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