Equilibrium
A body's ability to resist a change in its current state.
What is stability?
A rigid structure where a central axis separates the force and resistance.
What is a third-class lever?
The three categories of fundamental motor skills.
What are locomotor, manipulative, and stability?
An object will stay at rest or travel in the same direction at a constant velocity unless acted on by an unbalanced force.
What is Newton's First Law?
The force that keeps us on the ground at an acceleration of 9.8 m/s squared.
What is gravity?
A theoretical line that passes through the centre of gravity.
What is line of gravity?
The mechanical advantage of all third-class levers.
What is less than one?
Shooting an arrow in archery requires a combination of these.
What are gross and fine motor skills?
Newton's Second Law.
What is a body's acceleration is proportional to the force applied to it and the direction in which the force is applied. Force = mass X acceleration.
A body's resistance to change its rotation rate.
What is moment of inertia?
Centre of gravity.
What is the central point around which a body's weight is balanced?
What is a second-class lever?
Discrete motor skills.
What are motor skills with a specified beginning and end? For example, serving in tennis or swinging a golf club.
A basketball being shot in the air before falling through the net.
What is Newton's First Law?
The sequential and coordinated movement of body parts to create maximum velocity.
What is summation of momentum?
A method of increasing stability.
What is increasing the base of support size, ensuring the line of gravity falls within the base of support, lowering the centre of gravity, increasing mass, increasing friction, extending the base of support in the direction of the oncoming force, or shifting the line of gravity towards the oncoming force?
The result of increasing the resistance arm.
What is increased range of motion?
Externally paced; low predictability; high variability.
What are open motor skills?
When a person performs a high jump, they exert a force that causes them to move away from the earth and the earth to move away from the.
What is Newton's Third Law?
The speed at which an object rotates around an axis.
What is angular velocity?
When an object is moving with a constant velocity with no change in its speed or direction.
What is dynamic equilibrium?
The result of increasing the range of motion.
What is increased angular velocity?
Influences on movement such as rules, equipment, and required speed and accuracy.
What are task-related constraints?
When a swimmer pushes off a wall to return to the other end at a rate proportional to the force they applied to the wall.
What is Newton's Second Law?
The product of moment of inertia and angular velocity: an object's tendency to keep spinning.
What is angular momentum?