Unit 2 & 3 Exam

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 do you calculate density?

Back

Density = Mass / Volume.

Front

What is the formula for calculating the density of an object?

Back

Density (ρ) = Mass (m) / Volume (V).

Front

If an object has a mass of 14g and a volume of 2cm³, what is its density?

Back

7 g/cm³.

Front

What is neutral buoyancy?

Back

Neutral buoyancy occurs when an object's density is equal to the density of the fluid it is in, allowing it to neither sink nor float.

Front

Give an example of neutral buoyancy.

Back

A fish swimming in the ocean.

Front

If a paper clip has a mass of 9g and a volume of 3cm³, what is its density?

Back

3 g/cm³.

Front

What happens to an object with a density greater than the fluid it is placed in?

Back

It will sink.

Front

What happens to an object with a density less than the fluid it is placed in?

Back

It will float.

Front

What is the density of mercury?

Back

13.5 g/cm³.