Quiz on Electromagnetic Radiation

How does electromagnetic radiation travel?

• In waves at the speed of sound in a vacuum

• In waves at the speed of light in a vacuum

• In straight lines at the speed of light in a vacuum

• In waves at the speed of light in a medium

Which of the following is NOT a property of electromagnetic waves?

• Wavelength

• Frequency

• Amplitude

• Speed of light

Which of the following is NOT a characteristic of radio waves?

• Can penetrate walls

• Used for WiFi

• Used for X-ray imaging

• Used for mobile phone communications

Radio waves are used in which type of broadcasting?

• AM/FM radio broadcasting

• Satellite broadcasting

• Cable broadcasting

• Internet broadcasting

Which of the following is true about radio waves?

• They have the shortest wavelengths.

• They are used in medical imaging.

• They can travel long distances.

• They are visible to the human eye.

Microwaves are used in which of the following systems?

• Radar systems

• GPS systems

• Infrared systems

• Bluetooth systems

Which of the following is NOT a use of infrared light?

• Thermal imaging cameras

• Remote controls

• Optical fibers for communication

• X-ray imaging

What type of technology often uses near-infrared for enhanced visibility in low light conditions?

• Night vision technology

• Solar energy technology

• Microwave technology

• Radio technology

What range of wavelengths can human eyes detect?

• 100 to 300 nanometers

• 380 to 700 nanometers

• 500 to 800 nanometers

• 200 to 600 nanometers

Which of the following colors has the longest wavelength in the visible spectrum?

• Blue

• Green

• Red

• Violet