Waves in Communication

Remote control devices for television and computer mice are common items that are routinely used by people all around the globe. Which kinds of waves do these devices utilize, and what communication process best describe their use?

• Infrared waves. Machine to Machine then Human to Human.

• Infrared waves. Human to Machine then Machine to Machine.

• Ultraviolet waves. Machine to Machine then Machine to Human

Tags

NGSS.MS-PS4-2

An air traffic controller monitoring radar signals determines that an aircraft is flying at the wrong altitude. She communicates with the airplane’s pilot via radio to alert them about this. Which two kinds of waves was the air traffic controller using, and what kind of waves are they?

• Microwaves and Gamma Rays. Microwaves and gamma waves are mechanical.

• Radar waves and Radio. Radar is mechanical. Radio waves are electromagnetic.

• Microwaves and Radio waves. Both of these are electromagnetic waves.

Examine the wave diagrams in the picture.

Two-Part Question

Part One: Contrast transverse waves and longitudinal waves

Part Two: Are these waves mechanical or electromagnetic

• Part One: Transverse-particles move parallel, longitudinal-particles move perpendicular

  Part Two: These types of wave are mechanical, not electromagnetic.

• Part One: Transverse-particles move perpendicular, longitudinal-particles move parallel

  Part Two: These types of wave are mechanical, not electromagnetic.

• Part One: Transverse-particles are reflected, longitudinal-particles are refracted

  Part Two: These types of wave are electromagnetic, not mechanical.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

The waves used to carry any type of signal are called

Tags

NGSS.MS-PS4-3

The reflection of light inside an optical fiber.

Tags

NGSS.MS-PS4-2

Which two waves are used to carry signals along a thin transparent fiber?

• light waves

• radio waves

• microwaves

• infrared waves

The waves in the electromagnetic spectrum that are used for communications are...

• infrared, light, ultraviolet, microwave

• radio wave, microwave, x-ray, infrared

• infrared, radio wave, light, microwaves

• light, infrared, ultraviolet, radio wave

Tags

NGSS.MS-PS4-3

Which among these waves carry more information when used in communications.

• radio wave

• infrared

• light

• microwave

Tags

NGSS.MS-PS4-3

______________ are used for satellite TV.

Tags

NGSS.HS-PS4-5

Which type of wave is primarily used in mobile phone communication?

• Radio waves

• Microwaves

• Infrared waves

• Ultraviolet waves