Signals

All of the following are types of electromagnetic waves that can be used to transmit signals except ________________.

• sound waves

• light waves

• radio waves

• microwaves

Tags

NGSS.MS-PS4-3

Cell phones convert sound waves into ____, which are sent from tower to tower.

• light waves

• sound waves

• radio waves

• Morse code

Tags

NGSS.MS-PS4-3

What is a method for turning analogue signals into digital?

• Defragging

• Pulse Code Modulation

• DAC

• Levelling

Tags

NGSS.MS-PS4-3

How can a signal be transmitted?

• Tone

• Light

• Electric Pulses

• All of the Above

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-3

Which of the following is an example of an Analog signal?

• 
• 
• Both of these

• Neither of these

Tags

NGSS.MS-PS4-3

"Noise" in information technology is considered

• small and large tubes

• a coded message like morse code

• random signals that alter information signals

Tags

NGSS.MS-PS4-3

A remote control sends signals to a television through:

• sound waves

• wires

• light waves

• binary code

Tags

NGSS.MS-PS4-2

This signal is an electric signal that changes between two values (binary)

• Analog

• Digital

Tags

NGSS.MS-PS4-3

Aspire: Identify the image of an ANALOG signal with NOISE

• 
• 
• 
• 

Tags

NGSS.MS-PS4-1

Aspire: Identify the image of an DIGITAL signal with NOISE

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2