Work Practice

Which are correct units for work?

• N x s

• N x m

• J/s

• W

The force used in the work equation has to always be acting in the same direction as the movement of the object.

• True

• False

Pushing a box 10 meters across the floor.

• Work

• Not work

Pushing on a car but it does not move.

• Work

• Not work

In order for Work to happen, what 2 things must occur?

• Mass and Displacement
• Force and Mass
• Force and Work
• Force and displacement

Calculate the work done by a 47 N force pushing a pencil 0.26 m.

• 12.2
• 13.5
• 12.8
• 11.2

Is this an example of work?

• Yes

• No

What is the unit of measurement for work?

• meters

• newtons

• m/s

• Joules

You have to push with 15 N of force to move it 10 meters. How much work do you do?

• 15 Joules

• 150 Joules

• 1.5 Joules

• .67 Joules

500 J of work is done by a person who uses a force of 50N to move a box, how far does it go?

• 10 m

• 0.1 m

• 25,000 m

• 10 J