Stability and balance
Standing with feet wide apart makes this bigger?
Your base of support!
The fastest moves happen when joints move in what order?
biggest to smallest
In you want to move into the air
you have to push down on the ground to create that force
What is torque?
A turning force
A basketball player widens their stance to stay balanced.
Stability
In gymnastics, spreading your arms during a landing increases what?
Your stability!
kicking a ball harder involves more of this.
Force!
A tennis swing with a long follow-through increases your...
speed or velocity
Spinning happens around this point.
The axis
A sprinter uses all joints to start the race strong
Maximum force
When you lower your body before you jump, you are more stable because....
your center of mass is changing
Jumping higher needs you to use more of these body parts
joints or muscles
more time= more impulse= more...
speed or momentum
By tucking your limbs in, it makes your spin do what?
go faster
Spinning a frisbee with your fingers creates this.
torque or angular motion
mass, center of mass, and base of support
a pro baseball player know how to do this with all their joints.
use them in the right order or sequence
When you jump, you push down but move up. This is...
movement in the opposite direction of force
product of the angular velocity X the moment of inertia=
angular momentum
A figure skater pulls in her arms to spin faster.
Increasing angular momentum
Standing on one foot makes your base of support do this.
get smaller.
this law explains why pushing on the ground helps your move.
Newton's Third Law
Force over time changes how fast something moves. What is this called?
impulse
What 3 things affect how much torque you create?
the amount of force, lever arm length and angle of which the force is applied
A gymnast spreads out their arms and legs to slow their spin in the air.
Increasing moment of inertia