Unit 1.1 - Machines around us

What do simple machines do?

What are some examples of simple machines?

What is effort?

What is the load?

What is a simple machine?

What are the three ways a simple machine makes a task easier?

What are force multipliers?

What is an example of a force multiplier?

What are speed multipliers?

What is an example of a speed multiplier?

What is an example of changing the direction of a force?

What are levers?

What is a fulcrum?

What do most levers do?

What is a mechanical advantage?

The way a lever operates depends on three things. What are they?

What is a first-class lever?

What is a second-class lever?

What is a third-class lever?

What are some other examples of third-class levers?

Enjoy...