63. If you use some appliances, you observe that after few minutes, electrical energy is always produced
A. Light Energy
C. Sound Energy
B. Heat Energy
D. Mechanical
64. When we turn on the television, electrical energy changes into light and
A. Sound
B. Heat and Sound
C. Heat and Light
D. Heat and Chemical
65. When we talk on the cellular phones, the speaker of the phone on the other end changes the electrical energy/ electromagnetic waves back into
A. Heat Energy
C. Sound Energy
B. Light Energy
D. Electrical Energy
66. In using door bells and buzzers, electrical energy is transformed to
A. Sound Energy
C. Electrical Energy
B. Heat Energy
D. Chemical Energy​