WorksheetsBiomechanics
Total questions: 27
Worksheet time: 17mins
What information does a velocity give that a speed does not give?
rate of change of distance
direction
units of measurement such as km/h or mi/h
how fast something travels
A object goes from point X to Y and then come back from Y to X. What is the displacement and average velocity?
displacement is zero, Average velocity is also zero
displacement is increase, Average velocity is also increase
displacement is increase, Average velocity is also decrease
displacement is increase, Average velocity is also zero
define instantaneous acceleration
acceleration at a particular instant of time
acceleration at a particular distance
acceleration at a particular velocity
acceleration at a particular displacement
Which of these best defines the term 'biomechanics'?
The machinery or working parts of something.
The study of the mechanical laws relating to the movement or structure of living organisms.
The branch of applied mathematics dealing with motion and forces producing motion.
The branch of science concerned with the nature and properties of matter and energy.
What are the TWO MAIN benefits that biomechanics has on an athlete?
Increased performance
Breaking world records
Getting new equipment
Reduced risk of injury
Newton's first law of motion states that 'an object will remain at rest or in it's current state of motion unless ...' what?
Acted upon by an unbalanced force.
It's mass is too great.
It is pushed, kicked or hit.
There is no gravity present.
Newton's third law of motion states that 'for every action there is ...' what?
An unbalanced force acting upon it.
A chain of reactions.
An equal and opposite reaction.
A range of possible outcomes that may occur.
A swimmer pushing their feet off the wall is an example of which of Newton's 3 laws of motion?
Law of Acceleration
Law of Action and Reaction
Law of Inertia
A man wants to shoot an arrow so that it has the greatest range (horizontal distance). At what angle should he shoot the arrow?
10 degrees
45 degrees
60 degrees
90 degrees
At which of the following places does a projectile have the greatest velocity?
At the peak of its trajectory
Half way up to the peak
At the instant it is launched
It has the same velocity at all places
The three main factors effecting the trajectory of a projectile are:
Velocity of Release
Height of Release
Momentum of Release
Angle of Release
High Trajectory provides:
Longer Flight Time
Less Horizontal Velocity
More Horizontal Velocity
Shorter Flight Time
Parabola Trajectory
Release Angle of < 45 degrees
Release Angle of 45 degrees
Shortest Flight Time
Maximises Horizontal Distance
Baseball Pitch is an example of:
Parabola
High
Flat
Velocity of Release:
Is not important to a projectile
Determines the angle of the trajectory
Determines the height and length of trajectory
Is a result of both Vertical and Horizontal velocity
The Height of Release of a projectile is:
Is always the same
The difference between the height of the release point and the landing point.
Important in determining the speed at which a projectile will travel
Has no effect to a projectile
Linear motion and angular motion combine to create:
Momentum of a projectile
Velocity of a projectile
Direction of a Projectile
General Motion
Sequential Movement
Body parts involved move in sequence from largest, fastest and weakest segments
Body parts involved move in sequence from smallest, slowest and strongest segments
Body parts involved move in sequence beginning with the largest slowest and strongest segments.
Body parts involved move at the same time and in the same direction
Summation of momentum is created:
when performing a Simultaneous movement pattern
When greatest amounts of momentum are transferred from largest body part to smallest to create maximum force
When Velocity of release is at its maximum
When performing a Sequential movement pattern
You can improve stability by:
Increasing Base of Support
Increasing the mass of a body
Lowering the Centre of Gravity
Leaning forward
Stability of an object depends on:
Where the mass of the body is in relation to the velocity that it has created
Where the mass of the body is in relation to its dynamic balance
Where the line of gravity is in relation to the base of support
where the line of gravity is in relation to the static balance
