2nd Assessment - Quick quiz

What is the Law of Reflection?

• The angle of incidence is equal to the angle of refraction.

• The angle of reflection is twice the angle of incidence.

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

• The angle of incidence equals the angle of reflection.

What is the angle of incidence?

• The angle of incidence is the angle between the outgoing ray and the surface.

• The angle of incidence is the angle between two incoming rays.

• The angle of incidence is the angle between the incoming ray and the normal to the surface.

• The angle of incidence is the angle formed by the surface and the ground.

What is the angle of reflection?

• The angle of reflection varies with the type of surface.

• The angle of reflection is half of the angle of incidence.

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

• The angle of reflection is always 90 degrees.

How does the angle of incidence relate to the angle of reflection?

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

• The angle of incidence and reflection are unrelated.

• The angle of incidence equals the angle of reflection.

• The angle of incidence is half of the angle of reflection.

What happens to light when it reflects off a smooth surface?

• Light reflects off a smooth surface at an angle equal to the angle of incidence.

• Light scatters in multiple directions upon reflection.

• Light is absorbed completely by the surface.

• Light passes through the surface without any change.

Give an example of a real-life application of refraction.

• Refraction is the process of making food taste better.

• Refraction is used in car headlights to improve visibility.

• Refraction is applied in the design of smartphones for better battery life.

• Eyeglasses use refraction to correct vision.

What is the definition of refraction?

• Refraction is the scattering of light in all directions.

• Refraction is the reflection of light off a surface.

• Refraction is the bending of light when it passes from one medium to another.

• Refraction is the absorption of light by a medium.

Name a device that uses the principle of refraction.

• Prism

• Mirror

• Lens

• Magnifying glass

Diagram shows the condition of a spoon in a glass of water.

What can be observed about the spoon?

• 
  The spoon looks bent

• The water is clearer.

• The water level rises

• Light is refracted

The ___ is the thing being dissolved.

• 
  solute

• 
  solvent

• mixture

• 
  suspension