Zusammenfassung der Ressource
Force Mind Map
- What is force?
- An object that is
being pushed or
pulled into motion
- Force is decribes
by the strength of
force and direction
of motion
- Newton (unit)
measures the
strength of force.
- Netforce - Combination of newtons
- Calculated in two ways.
- Add two positive
numbers if force comes
from one direction.
- Add one positive and
negative if force comes
from different sides.
- Two types of forces
- Unbalanced Forces
- One force is greater
than the other, causing
motion, stop of motion,
or change in direction.
- Balanced Forces
- Equal amount of force
being released from both
directions = no
movement in object.
- Gravity
- A force that pulls
objects together.
- Universal Gravitation
- Sir Isaac Newton states that
the force of gravity occurs
between all objects in the
universe.
- Any two objects
attract each other.
- Factors Affecting
Gravity
- Distance
- More the distance between
two objects = less
gravitational pull.
- Mass
- Amount of
matter in an
object.
- More mass = greater
gravitational pull.
- Weight and Mass
- Weight is the amount of
force of gravity on a
person/object on a surface
of planet.
- Free Fall
- Force of gravity is
unbalanced.
- Acceleration speed on Earth: 9.8 m/s^2
(the amount velocity increases every
second an object falls).
- Air Resistance
- Objects falling in air
experience it. Air resistance
heads upwards.
- Terminal velocity
- Reached when force of air
resistance is = to the weight of
the object.
- Forces are balanced = no
acceleration
- Velocity increases
with air
resistance.
- Objects with greater surface
area = more air resistance.
- Projectile Motion
- Object that is
thrown.
- Object will fall back to
the ground due to
gravitational push.
- Friction
- Force that is being released by two
surfaces when rubbing on one
another.
- Force of friction depends on two
factors: pressure surfaces push
together + type of surface
- Static Friction
- Friction on objects
that aren't moving
- Rolling Friction
- Object rolls on a
surface.
- Fluid Friction
- When solid objects move
through fluids.
- Sliding Friction
- When two surfaces
slide over each other.
- The Laws of
Motion
- The Third Law of Motion
- It states that every action an object
makes will have the same equal, but
opposite reaction.
- Momentum
- A characteristic of the moving object
relating to its mass and the velocity (speed
and direction) of the object.
- Conservation of Momentum
- Conservation refers to the before and
after effects after a certain event.
- States that without the presence of
external force, there is no change in
the total momentum of an object
before and after collision.
- Momentum of a group of objects will
remain the same without the exertion of
external force.
- The Second Law of Motion
- The acceleration of an object depends on
the mass of an object and the amount of
force applied.
- Acceleration is determined by the
mass of the object and the net
force.
- Acceleration = Net force/Mass
- The First Law of Motion
- Object at rest will remain at rest without
external force act upon it. Or will remain
in constant velocity unless external force
is applied.
- Law of Inertia
- Inertia is a tendency,
behavior of an object to
remain at rest if no external
force is applied.