Thermal Energy and Temperature Quiz

What happens when two objects at different temperatures come into contact?

• The hotter object stays the same temperature.

• The colder object gets even colder.

• Heat transfers from the hotter object to the colder object.

• Both objects lose energy.

Which factor determines how much an object’s temperature will change?

• The object's weight

• The amount of thermal energy transferred and the number of molecules in the object

• The shape of the object

• The object's color

What is thermal equilibrium?

• When two objects have the same mass

• When two objects reach the same temperature

• When one object heats up faster than another

• When no heat is transferred between objects

In the Thermal Energy Simulation, which system reached a higher equilibrium temperature?

• System X

• System Y

• Both systems reached the same equilibrium temperature

• Neither system reached equilibrium

If you increase the number of molecules in an object but keep the thermal energy the same, what happens to its temperature?

• The temperature increases

• The temperature stays the same

• The temperature decreases

• The object loses energy

Why does a larger body of water take longer to heat up compared to a smaller one?

• It has fewer molecules

• The molecules move slower

• The energy gets distributed among more molecules

• Water cannot store thermal energy

Which of the following is true about energy transfer?

• Energy is created during transfer

• Energy is destroyed when it moves between objects

• Energy is transferred but not created or destroyed

• Energy can be stored but never transferred

If two cups of water at the same temperature but different volumes are mixed, what happens?

• The water in the larger cup will cool down

• The water will reach an average temperature based on volume and thermal energy

• The water in the smaller cup will warm up more than the larger cup

• There will be no change in temperature

Which system from the lesson transferred the most thermal energy?

• A small sample of water at a high temperature

• A large sample of water at a high temperature

• A small sample of water at a low temperature

• A large sample of water at a low temperature

What would happen if the demonstration was conducted in a refrigerator?

• The rate of energy transfer would increase

• The equilibrium temperature would be lower

• The cold water would heat up faster

• There would be no change