Question detail

Forces and motion scenario: air resistance changes until terminal velocity is reached. Which answer best addresses Acceleration and the objective to explain that an object can accelerate when its direction changes?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Forces and motion

Question

A. In the parachutist scenario, apply that to explain that an object can accelerate when its direction changes while keeping scalar versus vector quantities separate.
B. In the parachutist scenario, mix up scalar versus vector quantities and ignore that.
C. Use a general revision statement without applying Acceleration to the situation.
D. Choose a different forces topic instead of explaining explain that an object can accelerate when its direction changes.

Answer

The correct answer is: In the parachutist scenario, apply that to explain that an object can accelerate when its direction changes while keeping scalar versus vector quantities separate.

Explanation

The correct option is In the parachutist scenario, apply that to explain that an object can accelerate when its direction changes while keeping scalar versus vector quantities separate.. It is correct because the scenario says air resistance changes until terminal velocity is reached, which must be interpreted through Acceleration. This directly supports the learning objective to explain that an object can accelerate when its direction changes. Use values 3, 7, and 10 only if the question asks for a calculation. The answer earns credit by naming the relevant force or motion quantity, using units when needed, and avoiding the boundary error scalar versus vector quantities.

Common mistake

Misunderstanding Acceleration

Students often think that acceleration only occurs when an object speeds up, ignoring changes in direction.

Emphasize that acceleration occurs whenever there is a change in velocity, which includes changes in direction, even if speed remains constant.

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