ICSE ICSE Class 6 - CISCE Question Bank Solutions

Tick the most appropriate answer.

A permanent magnet can be demagnetized by

Fill in the blank.

Permanent magnets are generally made of steel, cobalt, nickel, or an alloy called ...............

State if the following statement is true or false. Correct the statement if it is false.

Temporary magnets are made of cobalt.

Give a reason for the following.

Electromagnets are temporary magnets.

Answer the following in detail.

Distinguish between a temporary magnet and a permanent magnet.

Write true or false of the following statement.

Single touch method is better than the electrical method for making a magnet.

Fill in the blank:

The S.I. unit of length is ............ of time is ............ of mass is ............

Describe in steps how would you measure the length of a pencil using a metre rule. Draw a diagram if necessary.

State if the following statement is true or false: 

In ancient times, a cubit was used to measure the mass of an object.

Answer the following in short.

Which unit will you use to find the length of your notebook and why?

State whether the following statement is True or False.

All levers are force multipliers.

Fill in the blank:

In class II levers, the load is in between fulcrum and .........

What is a lever?

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.

What do you mean by the mechanical advantage of a lever?

Which class of lever has the mechanical advantage always more than 1? Give an example.

Which class of lever has the mechanical advantage always less than 1? Give an example.

Give one example of a class I lever where the mechanical advantage is more than 1.

Give one example of a class I lever in a case where the mechanical advantage is equal to 1?

Give one example of a class I lever in a case where the mechanical advantage is less than 1?