Work energy power

Front

What is the total amount of energy a moving object has?

Back

The total energy is expressed as KE + PE (Kinetic Energy + Potential Energy).

Front

Is work done when carrying an object?

Back

No, work is not done because the force applied (upward) is in a different direction than the distance traveled (horizontal).

Front

What happens to Potential Energy (PE) when a rollercoaster cart moves towards the ground?

Back

The Potential Energy transforms into Kinetic Energy (KE).

Front

What must be true for work to be done?

Back

Force must act in the same direction as the distance traveled.

Front

What is the formula for Kinetic Energy (KE)?

Back

KE = 1/2 m v², where m is mass and v is velocity.

Front

What is Potential Energy (PE)?

Back

Potential Energy is the energy stored in an object due to its position or height, calculated as PE = mgh.

Front

What is the relationship between work, force, and distance?

Back

Work (W) is defined as the product of force (F) and distance (d) in the direction of the force: W = F * d.

Front

What is Power in terms of work?

Back

Power (P) is the rate at which work is done, calculated as P = W/t, where t is time.

Front

How does energy conservation apply to a pendulum?

Back

In a pendulum, energy is conserved as it transforms between potential energy at the highest point and kinetic energy at the lowest point.

Front

What is the unit of work?

Back

The unit of work is the Joule (J), which is equivalent to one Newton meter (N·m).