Question

wind blowing over the ocean transfers kinetic energy into the water. this creates waves that can be used to produce electricity. scientists are making a small scale prototype of a device that helps convert wave energy to electrical energy. the diagram below shows the prototype of the device. diagram of conversion of wave energy to electrical energy the prototype consists of an electricity - generating dynamo that is anchored to the bottom of the sea. a dynamo is a generator which converts mechanical energy into electrical energy. as waves move the buoy up and down, the shaft rotates causing the dynamo to produce electricity. what is the advantage of testing a small scale model several times like the prototype above, rather than placing an actual live buoy in the water without testing it? a. it is easier to modify the prototype to increase the cost of the actual live buoy b. it is easier to modify the prototype during testing to better predict optimal design c. smaller designs contribute less pollution to the ocean since they take up less space d. smaller designs last longer since they are not damaged as much by outside weather

Explanation:

Testing small-scale prototypes allows for easier adjustments to the design (e.g., buoy size, shaft mechanism) to identify the most effective configuration before building a full-scale device. This avoids wasting resources on untested full-scale designs and helps optimize performance. Option A is incorrect because modifying prototypes should reduce, not increase, actual costs; C is irrelevant as pollution isn’t the main reason for small-scale testing here; D is false because smaller designs aren’t inherently more durable against weather.

Answer:

B. It is easier to modify the prototype during testing to better predict optimal design