2. When food or liquids become hot, their molecules absorb energy, begin vibrating rapidly, and start to bounce off of each other. As they collide, energy is produced and transferred, which warms and cooks our food. What form of energy is described?
A. Sound Energy B. Heat Energy C. Light Energy D. Electrical Energy
3. The energy produced by vibrating object is _____.
A. Sound Energy B. Heat Energy C. Light Energy D. Electrical Energy
4. Which of the following is the main source of heat and light?
1 point A. light bulb B. sun C. matchstick D. candle
5. Which of the following needed an electrical energy to work?
A. washing machine B. sun C. matchstick D. candle
6. What form of energy is produced by plucking the strings of a guitar?
A. Chemical Energy B. Electrical Energy C. Sound Energy D. Mechanical Energy
7. If we burn a sheet of paper, energy is given off which we see as a flame or describe as a _____. *
A. Chemical Energy B. Electrical Energy C. Sound Energy D. Light Energy
8. Which energy is produced by a moving object like engines, gears, locomotives and other mechanical devices? *
A. Chemical Energy B. Electrical Energy C. Mechanical Energy D. Light Energy
9. The dry cells or battery is an example of what kind of energy?
A. Chemical Energy B. Electrical Energy C. Mechanical Energy D. Light Energy
10. Which of the following is NOT a method of transferring heat energy?
A. Conduction B. Convection C. Ultrasonic D. Radiation
