)
absolute zero
b)
minimum temperature
c)
zero
44.
Absolute zero is...
a)
-273º C
b)
0º C
c)
-373º C
d)
273º C
45.
Absolute zero is...
a)
0º C
b)
0º F
c)
0º K
d)
0º O
46.
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.
47.
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.
48.
If two objects have the same temperature then they must contain the same amount of thermal energy.
a)
True
b)
False
49.
True/False: a good conductor of heat usually composed of atoms with tightly-bound electrons.
a)
True
b)
False
50.
Firewalkers who walk barefoot on red-hot wooden coals depend on...
a)
mind over matter
b)
wood's poor conductivity
c)
pure chance
d)
magic
51.
Temperature is the same thing as heat.
a)
TRUE
b)
FALSE
52.
During the day, breezes go toward the
a)
shore
b)
ocean
c)
wherever you are standing
d)
straight up
53.
At night, the breezes go toward the
a)
shore
b)
water
c)
wherever you are standing
d)
straight up
54.
Planet Earth loses energy primarily by
a)
conduction
b)
radiation
c)
convection
d)
all three methods
55.
In a florist's greenhouse, glass acts as a one-way valve, letting
a)
high-frequency light in and preventing low-frequency radiation from escaping.
b)
low-frequency light in and preventing high-frequency radiation from escaping.
c)
neither option is what happens
56.
A piece of metal will feel colder than a piece of wood at the same temperature. Why?
a)
Metal atoms are moving more slowly, on the average, than wood atoms.
b)
Metals, in general, are good heat conductors.
c)
Metals are colder than wood.
d)
Wood, in general, is a poor insulator.
57.
Which temperature scale labels the freezing point of water at 0 degrees?
a)
Celsius
b)
Caloric
c)
Kelvin
d)
Fahrenheit
58.
You are feeling sick, so you place a thermometer under your tongue to check your temperature. The directions on the box tell you to leave the thermometer there for three minutes before you read your temperature. Why should you wait?
a)
It takes some time for the thermometer to reach its activation energy.
b)
It takes some time for the thermometer and your body to reach thermal equilibrium.
c)
It takes some time for the thermometer to raise your body’s internal energy.
d)
It takes some time for the thermometer and your body to attain a state of contact.
59.
Objects at low temperatures emit waves with
a)
long, high energy wavelengths
b)
short, high energy wavelengths
c)
long, low energy wavelengths
d)
short, low energy wavelengths
60.
The Earth is warmer at the equator because
a)
the equator is closer to the sun.
b)
the equator is further away from the sun.
c)
the sun is pointing more directly at the equator
d)
the sun is pointing indirectly at the equator.
61.
If you have two liters of boiling water it has _____ compared to one liter of boiling water:
a)
higher temperature, more thermal energy
b)
lower temperature, more thermal energy
c)
same temperature, same thermal energy
d)
same temperature, more thermal energy
62.
Which of the following is not a temperature scale?
a)
Kelvin
b)
Fahrenheit
c)
Celsius
d)
Joule
63.
Winds and weather patterns are good examples of radiation currents.
a)
True
b)
False
64.
Birds fluff out their feathers on a cold day to keep warm because the air pockets act as good insulators.
a)
True
b)
False
65.
The reason you can hold your fingers beside a candle flame without getting hurt is that
a)
air convects heat well.
b)
hot air rises.
c)
air is a poor heat conductor.
d)
explained by all of these options
66.
Light colored objects reflect radiation
a)
True
b)
False
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