Waves unit test

Front

What is a mechanical wave?

Back

A mechanical wave is a wave that requires a medium (solid, liquid, or gas) to travel through and cannot propagate through a vacuum.

Front

What is the relationship between light and energy?

Back

Light is energy because it causes change or motion.

Front

How is frequency defined in the context of waves?

Back

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

Front

What determines the pitch of a sound?

Back

The pitch of a sound depends on its frequency; higher frequency results in a higher pitch.

Front

Which type of electromagnetic radiation has the shortest wavelength?

Back

Gamma radiation has the shortest wavelength among electromagnetic waves.

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel through, while electromagnetic waves can travel through a vacuum.

Front

What is amplitude in wave terminology?

Back

Amplitude is the maximum displacement of points on a wave from its rest position, related to the energy of the wave.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive points that are in phase on a wave, such as crest to crest or trough to trough.

Front

What is the speed of a wave?

Back

The speed of a wave is the distance traveled by a wave in a given amount of time, calculated as speed = frequency × wavelength.

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 displacement is the sum of the individual displacements.