Page 143 - York Global Science 6 - Physical Science

Physical Science

Think and Discuss!
1 Which machines change the direction of the force?

2 Which machines make a force stronger by making the distance less?
3 Which machines use less force because the distance is greater?

Let’s Talk

Make a lever.

You need:

Put your equipment together like this:

Change the position of the fulcrum to find

out how the length of the lever changes the force needed to lift the load.
Explain how the lever works.

Now complete the worksheet in the Workbook.

Let’s Reflect

1 Explain how simple machines help us.

2 Give examples of different simple machines and how we use them in
daily life.

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