All about light

What is reflection?

• Reflection is the change in direction of a wavefront at an interface between two different media.

• Reflection is the refraction of light through a medium

• Reflection is the absorption of light by an object

• Reflection is the bending of light around an object

Give an example of reflection of light.

• A spoon appearing to be bigger when put in a glass of water

• Watching a movie on a screen

• Staring at a lightbulb

• Looking at yourself in a mirror

What is refraction?

• Refraction is the bending of light.

• Refraction is the absorption of light.

• Refraction is the reflection of light.

• Refraction is the dispersion of light.

Explain how light bends when it passes through a glass of water.

• Light bends when passing through the glass because of absorption.

• Light bends when passing through the glass because of reflection.

• Light bends when passing through the glass because of refraction.

• Light bends when passing through the glass because of diffraction.

Why does a pencil appear bent when placed in a glass of water?

• Absorption of light

• Diffraction of light

• Reflection of light

• Refraction of light

How does the bending of light in water affect the appearance of a fish in a pond?

• The bending of light in water makes the fish appear transparent.

• The bending of light in water makes the fish appear larger than it actually is.

• The bending of light in water makes the fish appear closer to the surface of the pond.

• The bending of light in water makes the fish appear to be swimming upside down.

What is a natural source of light?

• An object that emits light

• An object that reflects light

• A light source that is made by the nature.

• A light source that is created by human

What is an artificial source of light?

• A light source that is created by an animal.

• An object that appears to be bigger because of refraction.

• A light source that is created by human.

• The sun.

Which of the following is a natural source of light?

• The moon

• A shooting star

• A lighter

• A candle

Which of the following is an artificial source of light?

• The sun

• A glitter ball

• A light bulb

• Fire