types of levers

........is a rigid bar that rotates around fulcrum ,and its affected by an effort force and resistance force .

• lever

• solution

• mixture

• friction force

Any lever consists of.....

• a resistance force (R)

• an effort force (F)

• a fulcrum (O)

• (a),(b) and (c)

all the following are from the importance of levers except........

• increasing speed

• increasing size

• increasing force

• accuracy in performance

.........is a lever that uses a small force to make a great effort

• crowbar

• hockey bat

• ice holder

• manual broom

tweeters are used to.......

• move heavy load

• increase the speed of the ball

• pick up very small objects

• hold the cold materials

The lever that have the fixed point between the resistance force and effort fore is

• first class lever

• second class lever

• third class lever

• fourth class lever

from the first class lever is .....

• nut cracker

• sweet holder

• scissors

• manual broom

soda opener is a .......

• first class lever

• second class lever

• third class lever

• fourth class lever

…...........has the effort force between the resistance force and fulcrum ..

• third class lever

• second class lever

• first class lever

• fourth class lever

......is a third class lever.

• sweet holder

• scissors

• sweet holder

• nail clapper