Advertisements
Advertisements
प्रश्न
What type of magnet is fitted on a crane to separate scrap iron objects from a heap of waste materials in factories ?
Advertisements
उत्तर
Electromagnets are fitted in cranes to separate scrap iron objects from a heap of waste material in factories.
APPEARS IN
संबंधित प्रश्न
Define the following term of Matter .
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
A kind of matter which can sublime is
When a crystal of potassium permanganate is placed in a beaker, its purple colour spreads throughout the water. What does this observation tell us about the nature of potassium permanganate and water?
Name a non-metal which is a good conductor of electricity.
What is meant by saying that non-metals are brittle ?
What elements do the following compounds contain ?
Sugar, Common salt
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
Out of a colloid, solution and a suspension :
which one has the smallest particles ?
Choose one term from the following which includes the other three :
aerosol, emulsion, colloid, sol
Which of the following is a sol ?
Shaving cream, Milk, Fog, Soap solution, Hairspray
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
Write a few lines on the blackboard with a chalk. Now observe the chalk. What changes do you see in the chalk?
Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?
______ is not made of matter.
Which among the following is not a matter?
In Aerosol the dispersed phase is liquid and the dispersion medium is gas.
Gases change to liquid by the process of ______.
The phenomenon of Evaporation takes place at the ______ of a liquid.
Define the term matter.
