Density

What is the relationship between density and buoyancy?

• An object will float in a fluid if its density is less than the density of the fluid.

• An object will sink in a fluid if its density is less than the density of the fluid.

• An object will float in a fluid if its density is greater than the density of the fluid.

• An object will neither float nor sink if its density is equal to the density of the fluid.

What is density?

• A measure of mass per unit volume, typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).

• The amount of space an object occupies.

• The weight of an object divided by its volume.

• The total mass of an object regardless of its size.

How do you convert density from g/cm³ to kg/m³?

• Multiply by 1000

• Divide by 1000

• Add 1000

• Subtract 1000

How do you calculate density?

• Density = Mass + Volume

• Density = Mass / Volume

• Density = Mass x Volume

• Density = Volume / Mass

What happens to the density of an object if its mass increases while its volume remains constant?

• The density of the object decreases.

• The density of the object remains the same.

• The density of the object increases.

• The density of the object becomes zero.

If an object has a mass of 50g and a volume of 25cm³, what is its density?

• 1g/cm³

• 2g/cm³

• 3g/cm³

• 4g/cm³

If a substance has a density of 8g/cm³, what would be its mass if its volume is 4cm³?

• 24g

• 28g

• 32g

• 36g

How does temperature affect the density of liquids?

• As temperature increases, the density of liquids increases because they contract.

• As temperature increases, the density of liquids decreases because they expand.

• Temperature has no effect on the density of liquids.

• The density of liquids remains constant regardless of temperature.

What is the density of water?

• 0.5 g/cm³

• 1 g/cm³

• 1.5 g/cm³

• 2 g/cm³