What happens to light rays that pass through a lens?
They are absorbed
They are reflected
They are refracted
Which type of lens is thicker in the middle than at the edges?
Convex
Diverging
Concave
Which type of lens causes light rays to diverge?
Converging
Which type of lens is used in a camera?
Why does the sky appear to be blue?
Clouds reflect the colour of the oceans
Molecules in the atmosphere scatter blue light the most
Molecules in clouds absorb blue light
Which word is used to describe a light ray being passed through a material?
Transmitted
Absorbed
Reflected
Which colour within the visible light spectrum has the highest frequency and shortest wavelength?
Green
Violet
Red
What type of wave are sound waves?
Longitudinal
Transverse
Electromagnetic
Which seismic waves are transverse waves? - Higher
P-waves only
S-waves only
P-waves and S-waves
Which method is used to detect objects underwater? - Higher
Ultrasound scans
Echo sounding
Seismic waves