25 interim 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 do you calculate density?

Back

Density = Mass / Volume.

Front

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

Back

7 g/cm³.

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout.

Front

What is a compound?

Back

A compound is a pure substance made up of two or more different types of atoms chemically bonded together.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

What are the two main types of waves?

Back

Transverse waves and longitudinal waves.

Front

What is a longitudinal wave?

Back

A longitudinal wave is a wave in which the particles of the medium move parallel to the direction of the wave's propagation.

Front

What is a transverse wave?

Back

A transverse wave is a wave in which the particles of the medium move perpendicular to the direction of the wave's propagation.