SEARCH
You are in browse mode. You must login to use MEMORY

   Log in to start

level: Permanent and induced magnets

Questions and Answers List

level questions: Permanent and induced magnets

QuestionAnswer
The regions of a magnet where its magnetic force is strongest, typically referred to as north and south poles.Magnetic Poles
What are magnetic poles?Magnetic poles are the regions of a magnet where its magnetic force is strongest, typically referred to as north and south poles.
Magnetic poles that have the same polarity, resulting in repulsion when brought near each other.Like Poles
Define like poles.Like poles are magnetic poles that have the same polarity, resulting in repulsion when brought near each other.
Magnetic poles that have opposite polarity, resulting in attraction when brought near each other.Unlike Poles
Explain unlike poles.Unlike poles are magnetic poles that have opposite polarity, resulting in attraction when brought near each other.
The force exerted by a magnet on other magnets or magnetic materials, causing attraction or repulsion.Magnetic Force
What is magnetic force?Magnetic force is the force exerted by a magnet on other magnets or magnetic materials, causing attraction or repulsion.
Forces that can act on objects without physical contact, such as magnetic and electrostatic forces.Non-contact Forces
Define non-contact forces.Non-contact forces are forces that can act on objects without physical contact, such as magnetic and electrostatic forces.
The pole of a magnet that, when freely suspended, points towards the Earth's geographic north.North Pole
What is the north pole of a magnet?The north pole of a magnet is the pole that, when freely suspended, points towards the Earth's geographic north.
The pole of a magnet that, when freely suspended, points towards the Earth's geographic south.South Pole
Define the south pole of a magnet.The south pole of a magnet is the pole that, when freely suspended, points towards the Earth's geographic south.
Magnets that maintain their own magnetic field without external influence, typically made from materials like iron, steel, cobalt, and nickel.Permanent Magnets
What are permanent magnets?Permanent magnets are magnets that maintain their own magnetic field without external influence, typically made from materials like iron, steel, cobalt, and nickel.
Materials that become magnetic when placed in a magnetic field, losing their magnetism when removed from the field.Induced Magnets
Define induced magnets.Induced magnets are materials that become magnetic when placed in a magnetic field, losing their magnetism when removed from the field.
The region around a magnet where its magnetic force is exerted on other magnets or magnetic materials.Magnetic Field
What is a magnetic field?A magnetic field is the region around a magnet where its magnetic force is exerted on other magnets or magnetic materials.
Materials that are attracted to magnets, including iron, steel, cobalt, and nickel.Examples of Magnetic Materials
Provide examples of magnetic materials.Examples of magnetic materials include iron, steel, cobalt, and nickel.
The property of magnetic materials being drawn towards magnets due to magnetic force.Attraction to Magnets
What does attraction to magnets mean?Attraction to magnets is the property of magnetic materials being drawn towards magnets due to magnetic force.
The property of non-magnetic materials being pushed away from magnets, typically absent in everyday materials.Repulsion from Magnet
Explain repulsion from magnets.Repulsion from magnets is the property of non-magnetic materials being pushed away from magnets, typically absent in everyday materials.
The process of losing magnetism, which occurs when a magnetic material is removed from a magnetic field.Demagnetization
What is demagnetization?Demagnetization is the process of losing magnetism, which occurs when a magnetic material is removed from a magnetic field.
Applications and objects that utilize permanent magnets for their magnetic properties.Uses of Permanent Magnets
What are the uses of permanent magnets?The uses of permanent magnets include creating objects like fridge magnets, car learner-plates, and compasses.
Objects designed to stick to refrigerators, typically made using permanent magnets.Fridge Magnets
Provide an example of an object made using permanent magnets.Fridge magnets are an example of objects made using permanent magnets.
Plates used by beginner drivers, often made using permanent magnets.Car Learner-Plates
What are car learner-plates made using?Car learner-plates are often made using permanent magnets.
Applications and scenarios where induced magnets are utilized, typically involving materials that become magnetic in the presence of a magnetic field.Uses of Induced Magnets
What are the uses of induced magnets?Induced magnets are used in scenarios where materials become magnetic, such as in a magnetic noticeboard.
Navigational instruments that utilize a magnetic needle, often made using permanent magnets, to indicate Earth's magnetic north pole.Compasses
How are compasses made?Compasses are often made using permanent magnets, ensuring the needle always points towards Earth's magnetic north pole.
A board that becomes an induced magnet when a permanent magnet is used to attach items to it.Magnetic Noticeboard
What is a magnetic noticeboard?A magnetic noticeboard is a board that becomes an induced magnet when a permanent magnet is used to attach items to it.
The northern point on Earth towards which compass needles point, influenced by Earth's magnetic field.Earth's Magnetic North Pole
What does Earth's magnetic north pole influence?Earth's magnetic north pole influences the direction of compass needles.
Regions around magnets or magnetic materials where a magnetic force is experienced.Magnetic Fields
What is a magnetic field?A magnetic field is a region where magnets or magnetic materials experience a magnetic force.
Imaginary lines used to represent the magnetic field around magnets, showing the direction and strength of the field.Magnetic Field Lines
How are magnetic fields represented?Magnetic fields are represented by field lines.
Arrows on magnetic field lines indicating the direction a magnetic north pole would experience a force at that point.Arrows on Field Lines
What do the arrows on field lines represent?The arrows on field lines represent the direction of the force a magnetic north pole would experience at that point.
The phenomenon where magnetic field lines never intersect or cross over each other.Crossing of Field Lines
Do magnetic field lines cross each other?No, magnetic field lines never cross over each other.
The spacing between magnetic field lines, indicating the strength of the magnetic field.Field Line Concentration
What does the spacing of field lines indicate?The spacing of field lines indicates the strength of the magnetic field.
The intensity of the magnetic field is greatest at the poles of a magnet.Magnetic Field Strength at Poles
Where is the magnetic field strength greatest?The magnetic field strength is greatest at the poles of a magnet.
A magnetic field where the field lines are evenly concentrated, and the strength is the same everywhere between the magnets.Uniform Magnetic Field
What is a uniform magnetic field?A uniform magnetic field is where the magnetic field lines are evenly concentrated, and the strength is the same everywhere between the magnets.
A navigational tool that relies on magnetism to determine direction, with its needle pointing towards the Earth's magnetic north pole.Magnetic Compass
What is a magnetic compass used for?A magnetic compass is used for navigation and determining direction by aligning with the Earth's magnetic field.
The needle of a magnetic compass, with one end representing the north pole.Compass Needle
Which end of the compass needle represents the north pole?The tip of the compass needle represents the north pole.
The principle that like magnetic poles repel each other, and unlike magnetic poles attract each other.Like and Unlike Poles
What happens between like and unlike magnetic poles?Like magnetic poles repel each other, and unlike magnetic poles attract each other.
A compass used in scientific experiments to map or draw magnetic field lines around a magnet.Plotting Compass
What is a plotting compass used for in experiments?A plotting compass is used to map or draw magnetic field lines around a magnet in scientific experiments.
Imaginary lines that indicate the direction a north pole of a magnet would follow in a magnetic field.Field Lines of a Magnetic Field
What do field lines of a magnetic field represent?Field lines of a magnetic field represent the direction a north pole of a magnet would follow in the field.
The process of following the direction of a compass needle near a magnet to draw a diagram of magnetic field lines.Tracing Field Lines
How can you create a diagram of magnetic field lines?By tracing the direction of a compass needle near a magnet, you can create a diagram of magnetic field lines.
A visual representation of the magnetic field around a magnet, created by tracing the compass needle's direction.Diagram of Magnetic Field Lines
What does a diagram of magnetic field lines illustrate?A diagram of magnetic field lines illustrates the pattern and direction of the magnetic field around a magnet.
The magnetic field produced by the Earth, similar to that of a giant bar magnet, which influences the behavior of compass needles.Earth's Magnetic Field
Why do compasses point north on Earth?Compasses point north because the Earth has a magnetic field, and they are attracted to the south pole of the Earth's magnet.
The point on the Earth's surface that corresponds to the northernmost point on the Earth's axis of rotation.Earth's Geographic North Pole
Is the geographic North Pole the same as the magnetic north pole?No, the Earth's geographic North Pole is not the same as its magnetic north pole.
The location in the Southern Hemisphere to which the north-seeking pole of a compass is attracted.Magnetic South Pole of Earth
What do compasses point towards on Earth?Compasses point towards the magnetic south pole of the Earth, located in the Southern Hemisphere.
The central part of the Earth, composed primarily of iron and nickel, where magnetic materials contribute to the Earth's magnetic field.Earth's Core
What materials in the Earth's core contribute to its magnetic field?Iron and nickel, which are magnetic materials, contribute to the Earth's magnetic field.
Observable phenomena, such as compass behavior, indicating that the Earth's core has magnetic properties.Evidence of Earth's Core Magnetism
What is evidence that the Earth's core is magnetic?The behavior of compasses, pointing towards the magnetic south pole, serves as evidence that the Earth's core is magnetic.
Substances, such as iron and nickel, that can be magnetized and contribute to the creation of magnetic fields.Magnetic Materials
Name two magnetic materials found in the Earth's core.Iron and nickel are magnetic materials found in the Earth's core.
The tendency of a compass needle to align with the Earth's magnetic field, indicating magnetic north.Compass Needle Behavior
Why does a compass needle align with the Earth's magnetic field?A compass needle aligns with the Earth's magnetic field because it is attracted to the magnetic south pole, indicating magnetic north.