Gravitational Potential Energy
About the Lecture
The lecture Gravitational Potential Energy by Jared Rovny, PhD is from the course Energy of Point Object Systems.
Included Quiz Questions
How does the gravitational potential energy of an object change if its height is doubled?
- It doubles
- It quadruples
- It is unchanged
- It is halved
- It depends on the mass of the object
The initial total energy of a 2 kg object is E₁ = U + K = 25 J. If it falls 5 meters under the influence of gravity only, what is its new total energy E₂?
- 25 J
- 125 J
- This depends on the object’s initial velocity
- This depends on the object’s initial height and velocity
- -25 J
An object of mass m = 1 kg has a total energy of E = U + K = 50 J. If the object is at a height of h = 2 m, what is its speed v? (g = 9.8 m/s²)
- v = 7.8 m/s
- v = 10 m/s
- v = 0
- v = 5.5 m/s
- v = 11.8 m/s
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Author of lecture Gravitational Potential Energy
Jared Rovny, PhD
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