what is another name for a lever?
a lever on a building site
a lever in the human body
a lever word beginning with L
a lever word beginning with E
a lever word beginning with F
there are ........ classes of lever
which class has a centre fulcrum
give an example of a 1st class lever
which class has a centre load
give an example of 2nd class lever
which class has a centre effort
give an example of 3rd class lever
what is a mnemonic?
a 1st class lever goes
a 2nd class lever goes
a 3rd class lever goes
a mechansism
a crane
an elbow
load
effort
fulcrum
3
!st class
scissors
2nd class
wheelbarrow
3rd class
hammer
a memory aid
effort fulcrum load
effort load fulcrum
fulcrum effort load