Science, asked by salvadordream28, 10 days ago

__14. Which of the following is an example of Mechanical wave?
A. light wave
B. sound wave
C. heat wave
d. microwave
15. Which of the following is an example of electromagnetic wave?
A. sound wave
B. water wave
C. seismic wave
D. heat wave
16. Which of the following would best transmit sound?
A.steel in cabinet
B.water in the ocean C.air in your classroom
D.water in a swimming pool
17. Which of the following cannot be considered a high pitch sound?
A.nagging woman
B.shouting man C. chirping bird
D. growling tiger
18. . What happens if the volume of the speaker is being increased to make the sound louder?
A.amplitude decreases
B.amplitude will not change C.amplitude is constant
D.amplitude increases
19. A sound wave is a _.
A.shock wave
B. transverse wave C. standing wave
D. longitudinal wave
20. . The speed of sound depends on _.
A.pitch
B. loudness c. temperature
D. intensity

II. True or False
Directions: Write TRUE if the statement is correct and FALSE if it is not.
1. Heat is a form of energy.
2. Sunlight is an example of radiation.
3. Heat can only transfer in direct contact.
4. A decrease in temperature means that an object is getting hotter.
5. Heat always transfers from a hot object to a cold object.
6. Warm molecules always rises.
7. Plastic is a good conductor of heat.
8. Gases and liquids are known as fluids.
9. Convection can only take place on solid objects.
10. No heat transfer occurs between two objects which are at the same temperature.
11. Metal is a good conductor of heat.
12. Absorption is not a method of heat transfer.
13. Conduction is the transfer of energy by direct contact.
14. Radiation can travel even without a medium.
15. Glass is a good insulator of heat.
16. Convection happens when there is a direct contact between two objects.
17. Heat does not travel in solids, liquids and gases.
18. Warm molecules sink while cold molecules rise.
19. Convection is the transfer of heat by currents.
____20. Radiation is the transfer of heat through space.

Answers

Answered by raviriotio012002

Answer:

(14) microwaves. (19) transverse waves

Answered by pbw429941

Answer:

Number 14 answer A

Number 15 answer C

Number 16 Answer C

Number 17 Answer A

Number 18 Answer D

Number 19 Answer D

Number 20 Answer C

Explanation:

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