18 Questions
Which type of energy does an object possess due to its position in a gravitational field?
Potential energy
What happens to gravitational potential energy as a basketball descends?
It decreases
In terms of work done, what happens when an object is moved up against gravity?
Negative work is done by the gravitational force
According to the work-energy theorem, what does the work done by the net force on a particle equal?
Change in total mechanical energy
When an object moves down in a gravitational field, what form of energy does it gain?
Kinetic energy
How is the change in gravitational potential energy related to the work done by gravity?
"Change in potential energy is positive when more work is done by gravity"
What is the formula for calculating gravitational potential energy?
$PE = mgh$
Which quantity is conserved when only the force of gravity does work on a system?
Total mechanical energy
What is the expression for calculating net work using the work-energy theorem?
$W = \Delta KE$
If an object has a mass of 5 kg and is lifted to a height of 10 m, what is its gravitational potential energy?
500 J
Which law states that the total mechanical energy of a system remains constant when only conservative forces are at play?
Law of Conservation of Mechanical Energy
How does the potential energy change as an object is lifted higher above the ground?
Potential energy increases
What is the unit of work in the SI system?
1 N · m
When does work done by a force become negative?
When the force is perpendicular to the displacement
What is the work done by a constant force acting at an angle of 60 degrees to the displacement?
Cannot be determined
If an object is lifted with a force of 5 N at a constant speed for a distance of 3 m, how much work is done?
15 J
At what angle between force and displacement would the work done be zero?
90 degrees
When is work done by a system considered positive?
When there is a component in the direction of displacement
Test your knowledge about gravitational potential energy, which is the energy an object possesses due to its position in a gravitational field. Explore concepts like energy conversion from potential to kinetic as objects descend. This quiz also covers how gravitational potential energy is affected by gravity.
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