The Dynamics of Newtons Laws

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The Dynamics of Newtons LawsDynamics is the
study of forces which cause motion

• By Callie Arnold and Amy Ginter

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Magnetic Force

• A force that exists between two electrically
  charged moving particles.
• They are very large compared to gravitational
  forces.
• Electric and magnetic forces are very closely
  related.

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Electric Force

• Very large.
• Produces magnetic forces by moving electric
  charges.
• Results from electron repulsion of two objects.

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Gravitational Force

• The weakest of all the forces.
• It is very small compared to magnetic and
  electric forces.

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Weak Interaction and Nuclear Force

• The strongest of all the forces.
• Some power plants use nuclear power to provide
  electricity to cities today.
• Holds the nucleus of an atom together.

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Newtons First Law

• A body continues in its state of rest, or of
  uniform motion in a straight line, unless it is
  acted upon by a net external force.
• If you roll a tennis ball on the floor it will
  keep going unless its acted on by an outside
  force.

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Newtons Second Law

• When an unbalanced force acts on a body, the body
  will be accelerated.
• Two cars, one at rest and one driving in a
  straight line, and they collide. The car at rest
  is acted upon by the moving car.

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Newtons Third Law

• Every force is accompanied by an equal and
  opposite force.
• A charged body repels another body.

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FMA

• Force equals mass times acceleration
• If the force of your hammer on a nail is 36, then
  your mass and acceleration would be 6.

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MF/A

• Mass equals force times acceleration
• If your mass of the hammer is 8, then your force
  could be 32 and your acceleration could be 4.

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AF/M

• Acceleration equals force divided by mass
• If the acceleration of your hammer is 12, then
  your force could be 144 and your mass could be 12

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WMG

• Weight equals mass times gravity
• If your weight is 48, then your mass could be 12,
  and your gravity could be 4.

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MW/G

• Mass equals weight divided by gravity
• If your mass is 11, then your weight could be 22
  and your gravity would be 2.

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GW/M

• Gravity equals weight divided by mass
• A car could have the gravity of 100, weight of
  200, and mass of 2.

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