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The Dynamics of Newton's Laws

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Newton's Laws & Forces – PowerPoint PPT presentation

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Title: The Dynamics of Newton's Laws

1
The Dynamics of Newtons Laws
• Mikayla Peyton

2
Magnetic Force
• Magnetic force is large when compared to
gravitational force
• A magnetic force occurs when a force is exerted
between magnetic poles
• Its also a force which exist between two
electrically charged particals

3
Electric force
• Electric force is the most observable of all
forces.
• An electric force occurs when a force is exerted
on an object.

4
Gravitational Force
• A gravitational force is the force of attraction
of all masses.
• Its also the force that holds you to Earth

5
Nuclear and weak interaction forces
• Nuclear forces only occurs within the nucleus of
an atom
• Scientists believe that another force exists
within the nucleus of an atom, this is called the
weak interaction force

6
Newtons 1st law of motion
• An object in motion stays in motion unless acted
upon by an outside force. An object at rest stays
at rest unless acted upon by an outside force.
• Newtons 1st Law of Motion is also known as the
Law of Inertia
• When you are riding in a car and the car stops,
you still move forward. This is because of
inertia

7
Newtons 2nd law of motion
• When an unbalanced force acts upon a body, the
body is then accelerated
• An example of this is you and your friend are
sitting in a chair with your feet up, you push
your feet against theirs, the person with more
mass pushes with more force therefore sending the
other person faster when they push off

8
Newtons 3rd law of motion
• For every action there is an opposite and equal
reaction
• One example of this is If a 3,000 pound car
crashes into a 5,000 car the 3,000 pound car is
more likely to have more damage

9
F M x a
• Force equals mass times acceleration
• If a driver pushes a car that ways 3,000 pounds
with a mass 0.5 then the force exerted is 1,500

10
M f/a
• Mass equals force divided by acceleration
• If an engine exerts 6.0 newtons of force, and
its placed on a cart that accelerates at 3.5,
then the mass would be 1.71

11
A f/m
• Acceleration equals force divided by mass
• A ball that is thrown with a force of 8 newtons,
if the mass is 4 then the acceleration of the
ball would be 2

12
W m x g
• Weight equals mass times gravity
• If a rock has a mass of 10, then and the amount
of gravity pulling on the rock is 2, then the
rock would way 20 poounds

13
M w/g
• Mass equals weight divided by gravity
• If a rock weighs 20 pounds, and the gravity
pulling on the rock is 2, then the mass would be
2.

14
G w/m
• Gravity equals weight divided by mass
• If a rock weighs 20 pounds, and the mass is 2
then the gravity pulling on it would be 2.