Quinn is studying biomagnetism. He knows that some animals use the Earth's magnetic field for navigation. Which of the following animals is known to use magnetic field for migration?
Magnetic field lines never:
Khalid is studying the uses of permanent magnets. He knows that permanent magnets are used in speakers and headphones. What is the role of the magnet in a speaker?
Iron filings are used to:
Bilal is studying diamagnetic materials. He knows that diamagnetic materials are repelled by magnets. Which of the following is a diamagnetic material?
Which of the following is a non-magnetic material?
Nora is studying the use of magnets in speakers. She knows that speakers convert electrical energy into sound energy. What part of a speaker uses a magnet?
Xia is studying magnetic shielding. She knows that magnetic shielding is used to protect sensitive equipment. What material is placed around equipment to shield it from magnetic fields?
Which of the following is diamagnetic?
Like magnetic poles will:
David is studying ferromagnetic materials. He knows that ferromagnetic materials are strongly attracted to magnets and can be permanently magnetized. Which of the following is a ferromagnetic material?
Which material can be magnetized easily?
Ibrahim is studying the solenoid method of inducing magnetism. He knows that a solenoid can be used to make an electromagnet. What happens when the current in the solenoid is turned off?
Hina is studying the direction of the magnetic field at a point. She uses a compass to determine the direction. In which direction does the north pole of a compass point in a magnetic field?
Sam is studying the Earth's magnetic field. She knows that the Earth behaves like a giant magnet. What is the direction of the Earth's magnetic field inside the Earth?
Ferromagnetic materials are:
Tina is studying the stroking method of inducing magnetism. She knows that stroking a steel bar with a magnet can magnetize it. What is the direction of stroking?
The region around a magnet where magnetic force is felt is called:
Zara is studying temporary magnets. She knows that temporary magnets are used in electric motors. What is the advantage of using temporary magnets in motors?
George is studying induced magnetism. He knows that a magnetic material can be magnetized by stroking it with a magnet. What is the method of magnetizing a steel bar by repeatedly stroking it called?
Uma is studying biomagnetism. She knows that some organisms detect the Earth's magnetic field for navigation. Which of the following organisms is known to use biomagnetism for navigation?
Which material is suitable for making electromagnets?
Magnetic shielding is used to:
Yusuf is studying the stroking method of inducing magnetism. He knows that stroking a steel bar with a magnet magnetizes it. What happens to the domains during stroking?
Rachel is studying the magnetic field of a bar magnet. She knows that the magnetic field is a vector quantity. What does the direction of the magnetic field represent?
The direction of Earthβs magnetic field is from:
Unlike magnetic poles will:
Oliver is studying the difference between magnetic and non-magnetic materials. He knows that magnetic materials contain unpaired electrons. What is the basis of magnetism in materials?
Julia is studying temporary magnets. She knows that temporary magnets are used in relays. What is the function of a relay?
Waseem is studying the force between magnetic poles. He knows that like poles repel and unlike poles attract. What happens when the north pole of one magnet is brought near the south pole of another?
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