Physics
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Length/ distance
meters (m)


Velocity
Meters per second (m/s)

Acceleration
Meters per second squared (m/s^{2})

Momentum (p)
kilogram times meters second squared (kg x m/s^{2)}





Convert 60km per hour to SI units.
 60km = 1km = 1000m = 16.7m
 1 h 1 min 1 min 1 sec

Express in scientfic notation: 17,000,000
1.7 x 10^{7}

Express in scientfic notation: .00000089
8.9 x 10^{7}

Newton's first law
 The Law of Inertia:
 A soccer ball at rest in a field
 Objects at rest stay at rest: Every object in a state of uniform motion tends to remain in that state of
 motion unless an external force is applied to it.


Newton's Second Law
 Force and acceleration
 Soccer ball being kicked

Newton's Thrid Law
 Action and Reaction
 Kayak paddles pushing water
 For every force there is an equal and opposite reaction

Velocity and Acceleration
 V: Speed together with direction of motion
 A: Rate at which velocity is charging. May be magnitude, direction or both.
 Both are vectors

Law of Conservation and Momentum
 In the absence of a net external force the momentum of an object or system of objects is unchanged.
 (Object at rest stays at rest)

Impulsemomentum theorem
Impulse= change in momentum

Elastic collision
Two projectiles bounce off each other; apart/ seperation

Inelastic collisions
Projectiles hit and stick; same velocity after collision

Projectile motion
Can be vertical or horizontal

Circular Motion
 Rotation: Object goes around itself
 Revolution: Goes around something else
