Digital & Analog Waves

Which of the following is an analog technology?

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Tags

NGSS.MS-PS4-3

What kind of wave is this?

• analog

• digital

• neither

Tags

NGSS.MS-PS4-3

Which type of waves can be stored as binary code?

• analog

• digital

• both analog and digital

• neither

Tags

NGSS.MS-PS4-3

When you send a text message to the friend, what happens first after you have typed your message?

• the phone encodes the letters of your message using ones and zeros

• the phone sends an analog wave representing your message to another phone

• the phone produces an electromagnetic wave with constant amplitude and frequency

• the phone decodes the zeros and ones and converts them into letters

What kind of wave is this?

• analog

• digital

• neither

Tags

NGSS.MS-PS4-3

Which type of wave is it easier to remove "noise" from when sending information from one place to another?

• analog

• digital

• both are equally difficult to remove noise from

• neither type of wave picks up noise

Tags

NGSS.MS-PS4-3

Which type of wave is best described as smooth and continuous?

• analog

• digital

• both analog and digital

• neither

Tags

NGSS.MS-PS4-3

Which type of wave picks up background static or "noise" when being sent from one place to another?

• analog

• digital

• both analog and digital

• neither

Tags

NGSS.MS-PS4-3

What type of waves are most often used in sending digital signals through cell phones or other communication devices?

• radio waves

• mechanical waves

• ultraviolet waves

• infrared waves

Tags

NGSS.MS-PS4-3

True or false: Both analog and digital waves can be used to send messages or other communication from one place to another.

• True

• False

Tags

NGSS.MS-PS4-3