Caculating work ( work = Force . Distance )

Which of the following best describes the formula for Work?

• Work is equal to a force applied over a distance.

• Work is equal to force divided over a distance.

• Work is equal to force caused by a distance.

• Work is equal to a distance caused by a force.

A 45N girl sits on a bench 0.6 meters off the ground. How much work is done on the bench?

A boy lifts a 30N toy car 2 meters above the ground. How much work did the boy do on the car?

Tags

NGSS.MS-PS3-2

Which of the following is having work done on it? CHECK ALL THAT APPLY

• A grocery bag as you lift it up

• A crane moving dirt

• A person sitting on a bench

• A crate as you push it along the floor

Tags

NGSS.MS-PS3-5

What is needed to calculate work?

• time and distance

• speed and distance

• force and direction

• acceleration and velocity

Is this an example of work?

• Yes

• No

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the unit of measurement for work?

• meters

• newtons

• m/s

• Joules

Is this an example of work?

• Yes

• No!

Tags

NGSS.MS-PS3-5

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

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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