Energy, Work, Power

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It is often associated with the height of an object above the ground.

Front

What is the formula for gravitational potential energy?

Back

PE = m * g * h, where PE is potential energy, m is mass, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is height.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated using the formula KE = 1/2 * m * v², where m is mass and v is velocity.

Front

What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another. The work done on an object is equal to the change in its energy.

Front

What is the formula for work?

Back

W = F * d, where W is work, F is force, and d is the distance over which the force is applied.

Front

What is power in terms of energy?

Back

Power is the rate at which work is done or energy is transferred, calculated using the formula P = W/t, where P is power, W is work, and t is time.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds between atoms in a molecule. It is released or absorbed during a chemical reaction.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.

Front

What is the unit of energy?

Back

The unit of energy is the Joule (J).

Front

What is the unit of power?

Back

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