Question detail
Which option best applies resultant force for Newton's laws of motion in AQA GCSE Physics Forces?
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. 400 kg — definition focus for resultant force
- B. This confuses mass and weight and does not answer Newton's laws of motion.
- C. This is too vague because it does not use the force or motion quantity named in the objective.
- D. This reverses the physical cause and effect for Forces and motion.
Answer
The correct answer is: 400 kg — definition focus for resultant force
Explanation
The correct option is 400 kg — definition focus for resultant force. 400 kg — definition focus for resultant force is correct because it matches the approved learning objective to calculate mass from resultant force and acceleration. This answer belongs to Newton's laws of motion within Forces and motion, so it must use precise AQA GCSE Physics forces and motion vocabulary. The other options are wrong because they either confuse mass and weight, omit the required force or motion condition, or move away from the exact subtopic being tested.
Common mistake
Common Mistake in Calculating Mass
Students often confuse the formula for calculating mass from resultant force and acceleration, sometimes using the wrong equation or misinterpreting the variables.
To calculate mass, use the formula: mass = resultant force / acceleration. Ensure you correctly identify resultant force in newtons and acceleration in m/s².
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