WorksheetsHeat and Temperature
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
2.
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.
3.
What is the definition of CONVECTION
a)
When heat transfers through waves.
b)
When heat transfers from objects that are touching.
c)
warm fluid rises; cool fluid sinks
d)
Heat traveling from the sun
4.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
5.
What is the BEST example of a conductor?
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
6.
An insulator . . .
a)
Allows a lot of heat to escape
b)
Makes the temperature of an object rise
c)
Moves heat from one place to another
d)
Traps heat inside an object
7.
True or False: A thermal conductor transfers heat well between two objects, and the heat does not stay in one place.
a)
True
b)
False
8.
A jacket is a good example of an . . .
a)
Insulator
b)
Investigator
c)
Insider
d)
Interrogator
9.
What is the BEST example of a conductor?
a)
A plastic toy
b)
A wooden table
c)
A styrofoam cup
d)
A metal shed
10.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
11.
Which is a TRUE statement comparing the density of gases and liquids?
a)
Gases have higher density than liquids because the atoms are further apart
b)
Gases have lower density than liquids because the atoms are closer together
c)
Gases have lower density than liquids because the atoms are further apart
d)
Gases have higher density than liquids because the atoms are closer together
12.
As the temperature of a solid or liquid increases, the force of attraction between the atoms/molecules......
a)
increases
b)
decreases
c)
remains the same
13.
Which of the following containers of sand has atoms/molecules with the greatest average kinetic energy?
a)
1 kg at 20oC
b)
2 kg at 20oC
c)
4 kg at 20oC
d)
none has a greater amount because all have the same average kinetic energy
14.
Thermal energy always moves from ___________ to __________.
a)
Hot to Hot
b)
Cold to hot
c)
Warmer to cooler
d)
Cooler to warmer
15.
Why does warm air rise and cool air sink?
a)
Warm air is less dense than cooler air.
b)
Warm air is more dense than cooler air.
c)
Warm air weighs less than cooler air.
d)
Warm air weighs more than cooler air.
16.
When would an object left in a room temperature room stop transferring heat?
a)
When it has reached the same temperature as the room temperature air
b)
When it has lost all of its thermal energy
c)
When it has gained all of the air's thermal energy
d)
When it has gained or lost all of it's coldness to the air
17.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
none of these
18.
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 be
19.
A measure of the average amount of kinetic energy of the particles in the object.
a)
energy
b)
expansion
c)
temperature
d)
heat
20.
The faster molecules move,
a)
the higher the temperature
b)
the less temperature
c)
the same temperature
d)
I don't know
100 %
