Write TRUE if the statement is correct. Write FALSE if the statement is wrong., 1. Light always travels on a straight line._______ The light that strikes a thick cardboard bends, and finds another way to pass through it.____, 2. Light rays could not be blocked and they could pass through all types of materials since they, travel on a straight line.________, 3. A laser is a narrow but powerful beam of light capable of travelling far distances on a, straight line._____, 4. Optical fibers are used in communication, medicine and industry.________, 5. Light can be reflected if it is directed towards a mirror._______, 6. Refraction is the bouncing back of light that strikes a clear surface._________, 7. When somebody faces a mirror, his reflection can be seen in reversed manner.________, 8. Light travels faster in air than in liquids._________, 9. The speed of light remains the same even if it travels from one material to another._____, 10. Echo is the term used for the sound that is reflected back to its source._____, 11. Bats and dolphins used echolocation to locate their food and determine their direction.___, 12. Only animals have the ability to use echolocation.———, 13. The sea floor is mapped using echolocation.———-

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Write TRUE if the statement is correct. Write FALSE if the statement is wrong.


1. Light always travels on a straight line._______ The light that strikes a thick cardboard bends
and finds another way to pass through it.____
2. Light rays could not be blocked and they could pass through all types of materials since they
travel on a straight line.________
3. A laser is a narrow but powerful beam of light capable of travelling far distances on a
straight line._____
4. Optical fibers are used in communication, medicine and industry.________
5. Light can be reflected if it is directed towards a mirror._______
6. Refraction is the bouncing back of light that strikes a clear surface._________
7. When somebody faces a mirror, his reflection can be seen in reversed manner.________
8. Light travels faster in air than in liquids._________
9. The speed of light remains the same even if it travels from one material to another._____
10. Echo is the term used for the sound that is reflected back to its source._____
11. Bats and dolphins used echolocation to locate their food and determine their direction.___
12. Only animals have the ability to use echolocation.———
13. The sea floor is mapped using echolocation.———-

Answer:

1true

2true

3true

4false

5true

6true

7true

8false

9false

10true

11true

12true

13false

Explanation:

baka po maka tulong ito hehhehe


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