9.4 - The Electromagnetic Spectrum

Question 1

Electromagnetic Spectrum

Answer 1

Complete range of wavelengths of energy radiated as electric and magnetic fields.

Question 2

Radio Waves

Answer 2

Low energy electromagnetic waves with a much lower frequency and longer wavelength than visible light.

Question 3

Infra-Red Radiation

Answer 3

Invisible Radiation emitted by all warm objects. You feel infra-red as heat

Question 4

Visible Light

Answer 4

Very Sammy part of the electromagnetic spectrum to which our eyes are very sensitive.

Question 5

Ultraviolet Radiation

Answer 5

Invisible radiation similar to light but with a slightly higher frequency and more energy.

Question 6

X-rays

Answer 6

high-energy electromagnetic waves that can be transmitted through solids and provide information about their structure.

Question 7

Gamma Rays

Answer 7

High-energy electromagnetic radiation produced during nuclear reactions. They have no mass and travel at the speed of light.

Question 8

Electromagnetic Waves

Answer 8

Electromagnetic energy that’s transmitted as moving electric and magnetic fields. There are many different types of electromagnetic energy.