Energy transfer caused by a Force as it is displaced
Work
The work of a cable to pulling a 2000 N elevator 15 m up.
30000 J
The point on this diagram where the roller coster has the highest potential energy.
A
The equation for Work
W=Fdcosθ
The unit of Energy
Joules
The rate at which Work changes
Power
The average force exerted by a 20 kg dog that exerts 800 W of power while running with an average velocity of 5 m/s
The point on this graph that has the greatest kinetic energy.
B
The equation for Power in terms of time
P=(delta W)/t
The unit of Work
Joules
The energy of Motion
Kinetic Energy
The power a 1500 kg car exerts to accelerate from 1 m/s to 10 m/s in 4 s.
74250 W
The roller coaster can reach point X starting from rest at the starting position indicated.
False
The equation of Power in terms of Force
P=Fv
The unit of Power
Watts
Energy that has the potential to become another form of energy.
Potential Energy
The net work done on a 2 kg box traveling up a 10 deg., frictionless incline staring at 30 m/s until it is at rest.
-900 J
The total amount of work done on the object described in the graph below
36 J
The equations for Kinetic Energy and Gravitational Potential energy
KE=(1/2)mv^2 Ug=mgh
The unit for Work in terms of Newtons
N*m
The energy of either an object in motion or the energy that is stored in objects by their position.
Mechanical Energy
The time required for a 1000 kg car, that exerts 7000 W of power, starting from rest to travel 75 m down a 1 deg. inclined hill.
1.8 s
The power of the object described by the graph below, if it is displaced 15 m in 4 s
25 W
The equation for Spring Potential Energy
Usp=(1/2)kx^2
The unit of Power in terms of kilograms
(kg*m^2)/s^3