Question

question 15 2 pts which device is used in the examples we have studied to show how human motion can be converted into electrical energy? solar panel hand - crank flashlight wind turbine battery charger question 16 2 pts which of the following is a way to make a generator move as discussed in lesson 3.2? using solar energy spinning or turning a hand crank heating up the generator storing energy in a battery

Explanation:

Question 15: A hand - crank flashlight uses human motion (cranking) to generate electrical energy for the light. Solar panels use solar energy, wind turbines use wind energy, and battery chargers usually get power from an electrical outlet or other power sources, not directly from human motion.
Question 16: Spinning or turning a hand crank can make a generator move as it transfers mechanical energy. Using solar energy is for power generation but not directly for making a generator move in the context of mechanical motion. Heating up a generator doesn't make it move in the way related to power generation principles, and storing energy in a battery is not a way to make a generator move.

Answer:

Question 15: B. Hand - crank flashlight
Question 16: B. Spinning or turning a hand crank