Light Reflection & Vision

Which material is least likely to reflect light?

• Glass

• Water

• Aluminum foil

• Black cloth

Which of these does NOT use light reflection to work?

• CD
• Blu-ray disc
• DVD
• USB memory stick

What is the role of the cornea in the human eye?

• To scatter light

• To reflect light

• To absorb light

• To focus light

Which of these is the best reflector of light?

• shiny metal
• white paper
• carpet
• wood

How does the light change direction to get around the sign?

• it bends
• another laser is used
• it goes through the sign
• it is reflected

What makes an image that is reflected upside-down look right-side up?

• glasses
• our brains
• our eyes
• cameras

What does Dr. Jeff use to bring the image of his hand into focus?

• lens
• laser
• camera
• mirror

This illusion used which of these concepts?

• lasers
• special effects
• reflections
• fiber optics

What is the primary function of a lens in optical devices?

• To scatter light

• To reflect light

• To absorb light

• To focus light

What does Zoe use to aim the light at Bert's balloon?

• a sign
• another laser
• a mirror
• none of these