ps 8 motion, forces, newtons laws

Front

What has to happen when a force is exerted on an object for work to be done?

Back

the object moves

Front

In order for work to be done, what must be true?

Back

Force acts in the same direction as the distance traveled.

Front

When you carry an object, is work done on it?

Back

No, force is applied in a different direction than distance traveled.

Front

In which situation is NO work done?

Back

carrying the bookbag

Front

What is being transferred as you do work?

Back

Energy

Front

How do we calculate work?

Back

W = F * d

Front

How do you calculate power?

Back

P = W/t

Front

The SI unit of work is?

Back

Joules

Front

A 5000N block is lifted 10 m. How much work was done?

Back

50000 J

Front

If 150 Joules of work is needed to move a box 10 meters, what force was used?

Back

15 N