Edexcel GCSE Physics Topic 5 Light and the electromagnetic spectrum overview quiz quiz

The normal

The surface

The reflected ray

The horizontal

Specular reflection

Diffuse reflection

Total internal reflection

Refraction

Light going from a less dense to a denser medium, below the critical angle

Light hitting a mirror straight on

Light going from a denser to a less dense medium, above the critical angle

Light of any angle in air

A real, inverted image on the far side

No image of the object at all

A real and magnified image of the object

A virtual, upright image

A shorter focal length gives a higher power

A shorter focal length always gives a lower power

The power of the lens does not depend on the focal length at all

A longer focal length always gives a higher power

It reflects the blue light straight back, so it still appears bright red as usual

There is no red light for it to reflect, so it absorbs the blue and appears black

It transmits the blue light right through itself and lets it pass out the other side

Blue light has no effect at all on a red object, which keeps its colour

Transmits all the colours of the white light unchanged

Absorbs the green light and transmits all of the rest

Transmits green and absorbs the other colours

Adds extra green light into the beam as it passes

Gamma, X-ray, ultraviolet, visible, infrared, microwave, radio

Visible, infrared, radio, microwave, ultraviolet, X-ray, gamma

Radio, infrared, microwave, visible, X-ray, ultraviolet, gamma

Radio, microwave, infrared, visible, ultraviolet, X-ray, gamma

They all travel at the same speed in a vacuum

They are all longitudinal waves like sound

They all need a material medium in order to travel

They all have exactly the same frequency as each other

Broadcasting radio and television signals

Sterilising medical equipment

Cooking and heating up food quickly

Sending signals from television remote controls

They are far too cold and freeze the body's cells

They have very long wavelengths and low frequencies

They are ionising and can damage cells and DNA

They travel far too slowly through the human body

Shiny silver

Shiny white

Polished metal

Matt black