13. The same poles of two magnets will A. pullB. not move C. repelbeif they placed closed to each other.D. attract14. Which of the material is not attracted to magnet?A. steel B. one-peso coinC. rubber bandD. nail15. 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 options16. The transfer of heat in solid materials is calledA. convectionB.insulatorC. conductionD. radiation17. 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 voli18. Which is TRUE about the characteristics of sound?A. The loudness of sound decreases as it moves nearer the sourceB. The loudness of sound is not affected as you move away from the source of sourC. Sound is not heard when it is exactly on the same spot as the listenerD. The loudness of sound increases as it moves nearer the source19. Why does sound become weaker or fainter as it moves away from the observer?A. the sound spreads to cover a larger areaB. the sound is lowered by the operatorC. the sound spreads to cover a smaller areaD. the sound is already absorbed by the environment​