Matter and Density Test

Why is density known as a characteristic property?

Why do some objects float in water?

Why do some objects sink in water?

The measurement of how much mass is contained in a given volume is called ________________________________________.

• matter
• mass
• volume
• density

Explain how a hot air balloon rises and falls.

• As air cools, it rises, causing the balloon to rise. As the air heats up, the air condenses and falls, causing the balloon to fall.
• As air heats up, it rises, causing the balloon to rise. As the air cools, it falls, causing the balloon to fall.
• As the air heats up, it falls, causing the balloon to fall. As the air cools, it rises, causing the balloon to rise.
• The operator of the balloon uses a motor to make the balloon rise and fall.

___________________________________ is the amount of matter in an object.

• Matter
• Mass
• Volume
• Density

What happens to the density of a gas if its temperature is increased? Explain why.

• When the temperature of a gas is increased, it causes the volume to increase, which lowers the density and the gas rises.
• When the temperature of a gas is increased, it causes the volume of the gas to increase, which increases the density and the gas rises.
• When the temperature of a gas is increased, it causes the volume of the gas to decrease, which increases the density and the gas rises.
• when the temperature of a gas is increased, it causes the volume of the gas to increase, which decreases the density and the gas rises.

_______________________________________ is anything that has mass and takes up space.

• Matter
• Mass
• Volume
• Density

Explain the difference between expansion and contraction

• Expansion is the increase in volume with increasing temperature. Contraction is the decrease in volume with decreasing temperature.
• Expansion is the decrease in volume with increasing temperature. Contraction is the increase in volume with decreasing temperature.
• Expansion is the increase in volume with decreasing temperature. Contraction is the decrease in volume with increasing temperature.
• Expansion is the decrease in volume with decreasing temperature. Contraction is the increase in volume with increasing temperature.

Which of the following statements is correct?

• Object B is heavier than Object C
• Object B is less dense than Liquid 1.
• Object B is less dense than Liquid 3.
• Objects B and C have the same density.