Question detail
A car has a mass of 1200 kg and is moving at a velocity of 15 m/s. Calculate its momentum Explain your answer using Momentum and conservation of momentum (HT only) and momentum.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Momentum
Question
A car has a mass of 1200 kg and is moving at a velocity of 15 m/s. Calculate its momentum Explain your answer using Momentum and conservation of momentum (HT only) and momentum.
Answer
The momentum of the car is 18000 kg·m/s.
Explanation
A strong answer should address (HT only) Define momentum as mass multiplied by velocity directly. Use the context of Momentum and conservation of momentum (HT only) within Momentum, then state the relevant forces or motion reasoning with units where needed. The answer is correct when it names the key physics quantity, keeps mass and weight distinct, and links the conclusion back to the approved learning objective.
Common mistake
Confusing Momentum with Kinetic Energy
Students often confuse momentum with kinetic energy, thinking they are the same concept.
Remember that momentum is defined as mass multiplied by velocity (p = mv), while kinetic energy is given by the formula Ek = 0.5 x m x v^2. Focus on the definitions and units of each quantity.
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