Density Quizs

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 checking if the object is made of metal or wood.

• By observing the object's color and size.

• By placing it in a vacuum to see if it rises.

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

• They float.

• They dissolve.

• They sink.

• They remain suspended.

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

• They sink.

• They float.

• They dissolve.

• They break apart.

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.

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

• A metal like iron

• A feather

• A piece of wood

• A plastic bottle

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 dissolve.

• It will evaporate.

What is the relationship between density and buoyancy?

• An object will float if it is less dense than the fluid it is in, and sink if it is more dense.

• An object will float if it is more dense than the fluid it is in, and sink if it is less dense.

• Buoyancy is independent of density and depends only on the object's shape.

• An object will float or sink based on its color, not its density.

How do you calculate density?

• Density = Mass + Volume

• Density = Mass - Volume

• Density = Mass / Volume

• Density = Mass * Volume

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

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.

• As temperature increases, density remains constant.