Mechanical and Electromagnetic Waves Flashcard

Front

What are microwaves?

Back

Microwaves are electromagnetic waves with longer wavelengths than infrared waves, commonly used for heating food.

Front

What does Point A represent in a wave diagram?

Back

Point A represents the crest of the wave, which is the highest point.

Front

What does Letter B represent in a wave diagram?

Back

Letter B represents the trough of the wave, which is the lowest point.

Front

How does wavelength relate to energy in waves?

Back

A wave with a shorter wavelength has more energy than one with a longer wavelength.

Front

What are ultraviolet rays?

Back

Ultraviolet rays are electromagnetic waves with shorter wavelengths than infrared waves and can cause sunburn.

Front

Define wavelength.

Back

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

Front

What is amplitude in a wave?

Back

Amplitude is the maximum distance from the rest position to the crest or trough of a wave.

Front

What is the difference between mechanical and electromagnetic waves?

Back

Mechanical waves require a medium to travel through, while electromagnetic waves do not.

Front

What is a crest in a wave?

Back

A crest is the highest point of a wave.

Front

What is a trough in a wave?

Back

A trough is the lowest point of a wave.