Grade 6 Ch.1 revision quiz

Objects that produce their own light are called a light _______.

• reflection

• sensor

• source

• inversion

The phenomenon of being able to see things after turning on a light switch tells us that the main _______ of light is to help us see in the dark.

• path

• reflection

• use

• size

Observe the paths of sunlight passing through the forest. This shows that light travels in a:

• curved line

• scattered way

• winding path

• straight line

We are able to see most objects that do not emit light because they _______ light into our eyes.

• absorb

• reflect

• emit

• block

Which type of surface reflects light regularly?

• Rough surfaces

• Aluminium foil

• Smooth surfaces

• Scattered surfaces

Light reflected off a mirror is generally:

• scattered

• clearer

• irregular

• darker

The image formed in a plane mirror is:

• larger than the real object

• smaller than the real object

• vertically inverted

• the same size as the real object

The images formed in a convex mirror are always laterally inverted and:

• larger than the real objects

• the same as the real objects in size

• smaller than the real objects

• vertically inverted

The main advantage of using a light sensor in street lights or electronic products is to:

• increase reflection

• cause scattering

• save energy

• laterally invert the image

Which type of light is considered strong light that can cause injury if we look at it directly?

• Light from a candle

• Light from a mirror

• Light from a torch

• Light from a low-intensity LED