AnswersFL-2003310-Physical Science CRLab: Thermal Energy Transfer

Convection Answers

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Keesha conducts an experiment by pouring equal amounts of boiling water into four containers. The containers are the same size and shape, but they are made of different materials. The chart lists the containers according to their materials.Using protective gloves, Keesha carefully touches each container immediately after pouring the water. Which container was likely the hottest?

Question illustration
A
W
B
X
C
Y
D
Z
2
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Earl is using his hands to hold a metal pan 10 centimeters above a hot burner. How can this scenario be changed to demonstrate conduction between the pan and the burner?

A
increase the temperature of the burner
B
use a glass pan instead of a metal pan
C
use foam potholders to hold the pan
D
touch the pan to the burner
3

Conduction can occur within a single substance, but parts of the substance must have which property?

A
different temperatures
B
different textures
C
different particle sizes
D
different colors
4

How does a foam-filled winter coat help keep a person warm?

A
It slows down the transfer of thermal energy from outside to inside the coat.
B
It slows down the transfer of thermal energy from inside to outside the coat.
C
It speeds up the transfer of thermal energy from outside to inside the coat.
D
It speeds up the transfer of thermal energy from inside to outside the coat.
5

Which explains why conduction is unlikely when ice is placed on a freezer shelf?

A
There is no direct contact.
B
The ice is too cold.
C
The shelf acts as an insulator.
D
The ice and shelf are the same temperature.

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