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WorksheetsHeat and Heat transfer
Total questions: 19
Worksheet time: 12mins
Name
Class
Date
1.
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.
2.
What is the definition of CONVECTION
a)
When heat transfers through the heater or AC in your house.
b)
When heat transfers from objects that are touching.
c)
a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
d)
hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
3.
What is the definition of RADIATION
a)
hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
b)
When heat is transferred from objects like rays of light or electromagnetically.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
4.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
5.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
6.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
7.
Walking on the warm sand sand with your bare feet.
a)
conduction
b)
convection
c)
radiation
8.
Blow drying your wet hair.
a)
conduction
b)
convection
c)
radiation
9.
Which direction will the heat flow while this person holds a hot cup of tea?
a)
from the cup to her hand
b)
from her hand to the cup
c)
no heat is transferred
10.
Which direction will the heat flow while this ice cap melts?
a)
there is no heat transfer
b)
from the icecap to the water
c)
from the water to the icecap
11.
Warm air rises and the cool air sinks.
a)
conduction
b)
convection
c)
radiation
12.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
13.
Poor conductors like wood and plastic are called:
a)
conductors
b)
insulators
c)
burners
14.
Carole owns a two story house with a heating and cooling unit on each floor. In the winter she mostly uses the downstairs unit because the volume of warm air __________ and __________ warming the whole house through __________.
a)
expands, rises, convection
b)
expands, sinks, conduction
c)
contracts, rises, conversion
d)
contracts, sinks, contraption
15.
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
a)
Hotter to colder
b)
Colder to hotter
c)
Hotter to hotter
d)
Colder to colder
16.
The kind of heat transfer that travels through space in electromagnetic waves is ______________________.
a)
insulation.
b)
Radiation
c)
Conduction
d)
Convection
17.
Which statement is true?
a)
The quicker a molecule moves, the colder it is.
b)
The slower a molecule moves, the warmer it is.
c)
The quicker a molecule moves, the warmer it is
d)
The movement on molecule don�t affect its temperature
18.
Which of the following is the best example of conduction?
a)
A light bulb warming a lampshade
b)
An egg cooking in a frying pan
c)
Water boiling in a pot
d)
Gases circulating in the atmosphere
19.
What is the reason behind putting the air conditioning unit close to the roof of a room?
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