Yr8-Work,energy And Machines

Question 1

How do you work out work?

Answer 1

Work done=force x distance

J) (N) (m

Question 2

What does work mean.

Answer 2

Transfers that do not require heating and cooling. It works against gravity or friction.

Question 3

How could you make your life easier?

Answer 3

You could make a simple machine that can do the work.

Question 4

What could a machine do?

Answer 4

It reduces the force for you.

Question 5

What can a lever do?

Answer 5

A lever can do a job that only requires you to move something by only pulling it down.

Question 6

Did you know…

Answer 6

That the force made by your hand is less than the lever

Question 7

How can gears help you? (Bike)

Answer 7

Different machines help you travel faster up the hill with little force needed by you.

Question 8

When riding a bike downhill, how is it easier than walking?

Answer 8

The machine goes down by gravity and the force that you did, but if walking, you need more power to go down and you go slower.