Light and Waves Quiz

What is light?

• A type of sound wave

• A form of electromagnetic radiation

• A form of heat energy

• A mechanical wave

How does light travel?

• As a longitudinal wave through air

• As a transverse wave that requires a medium

• As a transverse wave that does not require a medium

• As a longitudinal wave that does not require a medium

What is a medium in the context of wave propagation?

• The speed of a wave

• The material through which a wave travels

• The frequency of a wave

• The energy of a wave

Which of the following lists the colours of visible light in order of increasing frequency?

• ROYGBIV

• VIBGYOR

• RYBGOIV

• ROYVGBI

What is the law of reflection?

• The angle of incidence is greater than the angle of reflection.

• The angle of incidence equals the angle of reflection.

• The angle of incidence is less than the angle of reflection.

• The angle of incidence and reflection depend on the surface material.

What is a plane mirror?

• A curved mirror that reflects light

• A flat reflective surface

• A mirror that focuses light into a point

• A mirror that scatters light in all directions

Why do different objects appear different colours?

• They emit light of different wavelengths.

• They reflect all wavelengths of light equally.

• They reflect and absorb different wavelengths of light.

• They refract light into different colours.

What is refraction?

• The bending of light when it passes from one medium to another

• The reflection of light from a smooth surface

• The scattering of light in different directions

• The splitting of white light into its component colours

Which type of lens is curved inward?

• Convex

• Concave

• Plane

• Cylindrical

How does the eye use lenses?

• To bend light towards the retina

• To reflect light back into the environment

• To split light into different colours

• To absorb all incoming light