8J Exploring Science Quiz

Which of these statements about light is NOT true?

• Light carries energy

• Light travels in straight lines

• Light does not need a medium to travel

• Light travels slower than sound

What is formed when light does not travel through an object?

• A ray diagram

• A shadow

• A sunbeam

• A spectrum

Which type of material does not let light pass through it?

• Transparent

• Opaque

• Translucent

• Glass

Which surface is best at reflecting light?

• Smooth, matt and pale

• Rough, matt and dark

• Rough, shiny and pale

• Smooth, shiny and pale

How do you see an object that is not a source of light?

• Your eyes give out light which reflects off the object.

• Light given out by the object enters your eyes.

• Light from a light source is reflected off the object and into your eyes.

• Light from a light source is absorbed by the object and enters your eyes.

What is the law of reflection?

• angle of incidence = angle of refraction

• angle of incidence = angle of reflection

• angle of incidence = angle of dispersion

• angle of refraction = angle of reflection

What happens when light changes direction as it travels from one medium to another?

• Reflection

• Refraction

• Inversion

• Total internal reflection

What happens to a ray of light when it travels from a less dense medium to a more dense medium at an angle?

• It bends towards the normal.

• It continues without changing direction.

• It bends away from normal.

• It stops at the edge of the less dense medium.

What is transmitted when white light passes through a green filter?

• White light

• All colours except green light

• No light is reflected

• Green light

Which colour is refracted the least by a glass prism?

• Red

• Yellow

• Blue

• Violet