Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron.

Answer. D)The force can both repel and attract materials.

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.

The processes of magnetism occur on the atomic level. Magnets are surrounded by an invisible magnetic field that is made by the movement of electrons, the subatomic particles that circle the nucleus of an atom. The hyperactivity of these electrons gives magnets their ability to attract and repel.

Most materials are diamagnetic. Water, wood, people, plastic, graphite and plaster are all examples of diamagnetic materials. While we usually think of these materials as non-magnetic, they actually repel (and are repelled by) a magnetic field.

Magnets are always attracted to ferromagnetic substances like iron, cobalt, nickel and the alloys containing them (example: steel). Ferromagnetic materials not only get attracted to magnets, but they can also retain the magnetic properties after the magnet is removed.

The presence of the magnet elicited a distinct reaction from Mosquitoes — they dart away from it. Sure enough, the magnets repelled the Mosquitoes with surprising results.

The farther two magnets are apart from each other, the weaker the repulsion force will be. Our Repelling Force Magnet Calculator offers a way to quantify these forces online. For example, a pair of RX054 magnets will repel each other with about 25 lb when touching, but only 5.4 lb when held at a distance of 1/4″ apart.

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).

Magnetism can work over a distance, meaning that a magnet does not have to be touching an object to attract it or repel it. Only certain metals have magnetic properties, namely iron, nickel, cobalt, and a few rare-earth metals such as neodymium.

Answer. Answer: Iron filings are then aligned with the force field between the two magnets. Because iron filings are aligned with the force field, they move away from the middle between the two magnets when you gently shake the paper.

Examples of this force include: electricity, magnetism, radio waves, microwaves, infrared, visible light, X-rays and gamma rays. Electromagnetism mediates all chemical, biological, electrical and electronic processes.

The three types of non-contact forces are gravitational force, magnetic force, electrostatic and nuclear force.

Examples of contact forces include:

• Reaction force. An object at rest on a surface experiences reaction force .
• Tension. An object that is being stretched experiences a tension force.
• Friction. Two objects sliding past each other experience friction forces.
• Air resistance.

encompasses gravity and magnetism. There are four types There are four types of contact forces Normal force, applied forces Normal force, applied forces Normal force, applied force, tension force and spring force.

When you push a computer mouse that is sitting on a flat surface, this is an example of contact force between your hand and the mouse. The mouse would not move unless a force, in this case your hand, was in contact with it. Other examples include: using your hand to pull out a desk chair so you can sit down.

Though gravity holds planets, stars, solar systems and even galaxies together, it turns out to be the weakest of the fundamental forces, especially at the molecular and atomic scales.