Energy, Work, and Power

Front

What is the formula for calculating power?

Back

Power (P) = Work (W) / Time (t)

Front

Define mechanical energy.

Back

Mechanical energy is the sum of kinetic and potential energy in a system.

Front

What is the equation for calculating work?

Back

W = Fd, where W is work, F is force, and d is distance.

Front

How is kinetic energy calculated?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration.

Front

What is the unit of power?

Back

The unit of power is the Watt (W), which is equivalent to one Joule per second.

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy of that object.

Front

How do you calculate the total mechanical energy of a system?

Back

Total Mechanical Energy = Kinetic Energy + Potential Energy.

Front

What is the significance of the conservation of mechanical energy?

Back

In a closed system, the total mechanical energy remains constant if only conservative forces are acting.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position.