Density and Buoyancy Review

Front

What is density?

Back

Density is the mass of an object divided by its volume, typically expressed in grams per cubic centimeter (g/cm³).

Front

How does density affect buoyancy?

Back

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

Front

What is buoyancy?

Back

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in it.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

What happens to the density of an object if its mass increases but its volume remains the same?

Back

The density of the object increases.

Front

What is the relationship between mass and volume in terms of density?

Back

Density is directly proportional to mass and inversely proportional to volume.

Front

What does it mean for an object to be neutrally buoyant?

Back

An object is neutrally buoyant when it neither sinks nor floats, meaning its density is equal to the density of the fluid.

Front

If a ping pong ball floats in water, what can we infer about its density compared to water?

Back

The ping pong ball is less dense than water.

Front

What is positive buoyancy?

Back

Positive buoyancy occurs when an object is less dense than the fluid it is in, causing it to float.

Front

What is negative buoyancy?

Back

Negative buoyancy occurs when an object is more dense than the fluid it is in, causing it to sink.