WorksheetsHeat Transfer Earth Science
Total questions: 14
Worksheet time: 46mins
Name
Class
Date
1.
This picture shows warm air rising and cool air falling in a cycle. This is an example of which process?
a)
Conduction
b)
Convection
c)
Radiation
2.
A metal spoon that gets warm when used to stir hot soup is an example of:
a)
Conduction
b)
Convection
c)
Radiation
3.
The Sun’s rays take about 8 minutes to reach Earth’s atmosphere. Which process describes the thermal energy transfer between the Sun and the Earth?
a)
Conduction
b)
Convection
c)
Radiation
4.
This is a lava lamp. When the light bulb heats the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:
a)
Conduction.
b)
Convection.
c)
Radiation.
5.
When the temperature outside rises, the temperature of the air in the house rises as well. Why is the 2nd floor air warmer than the 1st floor? __________________________________________________________________________________
a)
Conduction. The 1st and 2nd floor are touching.
b)
Convection. Warm air rises to 2nd floor.
c)
Radiation. The sun is heating the whole house.
6.
A girl’s hands become warm after holding a mug of hot coffee. What process explains this?
a)
Conduction
b)
Convection
c)
Radiation
7.
Chris has to build a fire to keep the campers warm. The heat transfer from the fire keeps the campers warm due to:
a)
Conduction
b)
Convection
c)
Radiation
8.
In the water cycle, sunlight causes water to evaporate, rise to form clouds, fall as precipitation, flow into a body of water, and begin the cycle again. What type of energy transfer is occurring as the evaporated water rises?
a)
Conduction
b)
Convection
c)
Radiation
9.
A beaker is heated with a balloon attached to the top. When the water in a beaker is heated, the steam rises to inflate the balloon. When the air in a hot air balloon is heated, the hot air rises and lifts the balloon. What do both of these things have in common? _________________________________
a)
Both of them involve conduction, because the balloon is attached to the beaker and hot air balloon basket.
b)
In both instances, a balloon is inflated because of warm air rises and filling the balloon. Thus, convection takes place.
c)
Radiation is involved in both instances because of the fire involved.
10.
Pans A & B shown above have been on a hot stove for 10 minutes. Pan A has a metal handle and pan B has a plastic-coated handle. Which handle would be hotter?___________ Why?_________________
a)
Pan A because the metal is a conductor of heat.
b)
Pan B because there is an insulator on the pan.
c)
Pan A because there metal is an insulator.
d)
Pan B because the metal conducts heat.
11.
An ice cube melts at room temperature because heat moves from ____________________ to ___________________.
a)
Cooler to warmer
b)
Warmer to cooler
12.
Explain the difference between conduction and convection.
a)
Conduction involves heat going in all directions while heat rises with convection.
b)
Heat moves in all directions for convection, but it rises for conduction.
c)
Heat rises for convection and travels thru liquids and gases. Conduction travels thru solids and liquids but must be touching.
d)
Thermal energy travels thru solids for both conduction and convection; however, conduction involves direct contact.
13.
Identify and explain the different types of heat transfer (convection, conduction, radiation) occurring in the following scenario. Chris went on a camping trip. During the day it was so hot that he got sunburn. When it was time to go to his campsite, he noticed smoke in the air. His father had started a fire and he felt the heat as he walked by. In the morning while his mother was cooking breakfast he accidentally touched a hot pan and got burned. Although this was the case he still had a lot of fun on the trip.
a)
Sunburn = radiation;
Smoke rising = convection;
Feeling fire = radiation;
Touching hot pan = convection
Smoke rising = convection;
Feeling fire = radiation;
Touching hot pan = convection
b)
Sunburn = radiation;
Smoke rising = conduction;
Feeling fire = radiation;
Touching hot pan = conduction
Smoke rising = conduction;
Feeling fire = radiation;
Touching hot pan = conduction
c)
Sunburn = radiation;
Smoke rising = convection;
Feeling fire = radiation;
Touching hot pan = conduction
Smoke rising = convection;
Feeling fire = radiation;
Touching hot pan = conduction
14.
What are the differences and similarities between radiation and conduction?
a)
Both are types of heat transfer. Radiation occurs in all directions thru empty space. Conduction occurs in solids and liquids and must touch.
b)
Conduction occurs in liquids and gases. Radiation occurs in rays, waves, and particles.
c)
Radiation involves heat rising, but conduction involves direct contact.
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