Physics · Work, Power & Energy
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Work done on a body equals change in its _____ energy.
- A
Total
- B
Potential
- C
Kinetic
- D
All of these
Since the type of work that is being done isn't specified, a body can have either kinetic energy due to motion or potential energy due to its motion; either or both of these energies can be affected depending on how the work is done . The work could affect the total energy of the body where the work done could result in a change in the kinetic and potential energy alternatively a change in heat energy could also be observed. Hence all of these.
a) Total energy: Total energy refers to the sum of an object's potential energy and kinetic energy. When work is done on a body, it can lead to changes in both potential and kinetic energy, contributing to changes in the total energy of the body.
b) Potential energy: Potential energy is the energy stored in an object due to its position or configuration. For example, a raised object has gravitational potential energy, and a stretched spring has elastic potential energy. When work is done on a body, it can change its potential energy, either increasing or decreasing it.
c) Kinetic energy: Kinetic energy is the energy possessed by an object due to its motion. When work is done on a body, it can change the body's speed or direction of motion, leading to changes in its kinetic energy.
d) All of these: This option suggests that work done on a body can result in changes in both its potential energy and kinetic energy, which in turn contribute to changes in its total energy. So, when work is done on a body, it can indeed affect all three types of energy: potential, kinetic, and total.
Tagged under Physics · Work, Power & Energy · 2008