Let’s Try
Directions: Choose the letter of the correct answer. Write your answers on a separate answer sheet.

1. Electromagnetic waves with the longest wavelengths are___________.
A. Gamma rays C. Radio waves
B. Infrared waves D. X – rays

2. Which of the following does NOT belong in the electromagnetic spectrum?
A. Microwave C. Ultraviolet rays
B. Sound wave D. X – rays

3. In visible light, which color has the longest wavelength?
A. Green C. Violet
B. Red D. Yellow

4. A shirt reflects all light, what color is the shirt?
A. Black C. Magenta
B. Blue D. White

5. Which of the following is a secondary color of light?
A. Blue C. Red
B. Green D. Yellow

6. The color you see is the color that is ________________.
A. absorbed C. interfered
B. diffracted D. reflected

6. Arrange the visible light colors in order from longest wavelength to shortest wavelength.
A. Violet, Indigo, Blue, Green, Orange, Yellow, Red
B. Red, Orange, Yellow, Green, Blue, Indigo, Violet
C. Red, Yellow, Green, Orange, Violet, Blue, Indigo
D. Indigo, Yellow, Red, Blue, Orange, Yellow, Violet