Show:
Equations
Energy
Variables
Calculations
Roller Coasters
100
This equation tells us how much something weighs in Newtons.
What is N=m*g?
100
The energy that is stored in an object.
What is potential energy?
100
"g"
What is gravity? (9.8m/s^2)
100
PE of a 5kg object on a 100m hill.
What is 4900J?
100
The most important source of initial energy.
What is the first hill?
200
This tells us the total amount of potential energy in a situation.
What is PE=m*g*h?
200
The energy that is in motion.
What is kinetic energy?
200
"m"
What is mass?
200
Newtons of an object 10m up with 70J.
What is 7N?
200
The effect that height of loops and hills has on a coaster.
What is slows them down or add more energy? (Depends on the height.)
300
This tells us the total amount of kinetic energy in a situation?
What is KE=1/2*m*v^2?
300
The effort that it takes to move something over a distance.
What is work?
300
"h"
What is height (m)?
300
Speed of a 500kg coaster with 3500J of energy.
What is 3.7m/s?
300
The effect of mass on the coaster.
What is increase the speed going down, but increase the rate of deceleration.
400
This tells us the speed (or velocity) that an object is moving in a situation.
What is v=sq.rt.(KE / 1/2*m)?
400
The force that pulls things towards an object.
What is gravity?
400
"Ek"
What is KE or Kinetic Energy?
400
Mass of an object 60m up a hill with 40000J.
What is 68kg?
400
The reason people do not fall out of a coaster.
What is centripetal force?
500
This equation tells us the mass of an object if we know the stored energy amount.
What is m=PE/g*h?
500
The effect that height has on energy.
What is increases its potential energy?
500
"W"
What is work (N)?
500
FINAL JEOPARDY: Two ball-like objects are being put on top of a 132m tall building. The objects have PE values of 6468J and 3881J. Find the mass of each object. Then, determine which object will hit the ground first.
What is 5kg and 3kg, respectively? They should hit the ground at the same time, since mass does not affect speed of falling.
500
The longest dropping roller coaster in the world.
What is Kingda Ka, in Six Flags, New Jersey?