Energy and Waves Test J. Blackwell Write the letter of the correct answer on a separate sheet of paper. 1. A generator transforms energy from a. Electrical to mechanical b. Mechanical to electrical c. Sound to electrical d. None of the above 2. A solar battery transforms energy from a. Electrical to mechanical b. Solar to electrical c. Solar to mechanical d. None of the above 3. A light bulb transforms energy from a. Radiant to electrical b. Electrical to heat c. Heat to radiant d. None of the above 4. A skateboarder has the most potential energy when he is a. At the top of the ramp b. At the bottom of the ramp c. Between the top and bottom d. None of the above 5. A skateboarder has the most kinetic energy when he is a. At the top of the ramp b. At the bottom of the ramp c. Between the top and bottom d. None of the above 6. Which type of energy is produced by burning and friction a. Thermal b. Radiant c. Kinetic d. Electrical 7. Which type of energy is produced by sunlight, x-rays, and microwaves? a. Thermal b. Radiant c. Electrical d. None of the above 8. Batteries, wood, matches, coal, and gasoline all store a. Heat energy b. Radiant energy c. Chemical energy d. None of the above 9. Simple machines, motors, windmills, hydroelectric dams, and rubber bands all produce a. Heat energy b. Electrical energy c. Mechanical energy d. None of the above 10. Which of the following is NOT a way that energy is transferred? a. Convection b. Conduction c. Radiation d. All of the above are ways to transfer energy 11. Energy transferred through currents in the air and liquids is a. Conduction b. Convection c. Radiation d. None of the above 12. Energy transferred through direct contact is a. Conduction b. Convection c. Radiation d. None of the above 13. Energy transferred by waves through space is a. Conduction b. Convection c. Radiation d. None of the above 14. Which of the following is NOT a good insulator of energy? a. Wood b. Plastic c. Copper d. None of the above 15. Which of the following is an excellent conductor of energy? a. Copper b. Glass c. Wood d. None of the above 16. The two general categories of waves are a. Potential and kinetic b. Mechanical and electromagnetic c. Transverse and longitudinal d. None of the above 17. Mechanical waves must move through a medium such as a. Empty space b. Solid, liquid, or gas c. Energy d. None of the above 18. Which type of wave would be capable of moving through a vacuum of empty space? a. Sound waves b. Heat waves c. Radiant waves d. None of the above 19. The top of a wave is called the a. Wavelength b. Amplitude c. Trough d. None of the above 20. The bottom of the wave is called the a. Crest b. Trough c. Amplitude d. None of the above 21. The distance between the crest of one wave and the crest of the next wave is the a. Amplitude b. Wavelength c. Trough d. None of the above 22. The height of a wave is the a. Amplitude b. Wavelength c. Crest d. None of the above 23. How many waves pass a given point in a given time is the a. Amplitude b. Wavelength c. Frequency d. None of the above 24. Which type of wave has up and down movement? a. Transverse waves b. Compression waves c. Longitudinal waves d. None of the above 25. Which type of waves push against each other in a straight line? a. Transverse waves b. Compression waves c. Sound waves d. None of the above 26. Waves with higher amplitudes are a. Softer b. Louder c. Higher pitched d. None of the above 27. Waves with higher frequency are a. Softer b. Louder c. Higher pitched d. None of the above 28. Which determines the color of a light wave? a. Frequency b. Pitch c. Amplitude d. None of the above 29. What is used to separate sunlight into variously colored waves? a. Insulators b. Conductors c. Prisms d. None of the above 30. Light waves travel in a. Herds b. Flocks c. Packs d. Straight lines