Advertisements
Advertisements
प्रश्न
Draw a labelled diagram of a class II lever. Give one example of such a lever.
Advertisements
उत्तर
The nut cracker acts as a class II lever.
APPEARS IN
संबंधित प्रश्न
Name the class to which the following lever belong:
a lemon squeezer
Draw diagram to illustrate the position of fulcrum, load, and effort, of the following:
a pair of forceps
In a lever, the fulcrum is at one end at a distance of 30 cm from the load and effort is at the other end at a distance of 90 cm from the load. Find :
(a) the length of load arm,
(b) the length of effort arm, and
(c) the mechanical advantage of the lever.
Tick the most appropriate answer.
A pair of scissors is an example of a/an
Answer the following in short.
What is the basis of the classification of levers?
Name the three classes of levers and state how are they distinguished. Give two examples of each class.
Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting metals have short blades and long handles.
Explain why the mechanical advantage of the class III type of lever is always less than 1.
Classify the following into levers:
A door
Classify the following into levers:
A catapult
