1. 6.9AB: Thermal Energy
Force, Motion, and Energy 1
Which of the following sets of tools would be most useful in an experiment measuring the rate of transfer of thermal energy in four different liquids? A
Triple-beam balance, beakers, metric ruler B
Hot plate, beakers, thermometers C
Microscope, funnel, metric ruler D
pH meter, test tubes, forceps 2
In an energy transfer experiment, four blocks of different temperatures are stacked.
Where would energy transfer by conduction move downward, from a higher block to a lower block? A
Sample 2 to Sample 4 B
Sample 1 to Sample 2 C
Sample 3 to Sample 4 D
Sample 1 to Sample 3 1

2. 6.9AB: Thermal Energy
Force, Motion, and Energy 3
Four containers made of different materials, each containing water at 30º C, were set out on a table. The initial temperature of the water was recorded. The temperature of the water was also recorded 15 minutes later.
Which container was the most effective at preventing heat transfer from the water to the environment? A
Container P B
Container Q C
Container R D
Container S
Container
Initial Temperature
Final Temperature P
30°C
29°C Q
14°C R
21°C S
9°C 4
When an egg is boiled in a pot of water on the stove, there is more than one kind of heat transfer. Heat is transferred from the stove to the pot directly since they are physically touching. Heat is also transferred from the pot to the egg, carried through the water.
What two kinds of heat transfer are represented? A
Stove  Pot = radiation, Pot  Egg = conduction B
Stove  Pot = conduction, Pot  Egg = radiation C
Stove  Pot = convection, Pot  Egg = conduction D
Stove  Pot = conduction, Pot  Egg = convection 2

3. 6.9AB: Thermal Energy
Force, Motion, and Energy 5
A container of hot water was left out on a table. Some of its thermal energy was transferred to the environment. The results in degrees Celsius are shown here.
What was the change in temperature resulting from this heat transfer in degrees Celsius? Record and bubble your answer. 6
Which of the following is an example of conduction A
Solar energy warming a room B
Heat rising from the coils of a stove C
Hot air drying a wet towel D
Heat moving from a clothes iron to a shirt 7
Four steel blocks were heated to different temperatures and stacked together as shown.
In which direction will heat be transferred by conduction? A
From Sample 4 to Sample 1 B
From Sample 2 to Sample 3 C
From Sample 2 to Sample 4 D
From Sample 3 to Sample 2 3

4. Temperatures of Liquids After 10 Minutes (o C)
6.9AB: Thermal Energy
Force, Motion, and Energy 8
Thermal energy transfer by conduction is accomplished when heat moves from a warmer object to a cooler one by – A
moving across a solid barrier. B
being carried in a fluid, like air or water. C
coming in direct physical contact with it. D
traveling through empty space. 9
Water at 34º C was placed into containers made of four different materials. An initial temperature was taken, and a final temperature was taken after 10 minutes.
Which container allowed the most transfer of thermal energy from the water to the environment? A
Glass B
Wood C
Paper D
Plastic
Temperatures of Liquids After 10 Minutes (o C)
Material
Glass
Wood
Paper
Plastic
Initial Temperature 34
Final Temperature 19 32 30 28 4

5. 10.
11.
12.
13.
14.
15.
16.
17.
18.