Thermal Energy Review

A space shuttle is covered with two layers of carbon. The two layers are the same size and have the same number of molecules. When the space shuttle is sitting on the ground, the layers do not touch, as shown in the diagram above. When the space shuttle takes off, the layers move so that they are touching. Use the information in the diagram to answer the question. How does the temperature of the outer layer compare with the temperature of the inner layer before the layers touch? What will happen after the layers have been touching for a while?

• a. Before the layers touch, the outer layer is hotter than the inner layer. Once the layers are touching, the outer layer will transfer kinetic energy to the molecules in the cooler inner layer until both layers reach the same temperature, which will be in between their starting temperatures.

• b. Before the layers touch, the outer layer is hotter than the inner layer. Once the layers are touching, the cooler inner layer will gain kinetic energy until the molecules of both layers have an energy of 90, because hotter things increase the temperature of cooler things.

• c. Before the layers touch, the outer layer is cooler than the inner layer. Once the layers are touching, the inner layer will transfer kinetic energy to the molecules in the cooler outer layer until both layers reach the same temperature, which will be in between their starting temperatures.

• d. Before the layers touch, the layers are different temperatures. Once the layers are touching, kinetic energy and cold energy will transfer between the molecules in the two layers until both layers reach the same temperature, which will be in between their starting temperatures.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What can you infer about samples C and D? (select all that apply)

• 10. What can you infer about samples C and D? (select all that apply)

• There is more thermal energy in sample D

• When connect the energy will move from sample D to sample C

• Sample C is at a lower temperature then sample D

• The thermal energy is the same between both samples

Tags

NGSS.MS-PS1-4

Which sample has the most thermal energy?

• A

• B

• C

• Not enough information

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NGSS.MS-PS1-4

Select all that apply.

• The total thermal energy of A is greater than the total thermal energy of B

• The total thermal energy of B is greater than the total thermal energy of A

• The average kinetic energy of A is greater than the average kinetic energy of B

• The average kinetic energy of B is greater than the average kinetic energy of A

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following is a characteristic of thermal energy?

• It is always conserved

• It can be completely converted into work

• It increases with the motion of particles within an object

• It is the same as temperature

Tags

NGSS.MS-PS1-4

Identify the type of energy represented by the illustration.

• Nuclear Energy

• Elastic Energy

• Thermal Energy

• Electrical Energy

Tags

NGSS.MS-PS1-4

What type of energy is primarily involved in heating and cooling processes?

• Mechanical Energy

• Thermal Energy

• Electrical Energy

• Nuclear Energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Eryk has a bottle of ice water with a temperature of 0 degrees Celsius. When he mixes his water with Kelli's, the water now has a temperature of 20 degrees Celsius. What happened to the energy in Eryk's water?

• More energy was created causing Eryk's water to warm up.

• Energy was transferred from Erky's water into Kelli's water which caused Eryk's water to warm up.

• Energy was transferred from Kelli's water into Eryk's water which caused Eryk's water to warm up.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Joseph puts a piece of toast on a plate. The toast is hot from the toaster. When he puts the toast on the plate, the energy of the plate increases. What must be true of the energy of the toast?

• a. Its energy stays the same while the energy of the plate increases.

• b. Its energy decreases while the energy of the plate increases.

• c. Its energy increases while the energy of the plate increases.

• d. It is impossible to know without data on the number of molecules in each object.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

When two objects come into contact energy will transfer from...(select all that apply)

• fast moving molecules to slow moving molecules

• slow moving molecules to fast moving molecules

• cold temperature objects to hot temperature objects

• high temperature objects to low temperature objects

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5