Radio waves

Hertz (Hz) is an SI unit for which of the following measurement?

• distance

• frequency

• mass

• time

Tags

NGSS.HS-PS4-1

Which of the following materials allows the flow of radio waves?

• conductor

• inductor

• insulator

• resistor

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

The following are known scientists. Who among them first predicted that radio waves existed

• Galileo Galilee

• Guglielmo Marconi

• Isaac Newton

• James Clerk Maxwell

Which of the following uses radio waves?

• Mobile phones

• Satellites

• Televisions

• All of the these

Tags

NGSS.HS-PS4-5

It is an intense burst of radio-frequency energy lasting for a fraction of a second.

• Microwave

• Radio pulse

• Sound

• Ultrasound

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which theory was confirmed by the discovery of Heinrich Hertz?

• Galilean Relativity

• Maxwell’s Electromagnetic Theory

• Newtonian Mechanics

• Special Relativity

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Heinrich Hertz was a famous physicist widely known for his discovery of what?

• Electromagnetic waves

• Gravity

• Magnetism

• Photons

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Based on the electromagnetic spectrum, which of the following do radio waves have?

• High frequency and long wavelength

• High frequency and short wavelength

• Low frequency and long wavelength

• Low frequency and short wavelength

Tags

NGSS.HS-PS4-1

Janus has to research and give a presentation to his class on among the different types of electromagnetic waves. Which of the following would be impossible for him to work on?

• Infrared

• Microwave

• Radio wave

• Ultrasound

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Radio waves use ultra-high frequency band to deliver which of the following?

• Email

• Music

• Signal

• Text Message

Tags

NGSS.HS-PS4-5