Electromagnetic Spectrum, Light, and Sound.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

Front

Which type of electromagnetic waves have the highest energy?

Back

Gamma rays have the highest energy and are the most dangerous type of electromagnetic waves.

Front

Which type of electromagnetic waves have the lowest frequency?

Back

Radio waves have the lowest frequency in the electromagnetic spectrum.

Front

What is the relationship between wavelength and frequency in electromagnetic waves?

Back

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

Front

What color of light is absorbed by a green leaf?

Back

A green leaf absorbs all colors of light except green, which is reflected.

Front

What are the visible light waves?

Back

Visible light waves are the portion of the electromagnetic spectrum that can be seen by the human eye, typically ranging from about 400 nm (violet) to 700 nm (red).

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 (km/s).

Front

What is sound?

Back

Sound is a type of mechanical wave that travels through a medium (solid, liquid, or gas) as vibrations of particles.

Front

How does sound travel through different mediums?

Back

Sound travels fastest in solids, slower in liquids, and slowest in gases due to the density and elasticity of the medium.

Front

What is the frequency of a wave?

Back

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