Work

When is an object's displacement zero?

• Displacement cannot be zero

• When it hasn't moved

• When it returns back to its starting place.

• Two of these answers are correct.

How is distance different from displacement?

• Distance needs magnitude (size) and direction

• Displacement only needs magnitude (size)

• Displacement does not need direction

• Displacement requires magnitude (size) and direction

What is displacement?

• Total area traveled

• How far from the start an object is

What is work?

*in terms of science*

• doing a job

• how much time a force is applied to an object

• how much force is applied to an object

• amount of force putting an object into motion for given distance

What is the equation to solve for work?

• W= Fd

• W=F/d

• W=d/F

• W=st

If I push a box 10 meters across the floor with a force of 0.5 N, how much work did I do?

• 50 Joules

• 5 Joules

• 20 Joules

• 0.05 Joules

For work to be done, the direction of the force and distance have to be in the same direction.

• True

• False

If you increase the amount of force applied to an object, work will also be increased.

• True

• False

If you increase how long you apply the force to an object (or the distance) work will also increase.

• True

• False