Weather and Water practice

What is the formula for calculating density?

• to find the density, divide the volume by the mass

• to find the density, divide the mass by the volume

• to find the density, multiply the volume and the mass

Calculate the density of a saltwater solution with a volume of 125mL and a mass of 75g.

• 1.67 g/mL

• 0.68 g/mL

• 0.6 g/mL

• 1.6 g/mL

How does the density of water change when it is heated?

• It becomes less dense.

• It becomes more dense.

• The density does not change.

What is one way to change the density of a liquid?

• change the color of the liquid

• add more liquid

• change the temperature of the liquid

Do particles in a sample of warm water have more kinetic energy than particles in a sample of cold water?

• Yes

• No

Hot water is ______________ cold water.

• less dense than

• more dense than

• the same density as

Gases can be compressed.

• True
• False

Liquids can be compressed.

• True
• False

When you heat a fluid, what happens to the size of the particles?

• They increase in size
• They decrease in size
• They stay the same size
• There are more of them

Energy of motion is also called ___________.

• kinetic energy
• convection
• density