Question

13. The same poles of two magnets will
A. pull
B. not move C. repel
be
if they placed closed to each other.
D. attract
14. Which of the material is not attracted to magnet?
A. steel B. one-peso coin
C. rubber band
D. nail
15. The throwing back by a body or surface of light, heat, or sound without absorbing it.
A. Light path B. Refraction C. Reflection D. All of these options
16. The transfer of heat in solid materials is called
A. convection
B.insulator
C. conduction
D. radiation
17. What may happen to a solid when it is continuously exposed to heat?
A. it may melt C. it may become heavier B. it may expand D. it may decrease in voli
18. Which is TRUE about the characteristics of sound?
A. The loudness of sound decreases as it moves nearer the source
B. The loudness of sound is not affected as you move away from the source of sour
C. Sound is not heard when it is exactly on the same spot as the listener
D. The loudness of sound increases as it moves nearer the source
19. Why does sound become weaker or fainter as it moves away from the observer?
A. the sound spreads to cover a larger area
B. the sound is lowered by the operator
C. the sound spreads to cover a smaller area
D. the sound is already absorbed by the environment​

Answer 1

Answer:

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