What is the sensation felt when no external force is acting upon your body?
weightlessness
What is Newton's 3rd Law?
For every action, there is an equal and opposite reaction
speed and direction that an object moves
velocity
motion along a curve or through a circle
centripetal force
a force that resists the motion of an object
friction
amount of motion that an object possesses
momentum
measurement of how fast and object is moving
speed
material that was used to build the first roller coasters
wood
What type of car did the first roller coaster have?
sleds
What is energy of motion?
kinetic energy
Why is critical velocity important? What is it?
the speed needed at the top of a loop for a car to make it through the loop without falling off the track
What is the amount of energy stored by an object relative to its position?
potential energy
tendency of an object remain at rest
inertia
What is a force?
push or pull acting upon an object
What is the force from the Earth that attracts objects?
gravity
measurement of the amount of pounds
weight
measurement of the amount of material in a substance
mass
Where was the first true roller coaster introduced in the U.S.?
Coney Island
Which of Newton's laws is also known as the Law of Inertia?
Newton's 1st Law
What is the unit of acceleration?
g
first roller coaster that introduced loops and a corkscrew track
Matterhorn
change in speed or direction
acceleration