1. 1 1Which of the following forms of energy is used to power a computer? AHeat BSound CLight DElectrical 2The illustration shows a hand generator. Turning the handle of the generator causes the bulb to light up. This device changes what type of energy into what other type? AMechanical to electrical BElectrical to sound CThermal to mechanical DLight to thermal Uses of Energy Force, Motion, and Energy

2. 2 Uses of Energy Force, Motion, and Energy 4Which of the following devices is designed to change mechanical energy to sound energy? AGuitar BCandle CBattery DFlashlight 3Campfires are sometimes used to cook food. Which type of energy from the campfire cooks the food? ALight BSound CThermal DElectrical

3. 3 Uses of Energy Force, Motion, and Energy 5The illustration shows a lamp plugged into an outlet. When the lamp is turned on and the bulb is lit, the circuit demonstrates which of the following? ASound energy changing to light energy BElectrical energy changing to light energy CElectrical energy producing mechanical energy DLight energy producing sound and heat energy