Light
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. LIGHT
A. A visual attribute of things that results from the light they emit or transmit or reflect (plural)
2. COLOURS
B. The change in direction of a propagating wave when passing from one medium to another
3. RED
C. An ordered array of the components of an emission or wave
4. BLUE
D. Shade within clear boundaries
5. SPECTRUM
E. The ___ that a line makes with a line perpendicular to the surface at the point of ___
6. VIOLET
F. Any of numerous low-growing violas with small flowers
7. INDIGO
G. To cause to separate and go in different directions
8. GREEN
H. The color of a banana
9. YELLOW
I. A poker hand with 5 consecutive cards
10. ORANGE
J. The color of grass
11. REFLECTION
K. The phenomenon of a propagating wave being thrown back from a surface
12. REFRACTION
L. An electrical device that alters the frequency spectrum of signals passing through it (plural)
13. STRAIGHT
M. Not transmitting or reflecting light or radiant energy
14. TRANSLUCENT
N. Allowing light to pass through diffusely
15. WHITE
O. What lets us see; the opposite of dark
16. PRISM
P. The color of the sky on a clear day
17. MIRRORS
Q. Something regarded as a ___ example
18. ANGLE OF INCIDENCE
R. Citrus fruit that shares its name with a color
19. NORMAL
S. The color of snow
20. FILTERS
T. A polyhedron with two congruent and parallel faces and whose lateral faces are parallelograms
21. SHADOW
U. The color of a fire truck
22. PRIMARY COLOURS
V. A blue dye obtained from plants or made synthetically
23. OPAQUE
W. Polished surface that forms images by reflecting light (plural)
24. DISPERSE
X. Any of three colors from which all others can be obtained by mixing (plural)