PRESENTATION OUTLINE
Acceleration
A change in speed and or direction
This relates to roller coasters because of the changes in the acceleration and direction
Centripetal force
A force that causes an object to move in a circle
This relates to roller coasters because centripetal force makes the roller coaster make the loop
Energy conversion
The process of changing one form of energy into another
Force
A lift, push, or pull
The roller coaster has force when it's lifting the car up the lift hill
Free fall
When gravity is the only force acting on an object
The roller coaster is moving down toward the earth
Friction
The force that one surface exerts on an other by rubbing against each other
The roller coaster has a set of wheels called friction wheels that control lateral motion (movement on either side of the track)
Gravity
The force that pulls objects toward earth
When roller coaster goes down the hills it is using gravity that pulls it down
Kinetic energy
The energy of motion
The roller coaster is moving
Potential energy
Energy that is stored and held in readiness
The roller coaster is being pulled by a hitch to the top of the hill
Momentum
The product of an objects mass and velocity
When the coaster
Is going faster and bs more people in it
Newton's first law (inertia)
An object in motion stays in motion an object at rest stays at rest
Your body moves back
When the roller coaster
Starts up
Newton's second law
A greater force causes a greater acceleration. The more mass the more force needed
A empty car will go faster than a full car
Newton's third law
For every action there is an equal and opposite reaction
The roller coaster is pushing against the tracks and the tracks are pushing against the roller coaster
Velocity
speed with direction
Going 95mph down hill
