3.1.2.1 Lever systems, examples of their use in activity and

How many levers are there?

• 1

• 2

• 3

• 4

A lever consits of 4 elements. The first one is the lever, which 3 complete the lever system?

• Fulcrum

• Load

• Effort

• Triangle

• Sagittal

What type of lever is this ?

• 1st class

• 2nd class

• 3rd class

• 4th class

What class lever is in operation here?

• 1st class

• 2nd class

• 3rd class

• 4th class

Which equation describes mechanical advantage?

• Load arm x resistance arm

• Effort arm x resistance arm

• Load arm ÷ resistance arm

• Effort arm ÷ resistance arm

Which lever has the highest mechanical advantage?

• 1st class

• 2nd class

• 3rd class

• 4th class

The ____ is located in the middle of a 1st class lever

Which rhyme is used to remember the order of lever systems?

• FLE - 123

• ELF - 321

• 123 - LEF

• 123 - EFL

A football throw in is an example of which lever?

• 1st class

• 2nd class

• 3rd class

• 4th class