Energy, Work, Power

Front

What is the formula for calculating power?

Back

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

Front

What principle explains why the total amount of mechanical energy stays constant in a system?

Back

Energy is not created or destroyed (Law of Conservation of Energy)

Front

What type of energy is stored in a compressed spring?

Back

Elastic energy

Front

What is the potential energy of an object at ground level?

Back

0 J (Potential energy is zero when the height is zero)

Front

Energy cannot be ________ or ___________.

Back

created/destroyed (Law of Conservation of Energy)

Front

What is the unit of power?

Back

Watt (1 Watt = 1 Joule/second)

Front

What is kinetic energy?

Back

The energy of an object due to its motion, calculated as KE = 1/2 mv² (where m is mass and v is velocity)

Front

What is gravitational potential energy?

Back

The energy an object possesses due to its height above the ground, calculated as PE = mgh (where m is mass, g is acceleration due to gravity, and h is height)

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy (Work = Energy transferred)

Front

What is the formula for calculating work?

Back

W = Fd (Work = Force x Distance)