Question detail
A car of mass 1200 kg is accelerated by a constant force of 3000 N. Calculate the work done on the car when it moves a distance of 50 m.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
A car of mass 1200 kg is accelerated by a constant force of 3000 N. Calculate the work done on the car when it moves a distance of 50 m.
Answer
150000 J
Explanation
The answer is strong because it applies the work done formula, W = F × d, where F is the force and d is the distance. This question tests the understanding of how work done relates to force and distance. This answer is linked to Energy stores and systems because it applies the learning objective: Calculate changes in energy when a system is changed by work done by forces.. It shows the Physics relationship clearly and keeps energy, power, work done and efficiency terms distinct where they appear.
Common mistake
Common Mistake in Energy Calculation
Students often confuse the work done by forces with the energy stored in a system, leading to incorrect calculations.
Ensure to clearly differentiate between work done and energy changes in a system. Remember that work done by forces results in energy transfer, which can change the energy stores in the system.
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