Thermal Energy

What happens to the molecules in the ground when the temperature of the ground increases?

• The cold energy of the molecules in the ground decreases.

• The energy of the molecules in the ground decreases.

• More heat molecules combine with the molecules in the ground.

• The energy of the molecules in the ground increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How does temperature of the outer layer compare with temperature of the inner layer before they touch? What will happen after the layers have been touching for a while?

• 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.

• 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.

• 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.

• 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 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

What happens to the molecules in a printer when the temperature of the printer decreases?

• The energy of the molecules increases.

• The cold energy of the molecules in the printer increases.

• The printer loses heat molecules.

• The energy of the molecules in the printer decreases.

Tags

NGSS.MS-PS1-4

What is the difference between molecules of stew in a hot pot and the molecules of stew in the freezer?

• The molecules of the stew in the pot are moving faster than the molecules of the stew in the freezer.

• The molecules of the stew in the pot are moving and the molecules of the stew in the freezer are not moving.

• There is no difference because all of the stew. It is made of the same type of molecules.

• The molecules of the stew in the freezer are smaller than the molecules of the stew in the pot.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

A pop tart is hot from the toaster. The pop tart is then placed on the plate. The energy of the plate increases. What happens to the energy of the pop tart?

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

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

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

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to molecules of noodles when the temperature of the noodles increases?

• The energy of the molecules in the noodles decreases.

• More heat molecules combine with the molecules in the noodles.

• The cold energy of the molecules in the noodles decreases.

• The energy of the molecules in the noodles increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

A candle is blown out, the wax of the candle decreases in temperature. What happens to the molecules of the wax when the temperature of the wax decreases?

• The cold energy of the molecules of the wax increases.

• The energy of the molecules of the wax increases.

• The wax loses heat molecules.

• The energy of the molecules of the wax decreases.

Tags

NGSS.MS-PS1-4

Two potatoes are wrapped in foil. One is in a campfire for a while and one is not. What is the difference between molecules of the two potatoes?

• There is no difference.

• The molecules of the campfire potato is moving faster than the other potato.

• The molecules of the campfire potato is moving and the other is not moving.

• The molecules of the campfire potatoes are larger than the other potato.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Ice water is poured into a glass. The energy of the glass decreases. What is true of the ice water?

• Its energy increases while the energy of the glass decreases.

• Its energy stays the same while the energy of the glass decreases.

• Its energy decreases while the energy of the glass decreases.

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

Tags

NGSS.MS-PS1-4

Energy is not created or destroyed, so when energy increases in one part of a system, it decreases by the same amount in another part of the system.

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5