Motion and force

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Motion and force
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• A force applied to an object can change the
  objects motion.

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• Motion is the change in an objects position.

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• Frame of reference is knowing if an object is
  moving or is at rest.

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• Newton is the scientist that discovered the laws
  of motion.

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Newtons First Law

• An object at rest, stays at rest. An object in
  motion, stays in motion unless a force is
  applied.

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• A push or pull that acts on an object is called
  force.

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• Resistance to a change in motion is called
  inertia.

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• Force
• Air Resistance

air
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• Speed is a measure of distance moved in a given
  amount of time.

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Formula for speed

• Speed equals distance divided by time
• SD/T
• S is for speed
• D is for distance
• T is for time

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Velocity

• Velocity measures both speed and direction.

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• Speed
• Direction. Going opposite ways.

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Acceleration

• A change in speed and direction is called
  acceleration.

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Balanced force

• Same amount of force on each side and therefore
  there is no movement.

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Unbalanced force

• There is different amounts of force coming from
  each side and therefore, the truck is going to
  move.

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Force mass x acceleration

• FMxA
• An objects acceleration depends on its mass and
  size of force acting on it.

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Newton

• Sir Isaac Newton was not only the scientist who
  formulated the Laws of Motion, his name is used
  for the units of motion.
• Like inches and feet are units, newtons are units
  too!

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Gravity

• A force that causes objects with mass to be
  attracted, or pulled, toward one another is
  called gravity.

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Friction

• Force that resists motion of one surface to
  another is friction.
• Air resistance or drag