types of forces

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types of forces

ELECTRICAL FORCE

DEFINE the repulsive interaction between two charged bodies

EXAMPLE The shock that is felt after touching a doorknob.

UNITS It is measured in newton

Advantages Very high collection efficiencies, even for very small particles DISADVANTAGE Cannot control gaseous emissions

USES thr charge in electrical bulb

facts Objects with the same charge, both positive and both negative, will repel each other, and objects with opposite charges, one positive and one negative, will attract each other

frictional force

define Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

examples rubbing your hands

units the unit of friction is newton

ADVANTAGE it helps to support ledder against the wall DISADVANTAGE Heat is generated at this surface of contact due to the opposing force of friction.

uses it is used in car brakes

FACTS it can generate static electricity

GRAVITATIONAL FORCE

DEFINE gravitation is the force that pulls two masses toward each other.

EXAMPLE it is the force that holds suns harmfull gasses

UNITS newton

ADVANTAGE it allows earth to retain its gravity DISADVANTAGE earth will end up heating of sun from far away if no gravitational force

USES it helps in keep all the planets to stay in their own orbit

NUCLEAR FORCE

DEFINE Nuclear forces are the forces that act between two or more nucleons.

example is the binding of protons

units of nuclear force 10,000 N

Pros of nuclear energy Cons of nuclear energy Carbon-free electricity Uranium is technically non-renewable Small land footprint Very high upfront costs

uses The nuclear force has an essential role in storing energy that is used in nuclear power and nuclear weapons

facts The strong nuclear force is one of four fundamental forces in nature. The strong force is 'felt' between nucleons (protons and neutrons)

MAGNETIC FORCE

DEFINE attraction or repulsion that arises between electrically charged particles because of their motion.

Examples of magnetic force is a compass

unit of H is amperes per metre

advantages Magnetic forces can be used to aid humans through technology Disadvantages : Magnetism starts to decrease (and can be permanently lost) at 80°C*

uses Magnetic fields can be used to make electricity

facts magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion.