Exam Science Types Of Levers Junior6 Part1

the most common simple machines are………..

the lever rotates around a fixed point called

levers were first described in 260 B.C by the greek scientist

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

the…….force is exerted by person to equilibrate the resistance

any lever consists of…………

All the following are from the importance of levers except

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

………increases the speed of objects that we affect them

tweezers are used to….*

which of the following levers is used to avoid dangers?

which of the levers derived is used to enlarge the distance ?

which of the following levers moves force from one place to another ?

the levers that have the fixed point (fulcrum) between the resistance force and effort force are….

from the first class levers is…..

……have the resistance force between the effort force and fulcrum

soda water opener is a….

the 1 class lever differs from the 2nd class lever in…

…….are from the second class levers

which of the following is a 2nd class lever?

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

the effort force is between the resistance and fulcrum in …..

……………..is a lever from the 3rd order

All the following are from the 3rd class levers except

wheelbarrow is considered from…………class levers

All the following are from the first class levers except

crowbar is considered from ……………..class levers

All the following are from the importance of levers except

increases the speed of objects that affects on them

Which of the following levers is used to avoid dangers?

From the first class levers is

have the resistance force between the effort force and fulcrum

The 1st class lever differs from the 2nd class lever in

Which of the following is a 2nd class lever?

have the effort force between the resistance force and fulcrum

The effort force is between the resistance and fulcrum in

(choose)………………is a lever from the 3rd order

All the following are from the 3rd class levers except

Wheel barrow is considered as………(choose)

Force arm is sometimes equal to resistance arm in…………….class lever

Which of the following levers saves (conserve) effort?

The levers are considered as one of the first simple machines which man invented in the past