Mind Map by singh.n.319, updated more than 1 year ago
Created by singh.n.319 over 6 years ago


This is a bit info upon force

Resource summary

  1. Net Force
    1. Combination of all forces
      1. Determines whether an object moves moves and also direction
        1. If force is in same direction, then the force gets added
          1. If forces are in opposite direction, they combine by subtraction
        2. Newton
          1. Strength of a force is measured in SI Unit called Newton
            1. Was named after Sir Isaac Newton
            2. Balanced Force
              1. The motion of the object is not changed
                1. Net force is zero because equal forces are exerted in opposite directions
              2. Unbalanced Force
                1. It can cause an object to start, stop or change direction of an object in motion
                  1. It can result in a net force and cause change in an object's motion
                2. Force is push or pull exerted upon an object
                  1. Force is described by its strength and which direction it acts
                    1. The formula to find force=mass*acceleration
                  2. Friction
                    1. The force that two surfaces exert on each other when they rub against each other
                      1. Strength of force of friction depends on how hard surfaces press against each other and the type of surface involved
                        1. Rough surface would result in more friction
                      2. Static Friction: Static friction is the friction that exists between a stationary object and the surface on which it's resting.
                        1. Sliding Friction: Sliding friction results when an object slides across a surface.
                          1. Rolling Friction: A Rolling friction is a resistive force that opposes the rolling motion of an object. Rolling friction occurs when a round object rolls around a surface.
                            1. Fluid Friction: Fluid friction is the friction between a solid object as it moves through a liquid or a gas
                            2. Gravity
                              1. Universal Gravitation states that force of gravity acts between all objects in the universe
                                1. A force that pulls objects towards each other
                                  1. Mass and distance affect gravity
                                    1. Mass is measure of amount of matter in an object. Its SI unit is kilogram.
                                    2. Weight is a measure of the gravitational force exerted on an object. It is also force of gravity on a person or object at the surface of a planet.
                                      1. In Free Fall, the force of gravity is unbalanced, so the object accelertes
                                        1. Air Resistance is a force that is caused by air. The force acts in the opposite direction to an object moving through the air. It is a type of fluid friction
                                          1. Terminal velocity is the greatest velocity a falling object reaches and is reached when the force of air resistance equals the weight of the object
                                          2. Projectile motion is a form of motion in which an object or particle is thrown near the earth's surface, and it moves along a curved path under the action of gravity only. The only force of significance that acts on the object is gravity, which acts downward to cause a downward acceleration
                                          3. Laws Of Motion
                                            1. First Law: An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force
                                              1. Second Law: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
                                                1. Third Law: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.
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