27 Light System Questions and Answers
1. The following are light sources, except....
a. Candle
b. Sun
c. Stone
d. Light
Answer:
c. Stone
2. An object that allows light to pass through is called....
a. clear object
b. Dark thing
c. cloudy thing
d. Chocolate thing
Answer:
a. clear object
3. An example of a clear object is as follows....
a. Clear glass, clean water, milk
b. Clear glass, dirty water, wood
c. Clear glass, ice cubes, clear water
d. Stone, clear water, wood
Answer:
c. Clear glass, ice cubes, clear water
4. To see the shadow at a higher place use ....
a. Periscope
b. Telescope
c. Microscope
d. Binoculars
Answer:
a. Periscope
5. The rays of light that are produced will be regular and parallel when reflection occurs....
a. Irregular
b. Regular
c. Convex
d. Sunken
Answer:
b. Regular
6. Dark objects are objects that...
a. Translucent
b. Clear
c. Not translucent
d. Light
Answer:
c. Not translucent
7. Rainbows occur because the sun's rays experience....
a. Straight vine
b. Description
c. Penetrate clear objects
d. Reflection and refraction by water droplets
Answer:
d. Reflection and refraction by water droplets
8. The change or bending of the direction of the light beam from one substance to another is called
a. Refraction of light
b. light reflection
c. light union
d. Light propagation
Answer:
a. Refraction of light
9. Diffuse reflection occurs when light strikes the surface of an object....
a. Fine
b. Rough
c. Dark
d. Clear
Answer:
b. Rough
10. An example of using a convex mirror is....
a. Car mirror
b. home mirror
c. Glass window
d. Flashlight glass
Answer:
a. Car mirror
11. The resulting image is the same as the object. Reflection occurs in the mirror....
a. Convex
b. Sunken
c. Flat
d. Double
Answer:
c. Flat
12. The image formed by a convex mirror is...
a. Pseudo, upright, minimized
b. Pseudo, inverted, minimized
c. Real, upright, magnified
d. Real, upside down, zoomed in
Answer:
a. Pseudo, upright, minimized
13. Tools that use the process of reflecting light are called....
a. Light
b. Lens
c. Mirror
d. Glass
Answer:
c. Mirror
14. Refraction has meaning....
a. unification
b. Emitting
c. Propagation
d. deflection
Answer:
d. deflection
15. The speed of light is ....
a. 200,000 km/sec
b. 400,000 km/sec
c. 300,000 km/sec
d. 500,000 km/sec
Answer:
c. 300,000 Km/sec
16. The colors in the sky that come from raindrops exposed to sunlight are called....
a. mirage
b. Rainbow
c. Rain
d. Lightning
Answer:
b. Very small things
17. The image formed by a concave mirror is...
a. pseudo, upright, reduced
b. pseudo, inverted, minimized
c. real, upright, magnified
d. real, magnified, and upright.
Answer:
d. Real, magnified and upright
18. All of the following are properties of light, except....
a. can be reflected
b. can be refracted
c. straight
d. creeping back
Answer:
d. Back vine
19. The following is an example of an opaque object, namely....
a. Glass
b. Wood
c. Paper
d. Clear water
Answer:
c. Paper
20. Sunlight can enter the room through a hole. It means that the light....
a. Straight vine
b. Can be deciphered
c. Can penetrate clear objects
d. Can be refracted
Answer:
a. Straight vine
21. In the law of reflection of light, the angle of incidence is equal to ....
a. Reflection angle
b. Corner go
c. Point angle
d. Unidirectional angle
Answer:
a. Reflection angle
22. Rays of light resulting from reflection are regular and parallel are called reflections....
a. Diffuse
b. mix
c. Regular
d. Normal
Answer:
c. Regular
23. Reflection of light that occurs on a flat surface is reflection of ....
a. Regular
b. Unidirectional
c. Irregular
d. Undirected
Answer:
a. Regular
24. An example of the use of a concave mirror is in the tool ....
a. Car mirror
b. Make up mirror
c. Flashlight
d. Glass window
Answer:
c. Flashlight
25. A convex or convex lens collects light. A concave or concave lens is...
a. Spread the light.
b. Bending rays
c. refracts light
d. Unite the rays
Answer:
a. Spread the light
26. So that we can see an object, we need ....
a. Light
b. Voice
c. Hot
d. motion
Answer:
a. Light
27. All objects that can emit light are called....
a. Lamp light
b. light source
c. Bright light
d. luminous thing
Answer:
b. light source
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