Understanding the Electromagnetic Spectrum

What is the primary use of microwaves mentioned in the conversation?

• Cooking food

• Heating houses

• Connecting mobile phones to networks

• Powering vehicles

How are microwaves related to other forms of light?

• They are completely different

• They are part of the electromagnetic spectrum

• They are a type of sound wave

• They are only used in cooking

Which color of light has the highest frequency?

• Green

• Yellow

• Red

• Blue

What type of light is considered safe for humans?

• Ultraviolet

• Gamma rays

• Infrared

• X-rays

What property of microwaves allows them to cook food?

• They are visible to the human eye

• They resonate with water molecules

• They can be seen in the dark

• They are completely harmless

What can be said about the borders between different types of light in the electromagnetic spectrum?

• They are sharply defined

• They are somewhat arbitrary

• They are universally agreed upon

• They do not exist

Blue light has a shorter __________ and higher frequency than red light.

Which groupings of light are harmful?

• Radio, microwaves & IR

• UV, X-ray & Gamma

• Microwaves, Gamma & X-ray

• UV, IR and Gamma

Light is a form of

• Energy

• Reflection

• Radiation

Which has the longest wavelength and, therefore, the LOWEST frequency/energy

• Gamma Rays

• Visible Light Waves

• Radio Waves

• Infrared Waves