Physics

Question 1

Wavelength

Answer 1

Distance between two points that are in phase: example crest to crest

Question 2

Amplitude

Answer 2

The maximum displacement of a wave from its rest position

Question 3

Frequency

Answer 3

The number of complete wave cycles that pass a given point per second (one HZ equals one cycle per second)

Question 4

What is the relationship between frequency and wavelength

Answer 4

When the frequency decreases, the wavelength increases, vice versa

Question 5

Different types of electromagnetic radiation in order from smallest to largest wavelength and the uses for each type

Answer 5

Gamma rays, cancer treatment
, x-rays, medical imaging,
ultraviolet, sterilization,
visible light photography,
infrared, thermal imaging
, microwaves, cooking
radio waves broadcasting

Question 6

What is the difference between opaque, transparent and translucent?

Answer 6

Opaque - no light transmission, no visibility (wood/metal)

Transparent - complete light transmission, clear visibility, glass/water

Translucent - partial light transmission, blurred visibility, frosted glass

Question 7

What is the index of refraction referred to?

Answer 7

The ratio of the speed of light in a vacuum or air ( C = 3 x 10^8 m/s)