PS 1-4 Matter: Lesson 5 Quiz Review

Thermal energy, felt as heat, is always transferred from warmer objects to colder objects.

• True

• False

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NGSS.MS-PS1-4

Dew forms on grass at different points during the year. What is happening with thermal energy, speed and spacing of molecules in this model?

• The air surrounding the grass gains thermal energy causing water vapor (gas) to change into liquid water. Molecules are slowing down and coming together.

• The air surrounding the grass gains thermal energy causing liquid water to change into water vapor (gas). Molecules are speeding up and spreading apart.

• The air surrounding the grass loses thermal energy causing water vapor (Gas) to change to liquid water on the grass. Molecules are speeding up and spreading apart.

• The air surrounding the grass loses thermal energy causing water vapor (gas) to change to liquid water on the grass. Molecules slow down and come together.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy from a hot stove has popcorn popping in the pan. What is happening in this model with thermal energy, speed and spacing of molecules?

• Thermal energy is being removed from the stove to the oil. The molecules in the oil speed up and spread apart making the kernels pop.

• Thermal energy is being added from the stove to the pot/popcorn. The molecules in the popcorn speed up and spread out until the kernel bursts.

• Thermal energy is being removed from the stove to the pot/popcorn. The molecues in the popcorn slow down and come together.

• Thermal energy is being added from the stove to the kernels. The molecules in the kernels slow down and spread apart until the kernels burst.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Thermal energy transferred from something warm to a cooler object is called __________________.

• thermal energy

• temperature

• heat

• kinetic energy

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NGSS.MS-PS3-5

A balloon will contract (shrink) when placed in a refrigerator. Why?

• An increase in temperature causes the particles to move faster and spread out.

• Any decrease in temperature causes the gas paticles to change to a liquid.

• Any increase in temperature causes a decrease in particle motion.

• A decrease in temperaure causes the particles to slow down and get closer together.

Tags

NGSS.MS-PS1-4

Similar to evaporation, leaves from plants and trees transpire. Explain what is happening with thermal energy, speed and spacing of molecules in this model.

• Thermal energy is being removed changing the water (liquid) in the leavees to water vapor (gas). Water molecules are speeding up and coming togther.

• Thermal energy is being added changing water vapor (gas) into liquid water. Water molecules are slowing down and spreading out.

• Thermal energy is being removed changing water vapor (gas) into liquid water. Water molecules are speeding up and coming together.

• Thermal energy is being added changing the water (liquid) in the leaves to water vapor (gas). Water molecules are speeding up and spreading out.

Tags

NGSS.MS-PS1-4

A 12 ounce glass of water at 70 degrees has more thermal energy than a 12 ounce glass of water at 60 degrees. How is this model true?

• This model is incorrect because there is the same amount of water in each glass so the thermal energy is the same.

• The molecules are more spread apart and moving slower at 70 degrees than 60 degrees.

• The molecules are more spread apart and moving faster at 70 degrees than 60 degrees.

• The molecules are closer together and moving faster at 70 degrees than 60 degrees.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Miss Holland really likes Jell-o Pudding Pops so she decided to make her own. After mixing up the pudding, she placed it in the molds and placed them in the freezer. Explain what is happening with thermal energy, speed and spacing of molecules in this model.

• Thermal energy is being added because when things freeze they release small amounts of heat.

• Thermal energy is being removed as the pudding molecules are slowing down and coming closer together.

• Thermal energy is being removed as pudding molecules are speeding up and spreading apart.

• Thermal energy is being added because when things freeze, they expand so molecules are speeding up and spreading apart.

Tags

NGSS.MS-PS1-4

Thermal energy decreases when

• temperature increases.

• the average velocity of the molecules decreases.

• the average speed of the molecules decreases.

• the potential energy of the molecules decreases.

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NGSS.MS-PS1-4

Which of the following is NOT true about heat?

• Heat is the transfer of energy as a result of differences in temperature.

• Heat and temperature are different, but related topics.

• Heat always flows from hot to cold.

• Heat always flows from cold to hot.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5