Heat Flow Expansion and Contraction

Matter becomes heavier when it is heated.

• True

• False

A balloon that floats outdoors during winter will become smaller in size when you compare it to its size when it is indoors.

• True

• False

To keep your car tires in good condition, always put in the right amount of air + 10% extra into the tires during the summer.

• True

• False

When water loses heat at 10^oC it will turn into a solid.

• True

• False

As the liquid in a thermometer goes down, it takes up less space.

• True

• False

Expansion happens when gases are heated.

• True

• False

Heat can change the mass of matter.

• True

• False

Solids will expand when there is heat gain, but liquids will not.

• True

• False

What happens when a solid expands due to heat gain?

• Its mass increases.

• Its mass decreases.

• Its volume increases.

• Its volume decreases.

A group of Gr. 4 students was instructed to do the metal ball and ring

experiment. How can they make the metal ball pass through the metal ring?

• They should heat the metal ring.

• They should place the metal ball in hot water.

• They should put the metal ball to the flame of a candle.

• They should place the metal ring in ice-cold water.