Ncert- CLASS 6 – SCIENCE- Chapter 10: Fun with Magnets 2 Welcome to your Ncert- CLASS 6 - SCIENCE- Chapter 10: Fun with Magnets 2 1. What kind of magnet is used in a magnetic compass ? electromagnet temporary magnet permanent magnet none of the above None 2. How will hammering a bar magnet affect Its magnetic strength? Will not change Is likely to increase None of the above Is likely to decrease None 3. A marine compass is used to determine H determine direction compare magnetic moments determine dip at a place None 4. Magnetic strength of the magnet is Distributed uniformly throughout the magnet Concentrated at one of the poles of the magnet Concentrated in the centre of magnet Concentrated at both the poles of the magnet None 5. The device used by sailors and navigator to know the direction is called Speedometer Direction finder Wind vane Magnetic compass None 6. Which shape of magnet is used in electric bell? Bar magnet Horse-shoe shaped Cylindrical magnet Ball-ended magnet None 7. The marked end of a compass needle always points directly to Earth's geographic South Pole A magnet's north pole Earth's geographic North Pole A magnet's south pole None 8. Which of the following will help demagnetizing a magnet ? Putting in contact with iron Hammering the magnet Putting it in the water Cooling it None 9. The N-pole of a compass points to the .............. pole of a permanent magnet north-east north south south-east None 10. Which types of magnet have two poles close to each other? Bar magnet Horse-shoe magnet Cylindrical magnet Electromagnet None 11. How is a compass used to find directions? When suspended freely the compass needle aligns itself in the east-west direction which gives us the perpendicular direction to the needle as north and south poles When suspended freely the compass needle aligns itself in the north-south direction which gives us the direction of the north and south poles When suspended freely the compass needle starts rotating in a particular plane and the axis of rotation perpendicular to the plane gives us north and south poles When suspended freely the compass needle aligns itself in the vertically up-down direction which gives us the perpendicular direction to the needle as north and south poles None 12. Complete the following statements with an appropriate word / term to be filled in the blank space(s).A compass needle is a ________ magnet : small super fieldless big None 13. What is the circular enclosure that the magnetic compass is placed in ? nickel case iron case aluminium case stainless steel case None 14. The presence of magnetic field at a point can be detected by galvanometer ammeter strong magnet a compass needle None 15. Which of the following is not attracted by a magnet? cobalt nickel bronze steel None 16. The end of a free hanging magnet which points towards North is called East pole West pole South pole North pole None 17. _______ is the surest test of magnetism. Attraction None of the above No change Repulsion None 18. The answer to which of the following options will distinguish between a magnetic material and a non-magnetic material? Does it affect the direction in which a compass needle points? Is it a conductor or an insulator? Is it a metal of a non metal? Can it be given an electric charge? None 19. Which effect of force is caused by the magnetic force between a magnet and a magnetic substance? Change of shape. Change of chemical nature. Change of position. Change of physical state. None 20. Magnet was discovered by Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
