Unit 4: Linear Momentum

In physics, work is done when a force causes _, and the force must have a component in the _________ of the displacement. (W = Fd cos(theta))

The standard unit for work and energy, represented by 'J'. One Joule is equivalent to one _-__________. (N·m)

Occurs when the force and displacement are in the _ direction, increasing an object's energy.

Occurs when the force and displacement are in _ directions, meaning energy is being __________ from the object.

Occurs when there is no _ or when the force is __________ to the displacement.