Types of Forces Flashcards
A plasma is created when the sun’s charged particles are collected by the solar winds. These charged particles are then taken and captured by the Earth’s magnetic field and drawn towards the poles at a very high speed.
Aurora
Earth’s system of magnetic fields. It takes the shape of incoming space weather from the sun.
Magnetosphere
The interaction between two objects that has the ability to change the motion of one or both objects.
Force
They are interacting objects that are physically touching each other.
Contact Forces
There are six (6) contact forces.
Frictional force, tension force, normal force, air resistance force, applied force, and spring force.
Forces are generated by two surfaces that make contact and slide against each other. These forces are by surface texture and the amount of force.
Friction forces
What force is used to drill a nail into the wall?
Frictional force
A force using a string, rope, cable, or wire to pull object(s) acting from the opposite end.
Tension Force
What force is used as part of a crane?
Tension Force
It is a support force transmitted to an object to help another object to become stable.; opposite of gravity.
Normal Force
What force is used by a lady meditating on a floor mat?
Normal Force
A force is given to an object by a person or another object.
Applied Force
What force is used in kick boxing?
Applied Force
A force is a special type of friction where objects travel through air. This force is often to oppose the object’s motion.
Air resistance
What force is present as the rocket is launched?
Air resistance
A force that allows some materials to return to their original shape after being stretched or compressed.
Spring or Elastic Force
What force is used in a mattress?
Spring or Elastic Force
It is a force that is exerted on an object without physically touching the object(s).
Non-Contact force
What are three (3) non-contact forces?
They are gravitational force, magnetic force, and electrical force.
It is the attractive force between ANY two objects.
Gravity
What determines the strength of the gravity?
Mass and distance
Why is the sun’s gravitational force so enormously strong that it keeps the planets orbiting around the sun, and keeps Earth rotating on its axis?
The sun is the largest mass in the solar system.
The gravitational attraction between the Earth and the moon is the strongest causing the ocean waters on the “near side” of Earth to pull or bulge towards the moon.
High Tide
Where is gravity weaker on Earth?
Closer to the equator and at higher altitudes.
What force is present in waterfalls?
Gravity
Force exists between all charged particles. It is an attraction or repulsion between any two charged objects.
Electric Force
What is the relationship between any two charged objects.
Attraction or repulsion between any two charged objects.
The strength of the Electric forces depends on what?
The strength of an electric force depends on the size, or magnitude, of the charges and the distance between them.
What are negative charges?
Electrons
What are positive charges?
Protons
What charges repel?
Like charges will repel. The charges will push each other away.
What charges attract?
Unlike charges will attract. The charges will push each other together.
What happens when electrons move easily from one atom to another?
Imbalance of electrons
If an atom has an equal number of protons and electrons.
Then, the atom is electrically neutral, no electrical charge.
If an atom has an unequal number of protons and electrons…
Then, the atom is electrically charged.
It is an atom or molecule that has an electric charge.
Ion
What makes an atom different from an ion?
An atom is electrically neutral; the same number of protons and electrons; and the number of protons identify the element.
What makes an ion different from an atom?
An ion is electrically charged; a different number of protons and electrons; and may have more than one atom.
Ions with a positive charge
Cations
Ions with a negative charge
Anions.
It is a plasma created from an imbalance of free electrons meeting up with the positive charges on Earth.
Lightning
A force that a magnet exerts on certain materials like iron, steel, nickel, and cobalt.
Magnetic force
It contains magnetic properties even after the magnetic field is removed.
Ferromagnetism.
Referred to materials like aluminum and platinum which can become magnetized in a magnetic field, but their magnetism disappears once the magnetic field is removed.
Paramagnetism
Why is a magnetic force a non-contact force?
It can act from a distance. The magnet produces a magnetic field that when it is close enough will attract to the object.
What is the relationship between the object and the magnet?
The magnet and the object may attract or repel.
A magnet has two poles.
There is the North Pole and the South Pole.
Name the different shapes of a magnet.
Bar magnet; U shape magnet; neodymium; Electromagnet; needle magnet; and Horseshoe.
Like poles of a magnet
Repel
Unlike poles of a magnet
Attract
An area around the magnet that has a magnetic force.
A magnetic field
Where is the strongest strength of a magnet?
Closest to the poles
This magnet has a North and South Pole; is temporary since they lose their magnetic property once not in contact with a magnet.
Temporary magnets
Iron nails and paper clips are examples of this type of magnet.
Temporary magnets
This magnet has a magnetic field; has a North and South Pole; and is permanent since they do not lose their magnetic property once they are magnetized.
Permanent magnets
This type of magnet consists of a coil of wire wrapped around the metal core made from iron. It needs an electrical current to create a magnetic field, making the material behave like a magnet.
Electromagnets
This type of magnet has a magnetic field; has a North and South Pole; and is temporary since the magnetic field can be turned off and on.
Electromagnets
What are the five (5) characteristics of a magnet?
The characteristics of a Magnet:
Attractive Property; Directive Property; Law of Magnetic Poles;
Pair Property; and Sure test of magnetism
This property proves that the
magnetic strength at the ends of the poles is strong.
Attractive Property
This property helps to understand
which pole of the magnet is north and south by suspending
the magnet in mid-air. A freely suspended magnet always
comes to rest pointing to the Earth’s north-south direction.
Directive Property
Like poles repel while unlike poles attract.
Law of Magnetic Poles
When a magnet is cut in half, both
the pieces will form a new North and South pole.
Pair Property
A test is made of an iron rod is
magnetized or not by checking its attraction or its repulsion
to the magnet.
Sure test of magnetism
What force is used in a Roller coaster?
Magnetic Force
