Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields. They include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

Which type of electromagnetic wave has the longest wavelength?

Back

Infrared waves have the longest wavelength among the types of electromagnetic waves listed.

Front

What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow all light to pass through, translucent materials allow some light to pass through, and opaque materials do not allow any light to pass through.

Front

What type of electromagnetic waves are shorter than visible light but longer than X-rays?

Back

Ultraviolet rays have wavelengths that are shorter than visible light but longer than X-rays.

Front

How does visible light interact with leaves?

Back

Red light is reflected by leaves while all other colors are absorbed.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, organized by wavelength and frequency.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters.

Front

What is frequency?

Back

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

Front

What is the relationship between wavelength and frequency?

Back

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

Front

What are gamma rays?

Back

Gamma rays are a type of electromagnetic radiation with the shortest wavelength and highest energy.