Question detail
Forces and motion scenario: a gear changes turning effect and rotation speed. Which answer best addresses Required practical: acceleration and the objective to use light gates, data loggers or ticker timers to collect motion data?
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 gear system scenario, apply light gate to use light gates, data loggers or ticker timers to collect motion data while keeping scalar versus vector quantities separate.
- B. In the gear system scenario, mix up scalar versus vector quantities and ignore light gate.
- C. Use a general revision statement without applying Required practical: acceleration to the situation.
- D. Choose a different forces topic instead of explaining use light gates, data loggers or ticker timers to collect motion data.
Answer
The correct answer is: In the gear system scenario, apply light gate to use light gates, data loggers or ticker timers to collect motion data while keeping scalar versus vector quantities separate.
Explanation
The correct option is In the gear system scenario, apply light gate to use light gates, data loggers or ticker timers to collect motion data while keeping scalar versus vector quantities separate.. It is correct because the scenario says a gear changes turning effect and rotation speed, which must be interpreted through Required practical: acceleration. This directly supports the learning objective to use light gates, data loggers or ticker timers to collect motion data. Use values 7, 14, and 14 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 Data Collection Tools
Students often confuse the functions of light gates, data loggers, and ticker timers, thinking they all serve the same purpose in collecting motion data.
Clarify that light gates measure the time an object passes through them, data loggers record data continuously over time, and ticker timers produce a series of dots on tape to indicate motion over intervals.
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