Work, Power, and Energy
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These flashcards cover the key concepts from the lecture on Work, Power, and Energy, focusing on definitions, units of measurement, and relationships between variables.
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20 Terms
What unit is used to measure Work?
Joules (J)
What unit is used to measure Force?
Newton (N)
What unit is used to measure Distance?
Meters (m)
What is the graphical relationship pattern for Work?
Inverse
As the distance _______________, the force _______________.
increases, decreases
If there is no __________, then there is no work!
distance
What are the two categories of work?
1) Work done AGAINST A FORCE, 2) Work done to CHANGE A SPEED.
Which person does more Work going up the same set of stairs - the runner or walker?
Neither, work is the same!
Which has more energy?
Chocolate chip cookie
What is the measure of the rate at which Work is done?
Power
What is the unit for Power?
Watt (j/s)
Which is NOT another common unit for Watt?
kgm/s
What is the formula for Power?
Power = W/t
Gravitational potential energy (GPE) is _____.
"Stored energy" due to an object's height
What is the formula for GPE?
GPE = mgh
What is the variable for mass?
m
What is the variable for gravity?
g
What is the variable for height?
h
Gravity on earth is _____.
10 m/s/s
Kinetic energy (KE) is ______.
Energy due to an object's speed.
