Define work, power and energy. State their SI units.
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Work
Energy
Power
Work is said to be done when a force produces a displacement in the body and acts in any direction except perpendicular to the direction of displacement.
The SI unit of work is joule (J).
In simple words, energy is the ability to do work. If a person can do a lot of work, we say that he has energy.
The SI unit of energy is also Joule (J).
power is defined as the rate of consumption of energy or simply the rate of doing work.
SI unit of power is watts (W).
Energy
Power
Work is said to be done when a force produces a displacement in the body and acts in any direction except perpendicular to the direction of displacement.
The SI unit of work is joule (J).
In simple words, energy is the ability to do work. If a person can do a lot of work, we say that he has energy.
The SI unit of energy is also Joule (J).
power is defined as the rate of consumption of energy or simply the rate of doing work.
SI unit of power is watts (W).
Answered by
4
Hey mate,
◆ Answers-
● Work-
- Work can be defined as transfer of energy.
- Work is the application of a force over a distance.
- SI unit of work is Joule.
● Energy-
- Energy can be defined as the capacity for doing work.
- There are 2 types of energy-
1. Potential energy
2. Kinetic energy
- SI unit of energy is Joule.
● Power-
- Power is the work done in a unit of time.
- It is a measure of how quickly work can be done.
- SI unit of power is Watt.
Hope that helps you...
◆ Answers-
● Work-
- Work can be defined as transfer of energy.
- Work is the application of a force over a distance.
- SI unit of work is Joule.
● Energy-
- Energy can be defined as the capacity for doing work.
- There are 2 types of energy-
1. Potential energy
2. Kinetic energy
- SI unit of energy is Joule.
● Power-
- Power is the work done in a unit of time.
- It is a measure of how quickly work can be done.
- SI unit of power is Watt.
Hope that helps you...
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