Temperature & Heat Quiz

In this class, we have seen computer simulations and other scientific investigations that show how molecules within different substances have kinetic energy. Which term may be defined as a measurement of the average kinetic energy of the molecules within a substance? (This measurement also indicates how hot or cold something is...)

• temperature

• thermal energy

• heat flow

• thermal equilibrium

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NGSS.MS-PS1-4

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Conduction happens as energy flows from a warmer object to a cooler object. Which of the following is an example of heat transfer by the process of conduction?

• electromagnetic radiation transfers energy from the sun to Earth

• warmer air rises and cooler air sinks, resulting in a current

• your body heat transfers energy to an ice cube you are holding in your hand, causing the ice to melt

• hot, molten wax rises within the base of a lava lamp then sinks back down after cooling

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NGSS.MS-PS3-4

As water is heated by the sun, it becomes less dense and rises, eventually evaporating to become water vapor (a gas). What reasoning explains the decrease in the density of warming water and the eventual change in state of matter (going from a liquid to a gas)?

• The water molecules move faster, causing the water to expand (and the molecules to spread out).

• The water molecules move slower, causing the water to expand (and the molecules to spread out).

• The water molecules move faster, causing the water to contract (and the molecules to pack in together).

• The water molecules move slower, causing the water to contract (and the molecules to pack in together).

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NGSS.MS-PS1-4

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In what direction does thermal energy transfer (or, how does heat flow)?

• from the object with a higher pressure to the object with a lower pressure

• from the object with a lower pressure to the object with a higher pressure

• from the object with a higher temperature to the object with a lower temperature

• from the object with a lower temperature to the object with a higher temperature

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NGSS.MS-PS1-4

When the “lava” in a lava lamp repeatedly rises to the top of the lamp, then sinks down, this is an example of…

• Conduction

• Convection

• Radiation

• Absorption

Ayan warms some hot chocolate in a microwave oven. Which reasoning explains how the particles that make up the hot chocolate change as the temperature increases?

• They move slower.

• They have less energy.

• They move farther apart.

• They gather closer together.

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NGSS.MS-PS1-4

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On a hot day, the sun causes the sidewalk to become very warm. Which is a valid claim about how the particles that make up the sidewalk change as the temperature increases?

• They move faster.

• They move closer together.

• Their kinetic energy decreases.

• They move freely from place to place.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

On a hot day, the sun causes the sidewalk to become very warm. Which method of heat transfer is this an example of?

• Reflection

• Conduction

• Convection

• Radiation

Energy that travels as EM (electromagnetic) waves is called...

• Conduction

• Radiation

• Convection

• Refraction

Temperature is related to the average kinetic energy of particles

in matter. ________ _________measures the total kinetic energy of particles

in an object.

• Thermal energy

• Sound energy

• Temperature equilibrium

• Light equilibrium

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NGSS.MS-PS3-4

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