Thermal Energy F1 Study Guide

Thermal energy is always creating a change of state. Heating a substance will cause its particles to move or vibrate _____.

• faster

• the same speed

• slower

• close together

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NGSS.MS-PS1-4

Once a liquid gains enough thermal energy, it can change into its_______ state.

• Gaseous

• Liquid

• Solid

• Frozen

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What happens when the energy in the particles of water vapor begins to cool?

• The average potential energy decreases.

• The average kinetic energy decreases.

• The average potential energy remains the same.

• The average kinetic energy remains the same.

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Inside a hot gym, a basketball player hot from the game holds a piece of ice in his hand. Which of the following statements are true about what happens to the ice and the cup over time? Choose the TWO that apply.

• Heat moves from the ice to the cup.

• The particles in the ice start to move faster.

• Both the ice and the cup change state.

• The cup changes temperature.

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At a family picnic Eliza pours herself a glass of lemonade and starts talking to family members. Eliza remembers her glass of lemonade she had poured when it was time to eat. She asked her mom why her lemonade was not cold anymore, yet the pitcher of lemonade was still cold. Which of the following statements best explains why the pitcher of lemonade is still cold but the glass of lemonade is warm?

• The pitcher of lemonade has more particles and requires more energy from its surroundings to warm up.

• The pitcher of lemonade has more particles and requires less energy from its surroundings to warm up.

• The small cup of lemonade has fewer particles and requires more energy from its surroundings to warm up.

• Both cups of lemonade require the same amount of energy from their surroundings to warm up to the same temperature.

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Study the below information below in the chart about how thermal energy moves into different changing states. Which TWO boxes are CORRECT?

• From a solid to a liquid is 32 Degrees Fahrenheit

• From a liquid to a solid is 100 Degrees Fahrenheit

• From a liquid to a gas is 212 Degrees Fahrenheit

• From a gas to a liquid is 100 Degrees Fahrenheit

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NGSS.MS-PS3-4