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WorksheetsLevers #3
Total questions: 18
Worksheet time: 9mins
Define Levers
Simple machines that help us apply force
Point on which things rotate or are balanced i.e. joints in the human body
The thing that needs to be moved
The thing that is applied to move the load e.g. muscles
Define Axis/fulcrum/pivot
Simple machines that help us apply force
Point on which things rotate or are balanced i.e. joints in the human body
The thing that needs to be moved
The thing that is applied to move the load e.g. muscles
Define Resistance/load/weight
Simple machines that help us apply force
Point on which things rotate or are balanced i.e. joints in the human body
The thing that needs to be moved
The thing that is applied to move the load e.g. muscles
Define Effort/Force
Simple machines that help us apply force
Point on which things rotate or are balanced i.e. joints in the human body
The thing that needs to be moved
The thing that is applied to move the load e.g. muscles
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
What type of lever
First Class Lever
Second Class Lever
Third Class Lever
Aim of a Second Class Lever
To produce speed and range of motion movements i.e. moving a small resistance/load quickly
To produce force movements so that a large resistance can be moved by a relatively small force
Aim of a Third Class Lever
To produce speed and range of motion movements i.e. moving a small resistance/load quickly
To produce force movements so that a large resistance can be moved by a relatively small force
Define Long Levers
Can be moved with less force and at greater speeds - this is beneficial for moving body parts quickly and applying strength for pushing, pulling and lifting objects.
Result in greater speed at the end of the lever arms - this is beneficial for throwing and striking the objects.
Define Short Levers
Can be moved with less force and at greater speeds - this is beneficial for moving body parts quickly and applying strength for pushing, pulling and lifting objects.
Result in greater speed at the end of the lever arms - this is beneficial for throwing and striking the objects.
