10. Why is it that you are advised not to have octopus connection at home?
a. it overloads the whole circuit
b. it is hard to untangle the wires
c. it is fine to have octopus connections
d. it divides the energy among the appliances
11. What does EM and EM waves stand for?
a. Electromagnet b. electromagnets c. electrical d. electromagnetic
12. Which does not contain a turbine inside to create electricity?
a. geothermal power plant
C. solar power plant
b. hydroelectric power plant
d. wind mill power plant
13. Which of the following objects rely on gravitational potential energy?
a. Bow b. mortar and pestle C. rubber band
d. strings
14. How does a solar vane function?
a. it harnesses the energy from the sun
b. it absorbs energy from the sun and the wind
c. it gathers energy from water heated by the sun
d. turbines turn while absorbing the energy from the sun
15. What is the importance of putting strings in motorcycles?
a. the springs makes the motorcycle lighter
b. the springs makes the motorcycle go faster
c. the springs makes the motorcycle fuel-efficient
d. the springs serve as a shock absorber, making less bumpy
The descriptions gis​