Density

What happens to objects with a density greater than water when placed in water?

• They float.

• They dissolve.

• They sink.

• They remain suspended.

If a brick sinks in water, what can you infer about its density compared to water?

• The brick has a lower density than water.

• The brick has the same density as water.

• The brick has a higher density than water.

• The brick's density is unpredictable.

What is density?

• Density is the amount of space an object occupies.

• Density is the mass of an object divided by its volume.

• Density is the weight of an object in air.

• Density is the temperature at which a substance melts.

What is an example of a substance that is less dense than water?

• Oil

• Gold

• Mercury

• Water

How does temperature affect the density of a substance?

• As temperature increases, density increases because substances contract.

• As temperature increases, density decreases because substances expand.

• Temperature has no effect on the density of a substance.

• Density is only affected by pressure, not temperature.

How can you determine if an object will float or sink without measuring?

• By comparing its density to that of water; if it's less, it will float, if more, it will sink.

• By observing its color and texture.

• By checking if it has air inside or not.

• By its size compared to other objects.

What is the density of water?

• 0.5 g/cm³

• 1 g/cm³

• 1.5 g/cm³

• 2 g/cm³

Why do some substances float on water?

• They are less dense than water.

• They are more dense than water.

• They are heavier than water.

• They are lighter than air.

If an object has a mass of 10g and a volume of 5cm³, what is its density?

• 1 g/cm³

• 2 g/cm³

• 3 g/cm³

• 4 g/cm³

If an object has a density of 0.8 g/mL, will it sink or float in water?

• It will sink.

• It will float.

• It will neither sink nor float.

• It will float only if the water is warm.