Wave Technology

The pipe length of D is 0.65 m. The frequency of the sound produced is 1200 Hz. Calculate the wave velocity.

• 120 m/s

• 600 m/s

• 343 m/s

• 780 m/s

Tags

NGSS.HS-PS4-1

A radio wave is a form of energy that can travel through space. This form is called an/a _____________________ wave.

• microwave wave

• electromagnetic wave

• mechanical wave

• photon wave

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

True or False: A radar is a system that uses reflected radio waves to detect objects and measure their distance and speed.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Describe radio waves:

• The longest electromagnetic wave.

• The shortest electromagnetic wave.

• The highest energy mechanical wave.

• The lowest energy mechanical wave.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The reason your wifi sometimes does not work is because other wifi signals can interfere with it.

• True

• False

Tags

NGSS.MS-PS4-2

The process of making cell phone calls happens almost at the speed of sound.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Numbers in an analog code can have _____ values.

• any

• only high

• only low

• only set

Tags

NGSS.MS-PS4-1

Which type(s) of signal(s) can be easily corrected to remove noise?

• Analog

• Digital

• Both

• Neither

Tags

NGSS.MS-PS4-3

Analog signals can be converted to digital through a process called _____.

• conversion

• processing

• sampling

• translation

Tags

NGSS.MS-PS4-1

Which type(s) of signal(s) can be transmitted as radio waves?

• Analog

• Digital

• Both

• Neither

Tags

NGSS.MS-PS4-3