Download light study guide - Mr. Phelps` Blog

LIGHT STUDY GUIDE USE YOUR TEXT CHAPTERS 22 & 23
TO ANSWER THESE STUDENT CREATED QUESTIONS
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
1. What is the time it takes for light to travel from the sun to Earth?
a. 80.3 min
c. 3 min
b. 8.3 min
d. 1 min
2. The electromagnetic spectrum is divided into regions by
a. colors.
c. wavelengths.
b. the way they are used.
d. speed.
3. White light is the entire range of
a. colors of visible light combined.
c. gamma rays and X rays.
b. ultraviolet light.
d. EM waves.
4. What wave interaction occurs when waves combine and the resulting wave has a smaller amplitude than the
individual waves had?
a. regular reflection
c. constructive interference
b. diffuse reflection
d. destructive interference
5. The amount a wave diffracts depends on its wavelength and
a. the size of the barrier or opening.
c. speed.
b. frequency.
d. amplitude.
6. Refraction can separate white light into
a. infrared waves.
c. ultraviolet light.
b. different colors.
d. longer wavelengths.
7. Colors of opaque objects are determined by
a. the color of light they transmit.
c. the color of light they refract.
b. the color of light they reflect.
d. the color of light they diffract.
8. When pigments are mixed the result is called
a. color addition.
c. color absorption.
b. color subtraction.
d. color scattering.
9. The formula for calculating how long it takes light to travel a specific distance is
a. time 5 distance 1 speed.
c. time 5 distance 4 speed.
b. time 5 distance 3 speed.
d. time 5 speed 4 distance.
10. What kind of waves are used in radar for detecting the speed of a car?
a. gamma rays
c. infrared waves
b. X rays
d. microwaves
11. What kind of waves can be used to treat some cancerous tumors?
a. gamma rays
c. infrared rays
b. X rays
d. microwaves
12. Earth is 384,000 km from the moon. How long does it take light to travel this distance? Hint: The speed of
light is 300,000 km/s.
a. 1.28 min
c. 0.128 s
b. 12.80 s
d. 1.28 s
13. The moon is 384,000 kilometers from Earth. How long does light take to travel that distance? Hint: The speed
of light is 300,000 km/s.
a. 1.28 seconds
c. 0.78 seconds
b. 12.8 seconds
d. 7.8 seconds
14. Where does Earth get its major source of energy?
a. food
c. photosynthesis
b. fossil fuels
d. EM waves from the sun
____ 15. What causes us to see the color of an opaque object?
a. the colors of light that are reflected
b. the colors of light that diffracted
c. the colors of light that are transmitted
d. the colors of light that are refracted
____ 16. What color of light do you see when looking through a colored translucent object?
a. the color that was diffracted
c. the color that was scattered
b. the color that was absorbed
d. the color that was transmitted
____ 17. What is mixing red, green, and blue light an example of?
a. color matching
c. color subtraction
b. color addition
d. color deficiency
____ 18. What type of electromagnetic waves cause the warmth you feel when you sit in the sun?
a. ultraviolet light
c. infrared waves
b. gamma rays
d. microwaves
____ 19. Plants use photosynthesis to store energy. From where do they get the energy?
a. the sun
c. fossil fuels
b. other plants
d. animals
____ 20. Where are rods and cones located?
a. in the cornea
c. in the iris
b. in the retina
d. in the pupil
____ 21. The membrane that protects the eye and through which light is refracted is the
a. iris.
c. retina.
b. pupil.
d. cornea.
____ 22. What part of the eye detects very dim light?
a. cornea
c. rods
b. lens
d. cones
____ 23. Which of the following uses a laser in its operation?
a. polarized sunglasses
c. light microscope
b. CD player
d. refracting telescope
____ 24. An optical instrument used to see magnified images of tiny nearby objects is a
a. digital camera.
c. reflecting telescope.
b. light microscope.
d. refracting telescope.
____ 25. The complete reflection of light along the inside surface of optical fibers is called
a. radiation.
c. stimulated emission.
b. polarization.
d. total internal reflection.
____ 26. Polarized light consists of
a. light waves that are coherent.
b. light waves that are only one color.
c. light waves that vibrate in only one plane.
d. light waves that vibrate perpendicularly to each other.
____ 27. The aperture of a camera works most like an eye’s
a. lens.
c. pupil.
b. iris.
d. cornea.
____ 28. Which of the following is a true statement about the lens of the eye?
a. It forms a virtual image.
b. It is thinner in its middle than at its edge.
c. It functions like a convex mirror to reflect light onto the retina.
d. It changes thickness to focus on objects at various distances.
____ 29. Which one of the following problems would a driver who has red-green color deficiency face?
a. reading stop signs
b. seeing double
c. distinguishing between stop and go lights
d. checking the rear-view mirror
____ 30. If you are sitting in the back of a classroom and cannot see what’s written on the board, what vision problem
do you have?
a. color blindness
c. nearsightedness
b. color deficiency
d. farsightedness
Matching
Match each item with the correct statement.
TYPE OF ELECTROMAGNETIC WAVES VOCABULARY
a. gamma rays
e. ultraviolet
b. infrared waves
f. visible light
c. microwaves
g. X rays
d. radio waves
____
____
____
____
____
____
____
31.
32.
33.
34.
35.
36.
37.
EM waves used to broadcast television signals
EM waves used in radar
EM waves that make an object feel warmer
EM waves seen in a rainbow
EM waves that can cause sunburn
EM waves used as security devices in airports
EM waves used to treat some forms of cancer
Match each item with the correct statement.
LIGHT WAVE INTERACTIONS VOCABULARY
a. absorption
e. reflection
b. constructive interference
f. refraction
c. destructive interference
g. scattering
d. diffraction
____ 38. a wave interaction in which a ray of light, sound, or heat bounces off a surface that does it does not go
through
____ 39. a wave interaction in which a wave bends as it passes between two substances in which the speed of the wave
differs
____ 40. a wave interaction in which a wave encounters an obstacle or an edge and changes direction
____ 41. a wave interaction in which the energy carried by light waves is transferred to particles of matter
____ 42. a wave interaction that happens when two or more wave overlap and the resulting wave has a greater
amplitude
____ 43. a wave interaction that happens when two or more waves overlap and the resulting wave has a smaller
amplitude
____ 44. a wave interaction with matter that causes light to change its energy, direction of motion, or both
Match each item with the correct statement.
STRUCTURE OF THE HUMAN EYE VOCABULARY
a. back surface of the eye
b. colored part of the eye
c. convex part of the eye that refracts light
d. membrane that protects the eye
e. opening in the eye
f. receptors that detect light
____
____
____
____
____
____
45.
46.
47.
48.
49.
50.
cornea
iris
lens
pupil
retina
rods and cones
Other
INTERPRETING GRAPHICS
Use the figure below to answer the following question.
51. The figure is an example of
a. color matching.
b. color addition.
c. color subtraction.
d. color deficiency.
Use the figure below to answer the following question.
52. The figure is an example of
a. color matching.
b. color addition.
c. color subtraction.
d. color deficiency.
Use the diagram below to answer the following question.
53.
Is the light beam reflecting off a mirror or off a wall? Explain your answer.
58. Describe the image formed in the diagram.
a.
concave mirror forming an upside down, real image
b. convex mirror forming an image
c.
convex lens forming a real image
d.
concave lens forming an image
59. If the object in the diagram were moved closer to the mirror, how would the image change?
CONCEPT MAPPING
60. Use the following terms to complete the concept map below:
short
edges
convex lens
center
concave lens
long