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An engineer evaluates the effectiveness of using hydroelectric power to generate energy. She bulds a tin water wheel and attaches a string that has a
An engineer evaluates the effectiveness of using hydroelectric power to generate energy. She bulds a tin water wheel and attaches a string that has a weight at the end. Water is poured onto the wheel using a small and large funnel. Under both conditions, multiple trials are performed to obtain preliminary results. These results showed that the water had to be poured in a specific location on the water wheel in order for the wheel to spin. Result 1: When a 70 kilogram weight was placed at the end of the string it took 11 seconds for the water wheel to lift the weight using a small funnel. Result 2: When a 70 kilogram weight was placed at the end of the string it took 7 seconds for the water wheel to lift the weight using a large funnel. The engineer concluded that water flow influences the amount of energy produced. Which piece of evidence from the passage supports the hypothesis that energy produced from the water wheel wilit the weight? The wheel needs to have a string attached to the weight. The wheel needs to be constructed from a tin material. Use of a large funnel allows the weight of the string to move faster. More water is required to move the weight when a small funnel is used
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