7. Which of the following shows that chemical energy is changed to mechanical and heat energy?
A. egg beater
B. fruit shake blender
c. plugging an electric fan
d. driving a jeepney

8. Electric fan are onc of the needed things inside the house. How is energy change when you plug the electric fan?
A. when the electric fan is plugged, the energy is changed from electrical to wind energy

B. when the electric fan is plugged, the energy is change from sound to heat energy

C. when the electric fan is plugged, the energy is changed from electrical two mechanical energy

D. when the electric fan is plugged, energy is changed from mechanical to electrical energy.

9. you use batteries for your radio to function. which of the following arrangement of energy transformation is correct?

A. chemical energy to sound energy
B. chemical energy to sound energy
C. sound energy to mechanical energy
D. sound energy to chemical energy

10. you use a battery-operated flashlight during a blackout in your hometown which of the following is correctly arrange?

A. chemical energy to light energy to sound energy

B. chemical energy to heat energy to sound energy

C. heat energy to electrical energy to light energy

D. chemical energy to electrical energy to light energy

:)

true or false
1. When an electric fan is used to energy is change from electrical to mechanical energy.

2. When i turn on the tv the energy is change from heat to electrical energy.

3. if we exercise , chemical energy is transformed to mechanical energy.

4. the turbine converts the mechanical energy to electrical energy.

5. The sun is a natural source of light energy.

Ty:)))​