Thermal Energy Practice Q's

Which image shows the difference between the speed of molecules in hot and cold water?

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stability

• a building in which livestock, especially horses, are kept.

• when something stays mostly the same over time

• the strength to stand or endure

Why does a cup of water become colder when ice is added?

• Heat flows from the water to the ice
• Heat flows from the ice to the water
• Cold flows from the ice to the water
• Cold flows from the water to the ice

When hot and cold air makes contact with each other...

• the hot air will lose kinetic energy.

• the cold will gain kinetic energy.

• the hot air will lose potential energy.

• the cold air will lose potential energy,

Select all systems where energy will transfer when Sample A and Sample B are moved into contact. Select all that apply.

• System 1

• System 2

• System 3

• System 4

Select the correct statements. Select all that apply.

• The temperature of Sample A increased.

• The temperature of Sample B increased.

• The temperature of Sample A decreased.

• The temperature of Sample B decreased.

Once heat transfer is complete the temperature here will be

• 16 degrees

• 12 degrees

• 10 degrees

Energy transfer stops when the two objects:

• have the same total kinetic energy

• reach a state of equilibrium

• run out of energy

• melt

When two object at different temperatures touch, the colder object will

• gain kinetic energy

• lose kinetic energy

• cool off

• connect to the warmer object

An object's total kinetic energy is also known as its

• thermal energy

• temperature

• potential energy

• radiant energy