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Newton's Laws
Projectiles
Levers
Energy Systems
Extra
100
Name Newton's Three Laws
1. Inertia. 2. Acceleration. 3. Action and Reaction.
100
What is a projectile?
Any object thrown into space or water by the exertion of a force.
100
A See Saw is an example of which type of lever?
First Class
100

Name the two anaerobic energy systems.

The ATP-PC system and the Lactic acid system.

100

What are the two main types of motion?

Linear Motion and Angular Motion.

200
Newton's Third Law states that...
For every action, there is an equal and opposite reaction
200
What are the three factors affecting the flight of a projectile?
Angle of Release. Height of Release. Speed of Release.
200
What is the fulcrum?
The axis of movement in a lever.
200

What is VO2 max?

The maximum amount of oxygen that can be taken in and used per minute.

200

Define the Coefficient of Restitution

The elasticity of the collision between an object and a given surface. It measures how much energy remains in the object after a collision takes place.

300
What is Inertia?
For an object to remain in its present state (whether moving or stationary) until acted upon by a force
300
What is the optimal angle of release when trying to make an object go as far as possible?
45 degrees.
300

Explain FLE when we are trying to determine which lever is which?

F (1) - Fulcrum in the middle. L (2) - Load in the middle. E (3) - Effort in the middle.

300

During aerobic energy production energy is produced through the processes of glycolysis, Kreb's cycle and the electron transport chain. Which of these also occurs in anaerobic energy production?

Glycolysis

300

Explain the difference between sequential forces and simultaneous forces.

Sequential: When body movements occur in a series to generate force. Simultaneous: The explosive action of all body parts at the same time to generate force.

400
What is Newton's Second Law?
The acceleration of an object is directly proportional to the amount of force applied, in the direction that the force is applied.
400

What is a parabola?

The symmetrical flight path of a projectile.

400
Explain how the difference in arc lengths can affect the outcome of the object.
Shorter arc - less power generated, more control. Longer arc - greater power generated, less control.
400

Name the two components of EPOC.

The fast (alactacid) component and the slow (lactacid) component.

400

What is the difference between internal and external forces? Provide an example for each.

Internal: Forces that come from inside the body eg muscles. External: Forces that come from outside the body eg gravity.

500
Using the appropriate equation, complete this problem: A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s/s?
F = MA. = 10 x 3. = 30N.
500
What variable has the greatest impact in the distance an object will travel?
Angle of Release.
500

Which class of lever is most present in the body and why? (provide an example).

Third Class. The Effort is in the middle (the muscles). The Load is at one end (the ball/object). The Fulcrum is at the other end (joint). Eg Hitting a baseball, effort is arm muscles, load is the bat and ball, fulcrum is the shoulder.

500

Name 4 effects of training on the aerobic system

Cardiac hypertrophy, decreased HR, increased SV, increased capilliarisation of muscle, increased haemoglobin/myoglobin, increased number and size of mitochondia.

500

What are the two ways someones stability can be increased?

Lower the Centre of Gravity. Increase the Base of Support.