Motion Of Molecules Olympics Question Preview (ID: 6055)


Motion Of Molecules Olymipics. TEACHERS: click here for quick copy question ID numbers.

To change Ice to water you have to add?
a) Energy
b) Friction
c) Pressure
d) Salt

A tall bulding gets taller on a hot day because?
a) The molecules in the building expand.
b) The molecules in the building contract
c) Buildings can not grow.
d) A building would shrink on a hot day.

If you put a balloon filled with air in your freezer.
a) The balloon will shrink and have less volume.
b) The balloon will shrink and increase in volume.
c) The balloon will get bigger and increase in volume.
d) The balloon will get bigger and decrease in volume.

Cracks in the sidwalk get smaller in the summer time because?
a) The space between the molecules of cement get bigger and the concrete expands.
b) The space between the molecules of cement get smaller and the concrete contracts.
c) The molecules of cement slow down.
d) There is less energy in the concrete during the summer.

If you increase the amount of energy in molecules.
a) The space between the molecules increases.
b) The space between the molecules decreases.
c) The volume of the molecules decreases.
d) It will become a solid.

A solid has?
a) Definate Shape and Defiante Volume.
b) No definate shape, but a definate volume.
c) No definate shape or volume.
d) Molecules that move around each other.

A liquid has?
a) No definate shape, but a definate volume.
b) No definate shape or volume.
c) Definate shape and volume
d) Molecules that dont move around each other.

A gas has?
a) No definate shape or volume.
b) Definate shape or volume.
c) No definate shape but a defniate volume.
d) a bad smell

The two types of solids are?
a) Crystaline and Amorphous
b) Hard and Soft
c) Dense and Light
d) Clear and Cloudy

Why does a hot air balloon fly?
a) Air inside the balloon is less dense then outside.
b) Air inside is under more pressure.
c) Air inside the balloon is more dense then outside.
d) The air molecules inside the balloon are moving slower than outside.

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