energy
potential energy
Thermal Energy
the energy contained within a system that is responsible for its temperature.
Describe the energy transformations between potential and kinetic energy on
potential energy transforms into kinetic energy until they reach the bottom of the hill. As the cars ascend the next hill, some kinetic energy is transformed back into potential energy.
Gravitational Potential
the work done per unit mass that would have to be done by some externally applied force to bring a massive object to that point from some defined position of zero potential, usually infinity .
friction
the resistance that one surface or object encounters when moving over another.
When does a roller coaster car experience acceleration?
At the top of a roller coaster, the car goes from moving upward to flat to moving downward.
Elastic Potential
is energy stored as a result of applying a force to deform an elastic object.
absolute zero
temperature at which a thermodynamic system has the lowest energy.
What keeps a coaster car on the track as it goes through a loop?
centripetal force
kinetic energy
energy which a body possesses by virtue of being in motion.
water boiling
211.9 °F
If the roller coaster car in the above problem were moving with twice the speed, then what would be its new kinetic energy? (Hint: if the speed doubles, the kinetic energy quadruples).
4.19 x 105 Joules.
Conservation of Energy
states that the total energy of an isolated system remains constant; it is said to be conserved ...
exothermic and endothermic
An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.”
What is the relationship between height and speed on a roller coaster?
Each gain in height corresponds to the loss of speed