Levers and mechanical advantage

What part of the human body acts as the fulcrum in all lever systems?

(a)  

How many classifications of levers are there?

• 3

• 2

• 5

• 4

In which position will the fulcrum be in relation to the effort and load in a first class lever system?

• On the left

• In the middle

• On the right

What type of lever, useful for overcoming large loads, can be found at the ankle when a basketball player jumps for a rebound?

• First class lever

• Second class lever

• Third class lever

What is the acronym which helps to remember which part of the lever is in the middle?

(a)  

What is mechanical advantage?

• Effort divided by Load

• Load divided by Effort

• Fulcrum X Effort

• Load X Fulcrum

What term defines the use of a lever to overcome a large load with relatively little effort?

• Mechanical disadvantage

• Mechanical advantage

• Resistance arm

Which class lever is this?

• First

• Second

• Third

Name the sporting example for a first class lever.

• Heading a ball in football

• Hitting a smash in badminton

• Bicep curl when lifting weights

• Cartwheel

Which lever will always have a mechanical disadvantage?

• First

• Second

• Third