Calculating work practice

One joule equals the amount of work that is done when 1N of force moves an object over a distance of

• 1cm.

• 1m.

• 1 km.

• none of the above

You can calculate distance from work and force with the equation

• Distance= Work + Force

• Distance=Work x Force

• Distance=Force/Work

• Distance=Work/Force

If you apply 20 Newtons of force to do 60 joules of work on an object, the object moves a distance of _______________ metres.

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

The SI unit for work is .

What is the equation for calculating work when force and distance are known?

• work = force + distance

• work = force x distance

• work = force/distance

• work = distance/force

When calculating work, force is measured in

• joules.

• Newtons.

• foot-pounds.

• none of the above.

Work equals force multiplied by

If you do 40 joules of work on an object to move it 2 metres, you apply Newtons of force to the object.

Clarissa helps her mum put the lawn mower in the back of her mum's truck. They lift the mower up from the ground to the tray of the truck, which is 1.1 metres above the ground. If she does 528 joules of work climbing into the tray, how much does she weigh?

• 500 N

• 480 N

• 395 N

• 400 N

Tags

NGSS.HS-PS2-1

You can calculate force from work and distance with the equation

• Force = Work /Distance

• Force = Work x Distance

• Force = Distance / Work

• Force = Weight + Distance