EM waves And Matter

Question 1

What is transmission?

Answer 1

When the wave carries on moving once they’ve crossed the boundary, but they may be refracted

Question 2

What is refraction?

Answer 2

Refraction is the wave changing speed and direction as crossing boundary

Question 3

What is absorption?

Answer 3

When energy or waves is transferred to the energy stores of the substance they travel into

Question 4

What is reflection?

Answer 4

Reflection is when the wave bounces back

Question 5

Why does refraction occur

Answer 5

When there is a difference in velocity of an electromagnetic wave in different substances

Question 6

Why do materials interact differently with different parts of the electromagnetic spectrum

Answer 6

Because of the difference in the wavelength, some wavelengths might be transmitted. Others may be reflected. The interaction happens, depending on the wavelength or the material of the wave traveling through

Question 7

What happens when a wave hits a different medium

Answer 7

The different parts of the wave enter the medium at different times hence this leads to a change in speed

Question 8

What causes the wave to bend?

Answer 8

The difference in speed between the parts of the wave in the first medium, and the parts in the second medium, leading to a change in direction