While researching a topic, a student has taken the following notes: • Ducklings expend up
While researching a topic, a student has taken the following notes: • Ducklings expend up to 62.8% less energy when swimming in a line behind their mother than when swimming alone. • The physics behind this energy savings hasn’t always been well understood. • Naval architect Zhiming Yuan used computer simulations to study the effect of the mother duck’s wake. • The study revealed that ducklings are pushed in a forward direction by the wake’s waves. • Yuan determined this push reduces the effect of wave drag on the ducklings by 158%. The student wants to present the study and its methodology. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A) A study revealed that ducklings, which expend up to 62.8% less energy when swimming in a line behind their mother, also experience 158% less drag.
- B) Seeking to understand how ducklings swimming in a line behind their mother save energy, Zhiming Yuan used computer simulations to study the effect of the mother duck
- C) Zhiming Yuan studied the physics behind the fact that by being pushed in a forward direction by waves, ducklings save energy.
- D) Naval architect Zhiming Yuan discovered that ducklings are pushed in a forward direction by the waves of their mother
Correct Answer: D) Naval architect Zhiming Yuan discovered that ducklings are pushed in a forward direction by the waves of their mother
Explanation
The choice that most effectively uses relevant information from the notes to present the study and its methodology is: D) Naval architect Zhiming Yuan discovered that ducklings are pushed in a forward direction by the waves of their mother