a pattern of dots and dashes, each one making up a letter or number

• Morse code

• binary code

• pixels

• bits

How does a cell phone send a picture to another cell phone?

• It changes the picture into text.

• It sends the picture through sound waves.

• It downloads the picture into light waves.

• It codes the picture into digital information.

Tags

NGSS.MS-PS4-3

Digital devices use _____ to send and transmit information.

• binary code

• Morse code

• pixels

• bits

Tags

NGSS.MS-PS4-3

A remote (also called a transmitter) uses light to carry signals from the remote to the device it controls. It emits pulses of invisible infrared light that correspond to specific binary codes. These codes represent commands, such as power on, volume up, or channel down.

A remote control sends signals to a television through:

• sound waves

• wires

• light waves

• binary code

Tags

NGSS.MS-PS4-2

A clear, bright image has:

• lots of pixels

• very few pixels

• lots of data

• binary code

What invention made it possible to communicate across long distances with electricity and Morse code?

• telephone

• telegraph

• television

• email

Images are made of millions of tiny dots called:

• Morse code

• binary

• bits

• pixels

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

• light waves

• sound waves

• radio waves

• Morse code

Tags

NGSS.MS-PS4-2

Which of the following graphs represents a digital wave?

• 
• 

Tags

NGSS.MS-PS4-3

Which of the following is an analog technology?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-3