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Heat Transfer And Conduction, Convection, And Radiation
Test Description: Heat Transfer
Instructions: Answer all questions to get your test result.
1) Conduction is the transfer of energy by
A
space beams
B
the difference of densities
C
objects (molecules) touching
D
the traveling of waves
2) What is it called when cold air falls down and warm air pushes up?
A
conduction
B
radiation
C
hippity hoppity
D
convection
3) What is the process called when warm air in our atmosphere moves from one place to another?
A
space stuff
B
radiation
C
convection
D
conduction
4) Which process occurs because of a difference of density between hot air and cold air?
A
density
B
convection
C
radiation
D
conduction
5) What method of heat transfer doesn't need molecules. It can travel in waves through outer space?
A
radiation
B
conduction
C
laser beams
D
convection
6) The hotter the material, the _____ it's particles are moving
A
slower
B
faster
7) Which is the best example of conduction?
A
Water in a well-built thermos takes hours to cool.
B
You swim in a lake and notice in some areas, the water is warm but in others it's cold.
C
You get a sun burn from sitting in the sun all day.
D
Hot cement burns your feet at the pool
8) Which is the best example of convection?
A
Water in a well-built thermos takes hours to cool.
B
You get a sun burn from sitting in the sun all day.
C
You take a sip of hot soup and burn your tongue.
D
Hot magma rises, and cool magma falls in the Earth
9) Which is the best example of radiation?
A
Warm air rises in the room
B
A pancake cooks on a griddle
C
A cat warms itself in front of the fire
D
A spoon warms up in a cup of hot coffee
10) Which is the best example of conduction?
A
butter melting in the microwave
B
a hot air balloon rising
C
getting a sunburn
D
a chair warming after it is sat in for a whole class period
11) Which is the best example of convection?
A
getting a sunburn
B
a chair warming after it is sat in for a whole class period
C
bacon cooking in a pan
D
a hot air balloon rising
12) Why do we use wood or plastic for the handle of frying pans?
A
What? Frying pans have handles?
B
because wood and plastic are poor conductors of heat
C
because it looks really neat
D
because it keeps wood and plastic companies in business
13) Heat always moves from the _______ object to the ________ object in a system.
A
little, big
B
big, little
C
cool, hot
D
hot, cool
*select an answer for all questions
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