Light in Fifth Grade

What is reflection?

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

• Reflection is the absorption of light by a surface

• Reflection is the bending of light as it passes through a medium

• Reflection is the process of light passing through an object

Give an example of reflection in everyday life.

• Seeing your reflection in a window

• Seeing your reflection in a shadow

• Seeing your reflection in a puddle

• Seeing your reflection in a mirror

Explain refraction.

• Refraction is the emission of light from a source

• Refraction is the absorption of light by a medium

• Refraction is the reflection of light off a surface

• Refraction is the bending of light as it passes from one medium to another due to the change in speed of light.

How does refraction affect the path of light?

• Refraction affects the path of light by bending it when it passes from one medium to another.

• Refraction has no effect on the path of light

• Refraction causes light to slow down

• Refraction causes light to speed up

Define absorption of light.

• Absorption of light is the process where light energy is reflected off an object.

• Absorption of light is the process where light energy is taken in by an object rather than being reflected or transmitted.

• Absorption of light is the process where light energy is emitted by an object.

• Absorption of light is the process where light energy is converted into sound waves by an object.

Name a material that is transparent.

• Metal

• Acrylic

• Plastic

• Glass

What does it mean for a material to be opaque?

• Opaque materials are reflective.

• Opaque materials do not transmit light.

• Opaque materials allow light to pass through easily.

• Opaque materials are transparent.

Provide an example of an opaque material.

• Metal spoon

• Wooden door

• Plastic bottle

• Glass sheet

Describe a translucent material.

• Translucent materials allow light to pass through but diffuse it, making objects on the other side appear blurry.

• Translucent materials absorb all light that passes through

• Translucent materials block all light from passing through

• Translucent materials reflect light in a focused manner

How does a translucent material differ from a transparent material?

• A translucent material is opaque, while a transparent material is translucent.

• A translucent material allows light to pass through without scattering, while a transparent material scatters light.

• A translucent material absorbs light, while a transparent material reflects light.

• A translucent material scatters light, while a transparent material allows light to pass through without scattering.