Topic 1 - Visible Light And The Solar System (&Waves)

Question 0

Define wavelength

Answer 0

Distance from peak to peak (m)

Question 1

Define waves

Answer 1

A wave transfers energy without transferring matter

Question 2

Define amplitude

Answer 2

Maximum height of the wave from displacement point (m)

Question 3

Define frequency

Answer 3

Wave frequency is the number of waves passing through one pinch each secon (Hz)

Question 4

What is the formula to measure the speed of waves?

Answer 4

Speed (m/s) = wavelength (m) x frequency (Hz)

Question 5

(Oscillations is another word for vibration)

Define transverse waves

Answer 5

Waves where the oscillations are perpendicular to the wave direction

• e.g. Electromagnetic waves
• e.g. Water waves

Question 6

(Oscillations is another word for vibrations)

Define longitudinal waves

Answer 6

Waves where the oscillations we parallel to the wave direction
-e.g. Sound waves

Question 7

What is frequency measured in?

Answer 7

Hertz (Hz)

Question 8

Put the following rays into their place in the electromagnetic spectrum, starting with the highest frequency:
X-rays ultraviolet microwaves infrared gamma-rays visible

Answer 8

Gamma rays, X-rays, ultraviolet, visible light, infrared, microwaves