On the Move (Kinematics)
Kinematics is the study of motion without considering the forces that cause it. This topic focuses on describing motion in terms of displacement, velocity, and acceleration. You will learn to use the SUVAT equations for objects moving with constant acceleration in a straight line, and how to interpret and draw displacement-time, velocity-time, and acceleration-time graphs. The principles are also extended to two dimensions to analyse projectile motion.
Full topic guide: the detailed syllabus page with worked examples and common mistakes lives at studyvector.co.uk/a-level/physics/paper-1-particles-waves-electricity/on-the-move-kinematics.
Topic preview: On the Move (Kinematics)
Sample stems from the StudyVector question bank (AQA · Edexcel · OCR) — not generic filler text.
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Coverage and provenance
What this page is based on
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Topic explanation
Kinematics is the study of motion without considering the forces that cause it. This topic focuses on describing motion in terms of displacement, velocity, and acceleration. You will learn to use the SUVAT equations for objects moving with constant acceleration in a straight line, and how to interpret and draw displacement-time, velocity-time, and acceleration-time graphs. The principles are also extended to two dimensions to analyse projectile motion.
On the Move (Kinematics) is easiest to revise when it is treated as a precise exam behaviour, not a loose note-taking category. In A-Level Physics, the goal is to recognise how the topic appears in a question, identify the command word, and decide what evidence, method, or vocabulary earns marks. StudyVector keeps this page tied to AQA · Edexcel · OCR language where coverage is available, then routes practice towards the same topic so revision moves from explanation into retrieval.
A strong revision session starts with a short recall check. Write down the rule, definition, process, or method linked to On the Move (Kinematics) before looking at any notes. Then answer one exam-style prompt and compare your answer with the mark-scheme logic: did you make a clear point, support it with the right step, and avoid drifting into a nearby topic? This matters because many lost marks come from almost-correct answers that do not match the expected structure.
Use this guide as the first layer: understand the topic, look at the worked examples, complete the mini quiz, then move into full practice. The full StudyVector practice loop is designed to capture whether mistakes are caused by knowledge, method, language, or timing. That distinction is important. If the error is factual, you need reteaching. If the error is method-based, you need a worked retry. If the error is wording, you need command-word calibration. That is how On the Move (Kinematics) becomes a controlled revision target rather than another page in a folder.
Lost marks → repair task
Why marks are usually lost here
These are the error patterns StudyVector looks for after an attempt. The goal is not a generic explanation; it is one repair move and one follow-up question.
Unit, formula, or method slip
Examiner move: Select the correct method and keep units, substitutions, signs, and rounding visible.
Repair drill: Redo the calculation or method line slowly, naming the formula before substituting values.
Missing chain of reasoning
Examiner move: Show the link between point, method, evidence, and conclusion instead of jumping to the final line.
Repair drill: Write the missing because/therefore step, then retry one isomorphic question.
Weak evidence or data reference
Examiner move: Use a precise value, quote, example, diagram feature, or syllabus term to support the claim.
Repair drill: Add one concrete reference to the answer and remove any generic sentence that does not earn a mark.
Mini quiz
Use these checks before full practice. They test topic recognition, exam technique, and whether you can connect the explanation to a marked response.
1. What should you check first when a On the Move (Kinematics) question appears in A-Level Physics?
- A.The command word and the exact topic focus
- B.The longest paragraph in your notes
- C.A memorised answer from a different topic
2. Which revision action gives the strongest evidence that On the Move (Kinematics) is improving?
- A.Rereading the explanation twice
- B.Answering a timed exam-style question and reviewing lost marks
- C.Highlighting every key phrase in the topic notes
Sample questions
Topic-specific public question previews are still being reviewed. We keep them off public pages until the topic match is safe.
Exam tips
- Read the command word carefully — "explain" needs reasons; "state" expects a short fact.
- For On the Move (Kinematics), show structured working even when you are practising multiple choice — it builds accuracy under time pressure.
- Mark yourself against the mark scheme style: one clear point per mark, in logical order.
- Come back to this topic after a day or two; short spaced reviews beat one long cram.
Worked examples
Example 1
Modelled exam response
A ball is thrown vertically upwards with an initial velocity of 20 m/s. To find the maximum height it reaches, we can use v² = u² + 2as. At the maximum height, the final velocity (v) is 0. Acceleration (a) is -9.81 m/s². So, 0² = 20² + 2(-9.81)s. Rearranging for displacement (s) gives s = -400 / (2 * -9.81) ≈ 20.4 m. The maximum height reached is 20.4 m.
Example 2
Identify the task before answering
Question type: a On the Move (Kinematics) prompt asks for a clear response in A-Level Physics. Step 1: underline the command word. Step 2: name the exact part of On the Move (Kinematics) being tested. Step 3: decide whether the mark scheme wants a definition, method, explanation, comparison, or calculation. Why it works: most weak answers fail before the content starts because they answer the topic generally rather than the exact exam task.
Example 3
Turn feedback into a repair task
Suppose your answer shows partial understanding but loses marks for precision. First, rewrite the missing mark as a short target: "I need to state the mechanism, unit, reason, or evidence explicitly." Then answer one similar question without notes. Finally, compare the second attempt with the first and check whether the same mark was recovered. Why it works: On the Move (Kinematics) improves faster when feedback creates a specific retry, not another passive reading session.
Next revision routes from this subject
Good topic pages should lead naturally into the next useful page. Use these links to stay inside the same strand or jump into the next topic area without starting your search again.
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Common mistakes
- Using SUVAT equations when acceleration is not constant. These equations are only valid for uniform acceleration. For non-uniform acceleration, graphical methods must be used.
- Confusing displacement and distance, or velocity and speed. Displacement and velocity are vector quantities (with direction), while distance and speed are scalar quantities.
- Mixing up horizontal and vertical motion in projectile problems. The key is to treat the horizontal motion (constant velocity) and vertical motion (constant acceleration due to gravity) completely independently.
Exam board notes
Kinematics and the SUVAT equations are fundamental to all A-Level Physics specifications (AQA, Edexcel, OCR). The complexity of projectile motion problems and the emphasis on graphical analysis can differ. Edexcel and AQA often feature multi-stage kinematics problems requiring careful application of both graphical and algebraic methods.
FAQs
What do the gradients of motion graphs represent?
The gradient of a displacement-time graph represents velocity. The gradient of a velocity-time graph represents acceleration.
What does the area under a velocity-time graph represent?
The area under a velocity-time graph represents the displacement of the object. The area under an acceleration-time graph represents the change in velocity.
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