Waves and Thermal Energy Pretest

Front

What is the speed of electromagnetic waves in free space?

Back

All electromagnetic waves have the same speed in free space.

Front

In which material does sound travel the fastest?

Back

Sound travels fastest in solids.

Front

What does the Doppler effect indicate about distant galaxies observed by Edwin Hubble?

Back

The distant galaxies are moving away from Earth.

Front

What is the highest point on a wave called?

Back

The highest point on a wave is called the crest.

Front

What do all waves carry as they travel from one place to another?

Back

All waves carry energy as they travel.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between successive crests of a wave.

Front

What is the relationship between frequency and wavelength in electromagnetic waves?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

How does temperature affect the speed of sound?

Back

The speed of sound increases with an increase in temperature.

Front

What is the principle of superposition in wave theory?

Back

The principle of superposition states that when two or more waves overlap, the resulting wave is the sum of the individual waves.