Grade 8 - Review (Reflection, Refraction, Camera & Eyes)

Which one is true for specular reflection?

• the angle of incidence is equal to angle of reflection.

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

• the angle of incidence is smaller than angle of reflection.

What is the function of lens in microscope?

• to make distant objects look closer.

• to make smaller objects look bigger.

• to make the image sharp.

What happens to light when it passes through a lens?

• all of it gets reflected.

• it bends.

• it shatters in different directions.

Which scientific term is used when light changes direction after it goes from one transparent material to another transparent material.

• reflection

• incidence

• refraction

What is meant by the word 'interface'?

• where two substances mix.

• where two substance gets separated.

• where two substances meet.

What happens if the light passes through the interface at 90^o ?

• It gets refracted.

• It does not change direction

• It gets reflected.

• It gets shattered.

When light travels from air to glass, it changes direction ________________.

• towards the normal.

• away from the normal.

What is the angle of reflection equal to?

• The angle of refraction

• The angle of incidence

• The angle of absorption

• The angle of light

Tags

NGSS.MS-PS4-2

What happens when light hits a shiny or smooth surface?

• It disappears.

• It is refracted.

• It is absorbed.

• It is reflected.

Tags

NGSS.MS-PS4-2

What might explain why light travels in a straight line?

• If there is nothing to interfere with light waves, they should travel in a straight line.

• Light waves will always travel in a straight line, even if they come into contact with another object.

• Light waves don't travel in a straight line.

• Light waves travel in a straight line because sound waves travel in a straight line.

Tags

NGSS.MS-PS4-1