Levers

Question 1

What is a lever

Answer 1

Type of mechanism and is possibly the earliest

Question 2

What are the 3 basic parts of lever

Answer 2

Fulcrum
Load
Effort

Question 3

How many classes of lever are there and what does it depend on

Answer 3

3 and they depend on the arrangements of fulcrum load and effort

Question 4

Class 1 lever

Answer 4

Load at one end and effort at other end
And fulcrum in the middle below

Question 5

What is are some examples of class 1 lever

Answer 5

Scissors/crowbar
Work an pushing a trolley

Question 6

What is the fulcrum also known as

Answer 6

Pivot point

Question 7

Class 2 lever

Answer 7

Load is in the middle on top
Fulcrum one end and effort other end

Question 8

What are some examples of class 2 levers

Answer 8

Wheelbarrow

Question 9

Class 3 levers

Answer 9

Effort in the middle on bottom
Fulcrum one end bottom and load top other end

Question 10

What are class 3 lever example

Answer 10

Tweezers/fisherman catching fish

Question 11

F=1
L=2
E=3

Answer 11

Fulcrum in middle is class 1
Load in middle is class 2
Effort in middle is class 3