P4 Heat Basic

____________ flows from high temperature region to low temperature region.

• heat

• temperature

• energy

• matter

____________ is the level of hotness of an object.

• heat

• temperature

• energy

• matter

When an object gained heat, it __________ (the volume increased).

• expanded

• contracted

• melted

• boiled

When an object lost heat, it __________ (the volume decreased).

• expanded

• contracted

• melted

• boiled

A metal rod was inserted into a cup of water.

The temperature of the metal rod increased.

Which statement is true to cause the temperature of the metal rod to increase?

• The water had a lower temperature than the metal rod.

• The water had a higher temperature than the metal rod.

• The mass of the metal rod was higher than the mass of water.

• The mass of the water was higher than the mass of metal rod.

A metal rod was inserted into a cup of water.

The temperature of the metal rod decreased.

Why the temperature of the metal rod decreased?

• Heat flowed from the metal rod to the water.

• Heat flowed from the water to the to the metal rod.

• Metal rod is a better conductor of heat than water.

• Metal rod is a poorer conductor of heat than water.

A metal rod was inserted into a cup of water.

The temperature of the metal rod decreased.

Why the temperature of the metal rod to decrease?

• Metal rod gained heat from the water.

• Metal rod lost heat to the water.

• Metal rod is a better conductor of heat than water.

• Metal rod is a poorer conductor of heat than water.