Work and Power

Work depends on the direction of the force and _______________________.

What is the SI unit for work and Energy?

The amount of force needed to lift the backpack is equal to the __________.

What is the formula for calculating work?

The work done to lift any object is equal to the weight of the object multiplied by _______________.

What was James Prescott Joules' famous for discovering?

A boy does 18J of work in 2.0s on his backpack as he lifts it from a table. How much power did the boy use on the backpack?

True or False: The weight lifter is working.

__________ is the measure of the transfer of energy that occurs when an object is moved over a distance by an external force.

The formula for power is _________________.

The rate at which work is done AND the rate at which energy is transferred is called ________.

What famous experiment did Joule conduct to prove that heat was a form of energy and could be transferred?

What was James Prescott Joules' family buisness?

A student pushes a desk 2.0m across the floor using a constant force of 25N. How much work is done?

Moving objects have _________ energy.

Gravitational potential energy (stored energy) ______________ as the height above the ground increases

A child pulls a wagon doing 360J of work in 8s. How much power is exerted?

True or False: The weight lifter is working.

The SI unit for power is the _______.