Project- Write
the types of
forces with three
examples of each
force and explain
about its effects
and pressure
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KINDS OF FORCE
CONTACT FORCE
Force that comes into action after the interaction between objects is called contact force. Contact force acts on the point of contact. For contact force; interaction between objects is necessary. Example; pushing a car, opening a drawer, kicking a ball, etc. In these examples, interaction between objects is necessary.
Muscular force, force of friction, etc. are types of contact force.
Muscular Force: -
Force caused by the action of muscles is called muscular force. In other words, force resulting because of action of muscle is called muscular force. Muscular force is applied only after interaction with the object. Hence it is a type of contact force.
Example : –
While kicking a ball, the player applies force over the ball using his leg muscles.
While opening a drawer, you pull the drawer holding it by hand. In this action, muscles of your hand apply the force.
While pulling a cart, the horse or the ox applies the force of its muscles.
FRICTION:
Force acting between the surfaces of two objects is called the force of friction. Force of friction always acts in the opposite direction of the movement of object. Force of friction is acting over all the moving objects.
Example -
A moving football stops after going to a certain distance. This happens because of force of friction between the surface of ground and the surface of football.
A moving boat stops after some distance because of friction between the surface of water and the surface of boat.
Since force of friction comes into action only after interaction between two objects, thus, it is a type of contact force.
Non – contact Force
Force that comes into action without interaction between two objects is called non-contact force. For example; a magnet can pull an iron nail from a distance.
Magnetic force, Electrostatic force and Gravitational force are examples of non-contact force.
Magnetic Force:
Force exerted by a magnet on another magnet or on magnetic substances is called magnetic force. A magnet can exert force even without coming in contact, thus it is a non-contact force.
Example – A magnet attracts the opposite pole of another magnet and repels the similar pole of another magnet.
Electrostatic Force:
Force exerted by a charged body is called electrostatic force. A charged body attracts an uncharged body. A positively charged body attracts a negatively charged body and repels a positively charged body without coming in contact, thus it is a non-contact force.
Gravitational Force:
Force exerted by earth, moon, sun and other planets is called gravitational force. Earth attracts all objects towards it. Similarly, all other planets along with moon attract all objects towards them. Since, earth attracts all objects even without coming in contact, thus gravitational force is a non-contact force.
Example –
When anything is released from a height, it falls over the ground because of gravitational pull of earth.
CONTACT FORCE
Force that comes into action after the interaction between objects is called contact force. Contact force acts on the point of contact. For contact force; interaction between objects is necessary. Example; pushing a car, opening a drawer, kicking a ball, etc. In these examples, interaction between objects is necessary.
Muscular force, force of friction, etc. are types of contact force.
Muscular Force: -
Force caused by the action of muscles is called muscular force. In other words, force resulting because of action of muscle is called muscular force. Muscular force is applied only after interaction with the object. Hence it is a type of contact force.
Example : –
While kicking a ball, the player applies force over the ball using his leg muscles.
While opening a drawer, you pull the drawer holding it by hand. In this action, muscles of your hand apply the force.
While pulling a cart, the horse or the ox applies the force of its muscles.
FRICTION:
Force acting between the surfaces of two objects is called the force of friction. Force of friction always acts in the opposite direction of the movement of object. Force of friction is acting over all the moving objects.
Example -
A moving football stops after going to a certain distance. This happens because of force of friction between the surface of ground and the surface of football.
A moving boat stops after some distance because of friction between the surface of water and the surface of boat.
Since force of friction comes into action only after interaction between two objects, thus, it is a type of contact force.
Non – contact Force
Force that comes into action without interaction between two objects is called non-contact force. For example; a magnet can pull an iron nail from a distance.
Magnetic force, Electrostatic force and Gravitational force are examples of non-contact force.
Magnetic Force:
Force exerted by a magnet on another magnet or on magnetic substances is called magnetic force. A magnet can exert force even without coming in contact, thus it is a non-contact force.
Example – A magnet attracts the opposite pole of another magnet and repels the similar pole of another magnet.
Electrostatic Force:
Force exerted by a charged body is called electrostatic force. A charged body attracts an uncharged body. A positively charged body attracts a negatively charged body and repels a positively charged body without coming in contact, thus it is a non-contact force.
Gravitational Force:
Force exerted by earth, moon, sun and other planets is called gravitational force. Earth attracts all objects towards it. Similarly, all other planets along with moon attract all objects towards them. Since, earth attracts all objects even without coming in contact, thus gravitational force is a non-contact force.
Example –
When anything is released from a height, it falls over the ground because of gravitational pull of earth.
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Force➫ Any interaction that when unopposed will change the motion of an object.
♦ It's SI unit is Newton (N).
♦ It has both magnitude & direction, making it a vector quantity.
♦ It can cause an object with mass to change its velocity to accelerate.
➊❭ Effects 0f Force are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ It can make a stationary object move or change its position of rest.
♦Ex:- When you kick a stationary Football it will in motion.
❱ It can change the speed of a moving object.
♦Ex:- When goalkeeper applies force to stop the football.
❱ It can change the direction of motion of a moving object.
♦Ex:- When a batsman hits a ball.
❱ It can change the shape or size of an object.
♦Ex:- When you squeeze a sponge.
❷❭ Types 0f Force are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❲1❳ Contact Force➫ A force that acts only when it is in contact with an object.
♦Ex:- Pushing a car up a hill.
❱ Types 0f Contact Force:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Muscular➾ The force which is exerted by the muscle of your body.
♦Ex:- When you lift your School's Bag.
❱ Frictional➾ The force generated by two surfaces that contacts & slide against each other.
♦Ex:- A person sliding down a slide.
❲2❳ Non-Contact Force➫ A force that acts on an object without being in contact with it.
♦Ex:- Leaves falling from a tree.
❱ Types 0f Non-Contact Force:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Gravitational➾ A force that attracts any two objects with mass.
♦Ex:- Leaves falling from trees.
❱ Magnetic➾ The force that arises due to the motion of charged particle within the magnetic field.
♦Ex:- Iron pin attracted to magnet.
❱ Electrostatic➾ The attraction or repulsion of particles or objects because of their electric charge.
♦Ex:- When you rub a comb in hair.
_________
Thanks...✊
✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭
┗─━─━─━─━∞◆∞━─━─━─━─┛
Force➫ Any interaction that when unopposed will change the motion of an object.
♦ It's SI unit is Newton (N).
♦ It has both magnitude & direction, making it a vector quantity.
♦ It can cause an object with mass to change its velocity to accelerate.
➊❭ Effects 0f Force are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ It can make a stationary object move or change its position of rest.
♦Ex:- When you kick a stationary Football it will in motion.
❱ It can change the speed of a moving object.
♦Ex:- When goalkeeper applies force to stop the football.
❱ It can change the direction of motion of a moving object.
♦Ex:- When a batsman hits a ball.
❱ It can change the shape or size of an object.
♦Ex:- When you squeeze a sponge.
❷❭ Types 0f Force are:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❲1❳ Contact Force➫ A force that acts only when it is in contact with an object.
♦Ex:- Pushing a car up a hill.
❱ Types 0f Contact Force:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Muscular➾ The force which is exerted by the muscle of your body.
♦Ex:- When you lift your School's Bag.
❱ Frictional➾ The force generated by two surfaces that contacts & slide against each other.
♦Ex:- A person sliding down a slide.
❲2❳ Non-Contact Force➫ A force that acts on an object without being in contact with it.
♦Ex:- Leaves falling from a tree.
❱ Types 0f Non-Contact Force:-
▬▬▬▬▬▬▬▬▬▬▬▬▬⤵
❱ Gravitational➾ A force that attracts any two objects with mass.
♦Ex:- Leaves falling from trees.
❱ Magnetic➾ The force that arises due to the motion of charged particle within the magnetic field.
♦Ex:- Iron pin attracted to magnet.
❱ Electrostatic➾ The attraction or repulsion of particles or objects because of their electric charge.
♦Ex:- When you rub a comb in hair.
_________
Thanks...✊
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