Waves Investigation 4 Review

The process of changing the amplitude of a carrier wave to transmit information

• Amplitude modulation
• Wavelength modulation
• Frequency modulation
• Crest modulation

Smooth and continuous data

• analog
• digital
• pulse
• binary

Tags

NGSS.MS-PS4-3

Optical fibers work on the principle of

• total internal refraction
• total internal absorption
• total internal reflection
•  
  total internal flow

What can happen if an optical fiber is bent too far?

• The light will reflect out of the fiber
• The light will refract out of the fiber
• The light will leak out of the fiber
• The light will get trapped in the fiber

You can increase the resolution of an image by

• increasing the amplitude of the carrier wave
• increasing the number of pixels
• increasing the rate of transmission
• increasing the frequency of the carrier wave

What kind of waves can be modulated?

• Analog only
• analog and digital
• Digital only
• neither analog nor digital

What kind of waves are used as carrier waves?

• infrared waves
• it depends on the frequency
• radio waves
• light waves

Which of the waves is an AM signal?

• Top
• Middle
• Bottom

Which of the waves is an FM signal?

• Top
• Middle
• Bottom

Radio stations all have a carrier wave with a specific assigned ____________.

• amplitude
• frequency
• wavelength