LO5 ac 5.1

what is the fixed point of a lever called?

• pivot

• fulcrum

• load

• effort

Which part of the lever is responsible for applying force?

• fulcrum

• effort

• pivot

• load

What is the term for the weight that a lever moves?

• effort

• load

• fulcrum

• pivot

In a lever system, what is the point called where the lever rotates?

• pivot

• fulcrum

• load

• effort

how many classes of lever are there?

• one

• two

• three

• four

What is the mechanical advantage of a lever?

• The distance from fulcrum to load

• The distance from fulcrum to effort

• The weight of the lever

• The ratio of load to effort

Which class of lever has the fulcrum positioned between the effort and the load?

• Fourth class

• Third class

• Second class

• First class

In a second-class lever, where is the load located?

• Between the effort and the fulcrum

• Between the fulcrum and the effort

• At the fulcrum

• At the end of the lever

to lift a load of 200kg with a four pulley system, how much effort is required?

• 50kg

• 150kg

• 100kg

• 200kg

What is the primary function of a lever?

• To reduce friction

• To lift heavy loads with less effort

• To change direction

• To increase speed