OCR A Level Physical Education Checkpoin Task ... · Web viewCheckpoint task - Worksheet 1 Biomechanics: Lever systems Instructions and answers for teachers These instructions cover

Checkpoint task - Worksheet 1

Biomechanics: Lever systems

Instructions and answers for teachers

These instructions cover the student activity section which starts on page 8. This Checkpoint task should be used in conjunction with the KS4–5 Physical Education Transition Guide: Biomechanics, which supports OCR A Level Physical Education.

When distributing the activity section to the students either as a printed copy or as a Word file you will need to remove the teacher instructions section.

Version 2 1 Copyright © OCR 2016

ABC – This activity offers an opportunity for English skills development.

123 – This activity offers an opportunity for maths skills development.

Checkpoint task - worksheet 1: Lever Systems – Answers1. Identify the class of lever and give a sporting example of each.

Lever Lever class Example from sport

1st class Pulling the head back – extensions at the neck.

2nd class At the ankle when taking off to high jump.

3rd class At the elbow when doing a bicep curl.


2. Define mechanical advantage?

3. Explain using a practical example what mechanical example is?

Checkpoint task - worksheet 2: Planes and Axes of rotation (Answers)

1. For the pictures below draw on the plane of movement for the skill being performed.

a) Footballer striking a ball – Sagittal

b) Tennis player serving in tennis – transverse


This is when the effort arm is longer than the load arm, allowing the lever system to move a large load over a short distance with little effort.

When jumping the ankle is under mechanical advantage as it can lift the heavy load of the human body but only over a small distance (from the ground) with minimum effort.

c) Gymnast cartwheeling – frontal

d) Trampolinist somersaulting – transverse

e) Cyclist – transverse


2. Identify the axis of rotation being used

a) Gymnast somersaulting – transverse

b) Ice skater spinning –- longitudinal

c) Gymnast cartwheeling – frontal


d) Table tennis player performing topspin (at shoulder) – longitudinal

e) Leg action of a sprinter (at hip) –transverse

3. How can an athlete increase the velocity of their rotation? Use the example of an ice skater spinning to help you.

4. How can an athlete decrease the velocity of their rotation?- use the example of a high diver to help you.


By tucking arms and legs in tight close to the middle of their body, the skater will spin more quickly.

When diving they enter the water in a straight position this slows down the spinning and allows them to enter the water safely as it gives them more time.

Extension taskYou are a biomechanical analyst and for a skill of your choice need to create a storyboard or video explaining the skill. It should include:

The class of lever being used The plane of movements that the action passes through For the major joint being used the axis of rotation.


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Checkpoint Task

Checkpoint Task Worksheet 1: Lever Systems

Student Activity

1. Identify the class of lever and give a sporting example of each.

Lever Lever class Example from sport


2. Define mechanical advantage?

3. Explain using a practical example what mechanical example is?


Checkpoint Task Worksheet 2: Planes and Axes of rotation

5. For the pictures below draw on the plane of movement for the skill be performed.a)

b)

c)


d)

e)


6. Identify the axis of rotation being useda)

b)

c)


d)

e)

7. How can an athlete increase the velocity of their rotation? Use the example of an ice skater spinning to help you.

8. How can an athlete decrease the velocity of their rotation?- use the example of a high diver to help you.


Extension taskYou are a biomechanical analyst and for a skill of your choice need to create a storyboard or video explaining the skill. It should include:

The class of lever being used

The plane of movements that the action passes through

For the major joint being used the axis of rotation.


Documents

OCR A Level Physical Education Checkpoin Task ... · Web viewCheckpoint task - Worksheet 1 Biomechanics: Lever systems Instructions and answers for teachers These instructions cover