4-PS4-2 How Can We See Objects?

We can see because of _______________

• photons

• black holes

• dark energy

• light

Our brain _______________ the light into what we see.

• explains

• translates

• reflects

• dissects

Light travels in _______________ much like water

• groups

• bunches

• swarms

• waves

The return of a wave of energy after it strikes a surface is called _______________

• rebound

• reveration

• reverberate

• reflection

When light reflects from a smooth surface all of the light rays reflect ________________

• equally, but in different directions

• in the same direction

• in different directions

• into chaos

Diagram shows a phenomenon occurs when the spotlight is directed onto a mirror surface. What is the principle of light shown in the situation?

• Light travels in a straight line

• Refraction of light

• Reflection of light

• Light travels in parallel

The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?

• 
• 
• 
• 

The following diagram shows a driver who could see the image of a vehicle behind him without turning his back.

Why?

• Light travels in a straight line

• Light is refracted

• Light is reflected

• Light travels in two different mediums

How does light move?

• zig-zag
• up and down
• scattered
• straight line

Which of these is the best reflector of light?

• shiny metal
• white paper
• carpet
• wood