WorksheetsThermal Energy and Heat Transfer
Total questions: 11
Worksheet time: 9mins
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 movement of thermal energy from a warmer object to a cooler object is called
a)
heat
b)
temperatur
c)
motion
d)
momentum
3.
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
4.
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
5.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
6.
What happens to particles as they cool down?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
7.
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
8.
Hot objects begin to cool as-
a)
cooler air is transferred to the hot object.
b)
thermal energy in the object is transferred to the surrounding air.
c)
atoms in the object react with the oxygen in the air.
d)
thermal energy in the object cancels out energy in the air
9.
Which sentence explains why a cold metal spoon placed in a pot of boiling water becomes hot?
a)
Thermal energy is transferred from the spoon to the water.
b)
Thermal energy is transferred from the water to the spoon.
c)
Thermal energy in the water is transformed into kinetic energy in the spoon.
d)
Thermal energy in the spoon is transformed into kinetic energy in the water.
10.
Which particles are moving fastest?
a)
Particles in ice.
b)
Particles in boiling water.
c)
Particles in water from the sink.
d)
Particles in steam.
11.
Molecular motion _________ when temperature is increased.
a)
Increases
b)
Decreases
100 %
