Force Production/Newtons laws
Motion
Balance and Stability
Projectile Motion
100

Newton's second law of motion can best be described through the formula

F = ma

100

What type of motion occurs when a gymnast performs a cartwheel?

Angular motion

100

Define balance

Refers to the ability of a body/object to maintain stability or equilibrium when stationary or moving.

100

What is the optimal angle of release for distance

45 degrees

200

Impulse is...

The change in momentum of an object caused by a force applied over a period of time.

200

Define acceleration

rate of change of velocity over time?

200

Raising your hands above your head does what?

Raises your centre of gravity and decreases stability 

200

Give an sporting example in which an athlete may alter the angle of release to achieve a certain trajectory

Example: Basketball mid range shot vs a full court pass

300

For Mitchell Starc to maximise the force summation of a cricket speed bowl he should?

Generate momentum sequentially from larger body parts to smaller body parts as the previous part reaches peak speed

300

A somersault is an example of rotation about which axis

Medial-lateral axis or frontal axis

300

Where is this persons centre of gravity located

Just underneath there body

300

List 3 key factors influencing the trajectory of a javelin throw

1. Angle of release

2. Speed of release

3. Height of release

400

During take-off, why is it important for the long jumper to hit the take-off board with as much force as possible. Additionally which newton law does this example most accurately represent

Greater force into the ground results in a greater reaction force pushing the athlete upward and forward.

This most accurately represents Newton’s Third Law of Motion:

“For every action, there is an equal and opposite reaction.”


400

What form of motion does a tennis server use

Body displays linear motion

Arms display angular motion

400

What are 3 things a sumo wrestler can do to increase their balance/stability.

1. Widen base of support

2. Lower their centre of gravity

3. Keep Their Line of Gravity Within the Base of Support

400

What effect would high altitudes have on the trajectory of an projectile

Would travel further due to less air resistance