Mechanical, EM and light waves

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through a vacuum and do not require a medium. They include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What are mechanical waves?

Back

Mechanical waves are waves that require a medium (solid, liquid, or gas) to travel through. Examples include sound waves and water waves.

Front

What is the relationship between wavelength and frequency in waves?

Back

Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa. This relationship is described by the equation: speed = wavelength × frequency.

Front

What is a crest in wave terminology?

Back

A crest is the highest point of a wave, representing the maximum displacement of the medium from its rest position.

Front

What type of wave is produced by nuclear explosions and stars?

Back

Gamma rays are produced by nuclear explosions and in stars, representing powerful energy.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, organized by wavelength and frequency, from radio waves to gamma rays.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

What is the difference between transverse and longitudinal waves?

Back

Transverse waves have oscillations that are perpendicular to the direction of wave travel (e.g., light waves), while longitudinal waves have oscillations that are parallel to the direction of wave travel (e.g., sound waves).

Front

What is the formula for calculating wave speed?

Back

Wave speed can be calculated using the formula: speed = wavelength × frequency.

Front

What are the different types of electromagnetic waves?

Back

The different types of electromagnetic waves include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.