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Give a reason for the following.
Electromagnets are temporary magnets.
Concept: undefined >> undefined
Answer the following in detail.
Distinguish between a temporary magnet and a permanent magnet.
Concept: undefined >> undefined
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Write true or false of the following statement.
Single touch method is better than the electrical method for making a magnet.
Concept: undefined >> undefined
Fill in the blank:
The S.I. unit of length is ............ of time is ............ of mass is ............
Concept: undefined >> undefined
Describe in steps how would you measure the length of a pencil using a metre rule. Draw a diagram if necessary.
Concept: undefined >> undefined
State if the following statement is true or false:
In ancient times, a cubit was used to measure the mass of an object.
Concept: undefined >> undefined
Answer the following in short.
Which unit will you use to find the length of your notebook and why?
Concept: undefined >> undefined
State whether the following statement is True or False.
All levers are force multipliers.
Concept: undefined >> undefined
Fill in the blank:
In class II levers, the load is in between fulcrum and .........
Concept: undefined >> undefined
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
Concept: undefined >> undefined
What do you mean by the mechanical advantage of a lever?
Concept: undefined >> undefined
Which class of lever has the mechanical advantage always more than 1? Give an example.
Concept: undefined >> undefined
Which class of lever has the mechanical advantage always less than 1? Give an example.
Concept: undefined >> undefined
Give one example of a class I lever where the mechanical advantage is more than 1.
Concept: undefined >> undefined
Give one example of a class I lever in a case where the mechanical advantage is equal to 1?
Concept: undefined >> undefined
Give one example of a class I lever in a case where the mechanical advantage is less than 1?
Concept: undefined >> undefined
Name the class to which the following lever belong:
A pair of scissors
Concept: undefined >> undefined
Name the class to which the following lever belong:
a lemon squeezer
Concept: undefined >> undefined
Name the class to which the following lever belong:
a nutcracker
Concept: undefined >> undefined
