WorksheetsThermal Energy Transfers and Conductivity
Total questions: 16
Worksheet time: 14mins
Name
Class
Date
1.
When two materials that are in contact have the same temperature, the materials are said to be in thermal _____.
a)
equilibrium
b)
balance
c)
temperature
d)
density
2.
Heat always moves from _____ objects to _____ objects.
a)
warmer; cooler
b)
cool; hot
c)
cold; hot
d)
cold; cool
3.
Hot water is poured into a mug and the mug gets hot. This is an example of which type of energy transfer?
a)
radiation
b)
conduction
c)
convection
d)
This is not an energy transfer.
4.
Radiation transfers energy by moving matter through direct contact.
a)
True
b)
False
5.
A hot iron is turned off and cools down to room temperature. The iron cools because _____.
a)
the iron does not hold heat very well
b)
the room transfers cold energy to the iron
c)
thermal energy is transferred from the warm iron to the cooler room
d)
the thermal energy is destroyed during an interaction with the room
6.
Which type of energy transfer allows the Sun to warm Earth?
a)
conduction
b)
convection
c)
radiation
d)
transmission
7.
Which type of energy transfer is responsible for the movement of magma in Earth's interior?
a)
conduction
b)
convection
c)
radiation
d)
melting
8.
The measure of the average kinetic energy of the particle of a substance is its
a)
temperature
b)
density
c)
heat
d)
viscosity
9.
What type of material best increases thermal energy in a solar cooker?
a)
cardboard because it absorbs heat
b)
aluminum foil because it reflects heat
c)
aluminium foil because it absorbs heat
d)
cardboard because it reflects heat
10.
Hot objects began to cool as
a)
cooler air is transferred to the hotter object
b)
atoms in the object react with the oxygen in the air
c)
thermal energy in the object is transferred to the surrounding air
d)
thermal energy in the object cancels out energy in the surrounding air
11.
All of the following are good conductors of heat except:
a)
wood
b)
aluminium
c)
copper
d)
silver
12.
A good _____ transfers heat easily.
a)
insulator
b)
conductor
13.
A good _____ does not transfer heat easily.
a)
insulator
b)
conductor
14.
A good insulator _____ transfer heat easily.
a)
does
b)
does not
15.
A good conductor _____ transfer heat easily.
a)
does not
b)
does
16.
Air is a good conductor of heat.
a)
True
b)
False
100 %
