Question detail
Forces and motion scenario: weight and normal contact force act on one object. 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.
At a glance
MCQ
Type
practice
Style
Topic
Forces and motion
Question
- A. In the book on table scenario, apply that to explain that an object can accelerate when its direction changes while keeping scalar versus vector quantities separate.
- B. In the book on table 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 book on table 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 book on table 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 weight and normal contact force act on one object, 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 5, 9, and 12 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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