Biodiversity and natural selection
Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms.
Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms.
The amount of effort saved when using machines is called mechanical advantage (MA). Simple machines use mechanical advantage as a key property to their functionality, helping humans perform tasks that would require more force than a person could produce. We will use the lever as an example of a simple machine to illustrate the concept of mechanical advantage.
In this lesson you will learn about:
This YouTube video delves into the impact that tourism can have on a country's economy.
This YouTube video delves into the impact that tourism can have on the environment.
This video explains how to calculate the gradient (slope) of a straight line.
This YouTube video explains how to calculate an irregular area on a map.
This YouTube video explains how to calculate a regular area on a map.
This online tutorial guides you through what information a map shows, map legends and the different types of maps which are available.
In this unit we will learn how these factors can affect the output of a simple machine. We will also learn about the difference between ideal mechanical advantage (IMA) and actual mechanical advantage (AMA), and how to apply your knowledge to calculate the efficiency of various simple machines.