Direction: Read and analyze each question then choose the letter of the best answer. Write your answer on the bl beside the number. 1. Which of the following objects you can connect to an X to make the bulbs light? A. rubber B. coin C. wood D. silk 2. In which of the following appliances shows the transformation of electrical energy to heat energy? A. electric fan B. electrical stove C. lamp shade D. electric drill 3. In every energy transformation what is always produced? A. heat B. action C. pressure D. movement 4. What sequence of energy transformation takes place when you switch on the electric bulb? A. light-heat-electrical C. electrical-light-heat B. electrical-heat-light D. heat-electrical- light 5. What energy transformation takes place in Light Rail Transit (LRT) / A. radiant energy to electrical energy C. electrical energy to mechanical energy B. chemical energy to mechanical energy D. mechanical energy to electrical energy 6. Which of the following is the principle in the energy transformation? A. Energy can be created from nothing B. Energy can be created and destroyed C. Heat produced can be transferred to the environment D. Energy can be transformed from one form to another 7. What energy transformation is present in microwave oven? A. electric energy to chemical energy C. electrical energy to mechanical energy B. electric energy to nuclear energy D. electrical energy to heat energy 8. The energy conversion below describes the energy conversion in a Electrical energy Sound energy + heat energy A. radio B. lamp C. toaster D. computer 9. Which of the following machine shows the mechanical to sound energy transformation? A. flat iron B. rice cooker C. alarm clock D. oven toaster 10. What energy transformation took place in a bread toaster? A. Mechanical - Electrical C. thermal - chemical B. Electrical-thermal D. chemical - electrical​