Exam-style question
Try this first
A particle has u = 4 m s^-1, a = 2 m s^-2 and t = 5 s. Find v.
- A.14 m s^-1
- B.18
- C.10
- D.28
Model answer
What a good answer should say
- The correct answer is 14 m s^-1.
This answer is tied to the objective: Q1 Understand and use the language of kinematics, including position, displacement, distance travelled, velocity, speed and acceleration..
Explanation
Why this works
Use the explanation to connect the worked answer back to Q1 Understand and use the language of kinematics, including position, displacement, distance travelled, velocity, speed and acceleration..
Trace the calculation before choosing. The verified method for Kinematics language gives 14 m s^-1; no later explanation is allowed to change that value.
Maths method check
- Topic focus: Mechanics.
- Question style: practice.
- Reasoning demand: analysis.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
No common mistake is linked to this question yet.