Electromagnetic spectrum

What is the term for the full known range of light, including types invisible to the human eye?

• The Visible Spectrum

• Sound Waves

• The Electromagnetic Spectrum

• Light Waves

What is a key characteristic that distinguishes electromagnetic waves from sound waves?

• Electromagnetic waves require a medium to travel.

• Sound waves can travel through a vacuum.

• Electromagnetic waves can travel through a vacuum.

• Sound waves are always visible.

How do transverse waves oscillate in relation to their direction of motion?

• Parallel

• Diagonally

• Perpendicularly

• Randomly

What is the relationship between the frequency of light and its energy?

• Higher frequency corresponds to lower energy.

• Lower frequency corresponds to higher energy.

• Higher frequency corresponds to higher energy.

• Frequency and energy are unrelated.

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What phenomenon causes the short wavelength blue and violet light to be scattered more by molecules in the air?

• Refraction

• Reflection

• Scattering

• Absorption

Which type of electromagnetic wave is characterized by longer wavelengths than red light and can be felt as heat?

• Ultraviolet

• Microwaves

• Infrared

• Radio waves

What type of electromagnetic wave is specifically used in microwave ovens to heat food by vibrating water molecules?

• Radio waves

• Infrared

• Microwaves

• Ultraviolet

Which type of electromagnetic wave has the shortest wavelength, highest frequency, and therefore the most energy, making it the most damaging to tissues?

• X-rays

• Gamma rays

• Ultraviolet

• Microwaves