Mechanical and Electromagnetic Waves Flashcard

Front

What is a crest in a wave?

Back

The highest point of a wave.

Front

What is a trough in a wave?

Back

The lowest point of a wave.

Front

What type of wave has longer wavelengths than infrared and is commonly used for heating food?

Back

Microwaves.

Front

Which part of the electromagnetic spectrum has the least amount of energy?

Back

Radio Waves.

Front

How does the energy of a wave relate to its wavelength?

Back

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

Front

What is the electromagnetic spectrum?

Back

The range of all types of electromagnetic radiation, ordered by wavelength or frequency.

Front

What is the relationship between frequency and wavelength in waves?

Back

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

Front

What are electromagnetic waves?

Back

Waves that can travel through a vacuum and consist of oscillating electric and magnetic fields.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

Approximately 299,792 kilometers per second (the speed of light).

Front

What is the difference between mechanical waves and electromagnetic waves?

Back

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