Work and Power REVIEW

Front

What is the equation for power?

Back

Power (P) is defined as the work done (W) per unit time (t), expressed as P = W/t.

Front

What are the units for power?

Back

The unit for power is watts (W).

Front

What is the equation for work?

Back

Work (W) is defined as the force (F) applied to an object times the displacement (d) in the direction of the force, expressed as W = F * d.

Front

What are the units for work?

Back

The unit for work is joules (J).

Front

What is the unit for displacement?

Back

The unit for displacement is meters (m).

Front

How do you calculate the work done when a force is applied?

Back

To calculate work done, multiply the force applied by the distance moved in the direction of the force: W = F * d.

Front

What is the relationship between work and energy?

Back

Work is a transfer of energy; when work is done on an object, energy is transferred to that object.

Front

What is gravitational potential energy?

Back

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

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy is PE = m * g * h.

Front

What is the acceleration due to gravity?

Back

The acceleration due to gravity (g) is approximately 9.81 m/s² on the surface of the Earth.