Thermal Energy and Heat Properties Review

Which model correctly shows how these particles would act when thermal energy is added?

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When you touch something and it feels cold _______

• it will always freeze
• the coldness from the substance moved into your hand
• thermal energy moves from your hand into the colder substance
• it will always melt

What happens to particles as they heat up?

• they get bigger
• they get smaller
• they start to move faster
• they start to slow down

These three beakers contain a liquid at the same temperature but have different amounts. Which beaker would have the LEAST thermal energy?

• Beaker A
• Beaker B
• Beaker C

The table shows the specific heat of different materials. Specific heat describes how much energy is needed to change the temperature of one gram of a material. A scientist adds 100 J of heat to 25 gram samples of silver, copper, and gold. Which material would have the biggest temperature change?

• Copper
• Gold
• Silver
• They would all change the same amount

The table shows the specific heat of different materials. Specific heat describes how much energy is needed to change the temperature of one gram of a material. Which material requires the MOST THERMAL ENERGY to increase its temperature?

• Aluminum
• Water
• Silver
• Ethanol

Which model correctly shows the flow of thermal energy?

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The average kinetic energy of particles in a sample is called the ____.

• temperature
• heat
• thermal energy
• specific heat

The total amount of kinetic energy of particles in an object is called ________

• specific heat
• thermal energy
• heat
• temperature

These two rocks are made of the same substance and are the exact same temperature, but have different masses. The rock on the right has significantly less mass than the rock on the left. Identify which rock would have the greater amount of thermal energy.

• small rock
• large rock
• same temperature, same amount of thermal energy