10 Questions
What is the relationship between work done and change in potential energy?
Work done = -∆V
State the condition for total mechanical energy to be conserved in a system.
Kf + Vf = Ki + Vi
What does it mean when the total mechanical energy of a system is conserved?
It neither increases nor decreases in any process.
Define the concept of potential energy of a system.
Potential energy is the stored energy by virtue of an object's position or configuration.
What does the negative sign in the spring constant equation represent?
The direction of the force is opposite to the displacement of the spring.
When is the principle of conservation of mechanical energy applicable?
It is applicable only for conservative forces.
What does Hooke's law state regarding the restoring force of a spring?
The restoring force is directly proportional to the displacement.
What is the total energy in a system that involves conservative forces?
ET = K + V = constant
What is the unit of the spring constant?
Newton per meter (N/m)
Explain the concept of Elastic Potential Energy.
It is the potential energy stored in a spring when it is stretched or compressed.
Test your knowledge on gravitational potential energy and its relation to work done, potential to do work, and energy storage systems. Questions cover the concept of conservative forces and the calculation of potential energy in various scenarios.
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