Quarter 1 & Quarter 2 Review

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks or troughs in a wave.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

Why do objects float in water?

Back

Objects float in water if their density is less than the density of water.

Front

What happens to particles when a substance is heated?

Back

When a substance is heated, its particles gain energy and move faster.

Front

What happens to particles when a substance is cooled?

Back

When a substance is cooled, its particles lose energy and move slower.

Front

What is reflection of light?

Back

Reflection is when light bounces off a surface, such as snow.

Front

What is absorption of light?

Back

Absorption is when light is taken in by a material and converted to other forms of energy.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).