Linear and Angular Motion | OCR A-Level Physical Education (H555)
Linear and Angular Motion
- 72 questions
- 5 subtopics
- Component 01: Physiological factors affecting performance
- Component 01
Linear and Angular Motion is examined in Component 01, Physiological factors affecting performance.
It covers linear motion, distance and displacement, speed, velocity and acceleration, graphs of linear motion, angular motion and the axes of rotation and moment of inertia and conservation of angular momentum.
Sample questions from Linear and Angular Motion
Answer each one closed book first, then open the answer.
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Linear motion, distance and displacement
Why is a 100 m sprinter's movement described as a mix of linear and angular motion?
Show the answer
The sprinter's centre of mass travels in a straight line down the track. The limbs rotate about the joints, so the sprint combines linear and angular motion. -
Linear motion, distance and displacement
A runner completes one lap of a 400 m track. State the distance covered and the displacement.
Show the answer
The distance covered is 400 m. The displacement is 0 m, because the runner finishes where the lap began. -
Speed, velocity and acceleration
A long jumper runs 40 m down a straight runway in 4.4 s. What is the average velocity?
Show the answer
The average velocity is 9.09 m s⁻¹ along the runway. Velocity = 40 m ÷ 4.4 s = 9.09 m s⁻¹. -
Speed, velocity and acceleration
Why is velocity more useful than speed when analysing a netball player's movement?
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Velocity includes direction, so it shows where the player is moving on court. Two players at the same speed may be moving in opposite directions. -
Graphs of linear motion
What does the gradient of a speed/time graph show?
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The gradient of a speed/time graph shows acceleration. A negative gradient shows deceleration. -
Graphs of linear motion
Describe the velocity/time graph of a 100 m sprinter.
Show the answer
Velocity rises steeply at first as the sprinter accelerates out of the blocks. The line then levels off at maximum velocity. A slight fall near the finish shows deceleration. -
Angular motion and the axes of rotation
Give two sporting examples of rotation about the longitudinal axis.
Show the answer
An ice skater spinning on the spot rotates about the longitudinal axis. A discus thrower's turn in the circle is another example. -
Angular motion and the axes of rotation
A diver performs a twisting somersault. Which axes of rotation are involved?
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The somersault turns the diver about the transverse axis. The twist turns the diver about the longitudinal axis.
The 5 subtopics
One subtopic is one session. Work down the list.
| Subtopic | What it covers | Questions |
|---|---|---|
| Linear motion, distance and displacement | Linear motion and how a force through the centre of mass creates it, mixed linear and angular motion, distance and displacement, scalars and vectors, and worked examples on a 400 m lap and an orienteering course. | 13 |
| Speed, velocity and acceleration | Speed, velocity, acceleration and deceleration with their equations, worked examples for a sprinter, swimmer, long jumper, rower and cyclist, changing direction at constant speed, and what average speed hides. | 14 |
| Graphs of linear motion | Gradients and horizontal lines on distance/time and speed/time graphs, area under the curve, velocity/time graphs of a 100 m sprinter and a footballer, and a worked cyclist example. | 14 |
| Angular motion and the axes of rotation | Angular motion from an eccentric force, the diver's take-off, the longitudinal, frontal and transverse axes with sporting examples, twisting somersaults, the golfer's hips, angular velocity and radians. | 15 |
| Moment of inertia and conservation of angular momentum | Moment of inertia and the mass and its distribution, the sprinter's recovery leg, angular momentum, worked diver calculations, conservation of angular momentum in skaters, divers and trampolinists, and tucked against piked somersaults. | 16 |
How the guide is worked
Answering a question from memory stores it far better than reading the answer again. The guide runs that as a fixed procedure on one subtopic at a time, about twenty minutes a session.
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Step 1 · Closed book
Cover the answers. Work through one subtopic and write down what you can. Leave blanks where you have nothing.
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Step 2 · Open book
Go back to the top. Read each printed answer and write it out in full, including the ones you had right.
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Step 3 · Closed book again
Same questions, same order, from memory. The gap between pass one and pass three is the session result.
Read the full method, the return schedule and the research behind it.
Nearby topics
OCR A-Level Physical Education Active Recall Guide
Every topic, not just this one. 2,133 questions with their answers.