Waves

Front

What is the definition of a wave?

Back

A wave is a disturbance that transfers energy through space or matter, typically characterized by oscillations or vibrations.

Front

What are the two main types of waves?

Back

The two main types of waves are mechanical waves and electromagnetic waves.

Front

What is the formula for wave velocity?

Back

The formula for wave velocity is V = f × λ, where V is velocity, f is frequency, and λ (lambda) is wavelength.

Front

What is frequency in the context of waves?

Back

Frequency is the number of complete wave cycles that pass a given point in one second, measured in hertz (Hz).

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 are mechanical waves?

Back

Mechanical waves are waves that require a medium (solid, liquid, or gas) to travel through.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that do not require a medium and can travel through a vacuum, such as light waves.

Front

What is refraction?

Back

Refraction is the bending of a wave as it passes from one medium to another at an angle, due to a change in its speed.

Front

What is the relationship between frequency and wavelength?

Back

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

Front

What is the speed of sound in air at room temperature?

Back

The speed of sound in air at room temperature (20°C) is approximately 343 meters per second.