law of lever part (2)

the effort force and resistance force can be measured in

• centimeter

• newton

the type of lever which always doesn`t conserve effort is the ......

• first-class lever

• second class lever

• third-class lever

the type of lever which always has a mechanical benefit is the ..........

• first-class lever

• second class lever

• third-class lever

which of the following levers saves effort ....

• scissors

• fishing tool

• nutcracker

• sweet holder

which of the following levers doesn`t save effort .....

• coal holder

• nutcracker

• wheelbarrow

• bottle opener

which of the following levers has the arm of force longer than the arm of resistance .........

• manual broom

• ice holder

• soda water opener

• tweezers

all the following levers don`t save effort except ......

• nutcracker

• ice holder

• fishing tool

• hockey bat

third-class lever always saves effort.

• true

• false

they are simple machines that always save effort .

• first-class lever

• second class lever

• third-class lever

a type of lever where the effort force is always shorter than the resistance force.

• first-class lever

• second class lever

• third-class lever