Visible Light & The Human Eye

1. What determines the color of an OPAQUE object?

• The color that it absorbs
• The color that it reflects

2. A pink opaque water bottle is every color except ___________.

• Red
• Pink
• Blue

3. The primary colors of LIGHT are ______________________.

• red, yellow, blue
• cyan, magenta, yellow
• red, green, blue

4. The primary colors of PAINTS (or pigments) are _______________________.

• red, green, blue
• red, yellow, blue
• cyan, magenta, yellow

5. When the primary colors of LIGHT are mixed together, your brain perceives what color?

• black
• white
• brown
• grey

6. When the primary colors of PAINT (pigment) are mixed together, your brain perceives what color?

• white
• black
• brown
• grey

7. Tissue paper scatters light as it passes through it. You would say that the tissue paper was ___________________.

• transparent
• opaque
• translucent

8. A glass window transmits light through it. You would say that the window is ______________________.

• translucent
• opaque
• transparent

9. You would say that an object that absorbs or reflects all light that hits it is a(an) _______________________ object.

• translucent
• transparent
• opaque

10. What is the purpose of the iris in an eye?

• To produce colors
• To allow light to enter the eye
• To regulate the amount of light entering the eye
• To adjust the shape of the lens