Class 6 Science Chapter 10 MCQ

Unlike poles attract and like poles repel each other. There are two most important properties of magnets are: i)A freely suspended magnet always point in the north south directions and ii)Like magnetic poles repel each other, unlike magnetic poles attract each other.

Bar magnet is attracted by a horseshoe magnet. Horseshoe magnet or bar magnet attract U-shaped magnet or any other kinds of magnet. Remember, one thing that every magnet attracts other magnet.

The region of a magnet where the attraction of magnet is the strongest are called poles of the magnet. We know that a magnet has always two poles (whatever its shape may be), one pole of the magnet is called north pole and the other pole of magnet is called south pole. If a bar magnet is put into a heap of iron filings, then the iron filings will clinging to it or stick to it. The maximum amount of iron filings cling to the two ends of the bar magnet because some force of attraction also exists in the middle part of the bar magnet but it is very small.

Here, are all the statements are correct. Hence, your answer will be option [D].

Temporary magnets are made from soft iron not from silver, steel or copper.

Here, are all the statements are correct. Hence, your answer will be option [D].

Those materials which are attracted by magnet are called magnetic materials. Iron, steel, nickel and cobalt are attracted by magnet. So, iron, steel, nickel and cobalt are magnetic materials. The most common and important magnetic materials are however Iron and Steel.

Actually, there is a steel blade in the middle of sharpener. It is due to the presence of a steel blade (which is magnetic) in the middle of a sharpener. That is attracted by a magnet. Remember, magnet do not attract non-magnetic materials, magnet attracts only magnetic materials.

A magnet or a magnetic compass can be used to navigate during any time of the day. A magnet or a magnetic compass has no specific time to work. It can be used anytime of the day.

Two poles of a magnet are the point inside a magnet where magnetic effects (attraction or repulsion) is strongest. It can be understand very easily. For example, if a bar magnet is put into a heap of iron filings, then the iron filings will clinging to it or stick to it. The maximum amount of iron filings cling to the two ends of the bar magnet because some force of attraction also exists in the middle part of the bar magnet but it is very small.

The end of magnet which points towards the north direction is called north-seeking end or north pole of the magnet. The end of magnet which points towards the south direction is called south-seeking end or south pole of the magnet. It is impossible to have a magnet having only one pole. Every magnet, whether big or small, has a north pole and south pole. In any condition, when we cut a magnet in two parts, we get two magnets each with north and south pole.

The compass is an instrument to find the direction at a place. The compass is based on the property of a freely pivoted magnet to align itself along the north-south direction. The compass has a tiny magnet in the form of a needle which can rotate freely on a pivot or pin. The pivoted magnetic needle of a compass is enclosed in a small brass box having a glass top. The needle of compass always comes to rest along the north-south direction. A compass helps the people to find their way.

Those materials which are attracted by magnet are called magnetic materials. Iron, steel, nickel and cobalt are attracted by magnet. So, iron, steel, nickel and cobalt are magnetic materials. The most common and important magnetic materials are however Iron and Steel. Hair pins, paper clips, iron nails all are made of either of iron or steel. So, iron, steel, nickel and cobalt are magnetic materials.

The compass is an instrument to find the direction at a place. The compass is based on the property of a freely pivoted magnet to align itself along the north-south direction. The compass has a tiny magnet in the form of a needle which can rotate freely on a pivot or pin. The pivoted magnetic needle of a compass is enclosed in a small brass box having a glass top. The needle of compass always comes to rest along the north-south direction. A compass helps the people to find their way. A thermometer is a device that measures temperature or a temperature gradient (the degree of hotness or coldness of an object) A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. An anchor is a device, normally made of metal, used to connect a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current.

Those materials which are attracted by magnet are called magnetic materials. Iron, steel, nickel and cobalt are attracted by magnet. So, iron, steel, nickel and cobalt are magnetic materials. The most common and important magnetic materials are however Iron and Steel.

As we know that, magnets can also be made by using electricity. The magnets made by using electricity are called electromagnets. Electromagnets are very useful because their magnetism or power of attraction can be switched “on” or “off” as desired. That means it is temporary magnet. As an example, if the electric current is switched on through its coil the electromagnet gets its magnetism and starts behaving like a magnet, when it is switched off the electromagnet losses all its magnetism that means (it no longer behaves as a magnet). So, it is considered as temporary magnet.

Those materials which are attracted by magnet are called magnetic materials. Iron, steel, nickel and cobalt are attracted by magnet. So, iron, steel, nickel and cobalt are magnetic materials. The most common and important magnetic materials are however Iron and Steel. We can use a magnet to separate, steel staples from sand very easily.

The magnets lost their property of magnetism if they are heated strongly, hit with a hammer or dropped from a height. In other words, if a magnet is heated, hammered or dropped on floor, its magnetism is a destroyed (or demagnetized). It no longer remains a magnet.

The magnets lost their property of magnetism if they are heated strongly, hit with a hammer or dropped from a height. In other words, if a magnet is heated, hammered or dropped on floor, its magnetism is a destroyed (or demagnetized). It no longer remains a magnet. We should store the magnets properly (when not in use).

Here, are all the statements are correct. Hence, your answer will be option [D].

The magnets made by using electricity are called electromagnets. Electromagnets are very useful because their magnetism or power of attraction can be switched “on” or “off” as desired. That means it is temporary magnet. As an example, if the electric current is switched on through its coil the electromagnet gets its magnetism and starts behaving like a magnet, when it is switched off the electromagnet losses all its magnetism that means (it no longer behaves as a magnet). So, it is considered as temporary magnet.

We know that there are two most important properties of magnets are: i) A freely suspended magnet always point in the north south directions and ii) Like magnetic poles repel each other, unlike magnetic poles attract each other. As, north pole brought near to south pole of another magnet which attracts.

In this high advance technical era, we use the global positioning system (GPS) for navigation which tells us about direction and our position on earth.

A freely suspended magnet always point in a north-south direction.

A nickel wire is attracted by magnet. Those materials which are attracted by magnet are called magnetic materials. Iron, steel, nickel and cobalt are attracted by magnet. So, iron, steel, nickel and cobalt are magnetic materials. The most common and important magnetic materials are however Iron and Steel.