- What is the simplest requirement for an electromagnet?
- Why do magnets repel?
- Why can magnets attract objects without touching them?
- Are 2 magnets stronger than 1?
- What is the most magnetic material in nature?
- What objects do magnets repel?
- What causes things to attract or repel?
- Why there is no east and west pole?
- Can gravity push and pull?
- What is attract repel?
- Why do same pole magnets repel?
- Why does a magnetic compass always show North?
- What are examples of pushes and pulls?
- Where is the magnetic field the strongest?
- Do two north poles attract or repel?
What is the simplest requirement for an electromagnet?
A wire that has electrical current running through it creates a magnetic field.
In fact, the simplest electromagnet is a single wire that is coiled up and has an electric current running through it.
The magnetic field generated by the coil of wire is like a regular bar magnet..
Why do magnets repel?
All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the aligned atoms creates a magnetic field.
Why can magnets attract objects without touching them?
Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few ‘magnetic’ metals and not all matter. Magnets are attracted to and repel other magnets.
Are 2 magnets stronger than 1?
Two magnets together will be slightly less than twice as strong as one magnet. When magnets are stuck entirely together (the south pole of one magnet is connected to the north pole of the other magnet) you can add the magnetic fields together.
What is the most magnetic material in nature?
mineral magnetiteThe most magnetic material in nature is the mineral magnetite, also called lodestone (see Figure below). The magnetic domains of magnetite naturally align with Earth’s axis.
What objects do magnets repel?
Paramagnetic metals are weakly attracted to magnets, and include platinum, tungsten, aluminum and magnesium. Ferrimagnetic metals like magnetite are also attracted to magnets, while diamagnetic metals like silver and copper are repelled by them.
What causes things to attract or repel?
In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object. This repulsive force will push the two objects apart.
Why there is no east and west pole?
The shape of the Earth demands it. North and south are PHYSICAL PROPERTIES of the Earth, and so are east and west. We don’t have poles at east and west because that’s not the way the Earth turns.
Can gravity push and pull?
As a curvature, or warping of spacetime, gravity is neither a push nor a pull. Astronauts in orbit float freely, i.e., force-free, under the influence of gravity, even though they seem to be pulled in an accelerated path around the earth.
What is attract repel?
Every magnet has both a north and a south pole. When you place the north pole of one magnet near the south pole of another magnet, they are attracted to one another. When you place like poles of two magnets near each other (north to north or south to south), they will repel each other.
Why do same pole magnets repel?
Like-poles repel: We can use curvy arrows (called field lines) to draw the shape of the magnetic field around magnets. … When two like-poles point together, the arrows from the two magnets point in OPPOSITE directions and the field lines cannot join up. So the magnets will push apart (repel).
Why does a magnetic compass always show North?
A magnetic compass points to the earth’s magnetic poles, which are not the same as earth’s geographic poles. … When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole.
What are examples of pushes and pulls?
Push and Pull ExamplesPushing the trolley.Pushing of the car when it breaks down.Pushing the table from one place to another.
Where is the magnetic field the strongest?
As can be visualized with the magnetic field lines, the magnetic field is strongest inside the magnetic material. The strongest external magnetic fields are near the poles. A magnetic north pole will attract the south pole of another magnet, and repel a north pole.
Do two north poles attract or repel?
Magnets can also attract each other, but only if they face in opposite directions. A magnet has two ends called poles; one end is the north pole and the other is the south pole. A north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away.