Electromagnetic Waves

Electromagnetic waves vary in

• the speed they travel in a vacuum.

• wavelength and frequency.

• the way they reflect.

• the orientation of their electric and magnetic fields.

Tags

NGSS.HS-PS4-1

Infrared rays have a shorter wavelength than

• Ultraviolet ray.

• X-rays.

• radar waves.

• gamma rays

Tags

NGSS.HS-PS4-1

The full range of frequencies of electromagnetic radiation is called

• visible light.

• radio waves.

• the electromagnetic spectrum.

• invisible radiation.

The visible light spectrum ranges between

• radar waves and X-rays.

• television waves and infrared rays.

• infrared rays and ultraviolet rays.

• ultraviolet rays and gamma rays.

Tags

NGSS.HS-PS4-4

These electromagnetic waves are used in cell phones.

• MICROWAVES

• RADAR

• ULTRAVIOLET WAVES

• INFRARED WAVES

These are electromagnetic waves that you can see. They make up only a small part of the electromagnetic spectrum.

• ULTRAVIOLET LIGHT

• WHITE LIGHT

• VISIBLE LIGHT

• INFRARED LIGHT

Electromagnetic rays with the shortest wavelengths and highest frequencies are called ____.

• RADIOACTIVE RAYS

• X-RAYS

• ULTRAVIOLET RAYS

• GAMMA RAYS

How are electromagnetic waves different from other waves?

• They have very short wavelengths

• They transmit energy instead of matter

• They can travel through the vacuum of space (without particles)

• They can change direction by reflection

Tags

NGSS.HS-PS4-3

Which of the following electromagnetic waves has the lowest frequency?

• gamma ray

• infrared wave

• visible light wave

• microwave

Tags

NGSS.HS-PS4-1

The _______________ determines the color of visible light.

• wavelength (and frequency)

• speed

• amplitude

• particles of the medium

Tags

NGSS.HS-PS4-1