Activity 11

Match the questions with their answers

QUESTIONS

1- What is a simple machine?

2- Why is learning the basics of simple machines so important?

3- Which are the two basic simple machines

4- How does a simple machine work

5- What devices are varian of the inclined plane

6- Why are simple machines so useful?

7- What devices are variants of the lever

8- What's the relationship between simple machines and more complicated machines?

9- How many moving parts has a simple machine got?

ANSWERS

A- The wheel, axle and pulley are variants of the lever

B- A simple machine has got few or no moving parts

C- Simple machines can be thought of as building blocks for more complicated machines

D- Simple machines are useful because they make work easier

E- The two basic simple machines are the inclined plane and the lever

F- A simple machine is a device that changes the direction and the magnitude of a force

G- The screw and the wedge are variants of the inclined plane

H- Learning the basics of simple machines is fundamental to understanding more intrincate mechanisms

I- A simple machine works by using a single applied force to do work against a load