Download Newton`s Laws

 Isaac Newton was born on 4, January, 1643 in
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Lincolnshire, England
He lived to the age of 84
He died on 31, march, 1727
Some of his greatest work such as the Binomial
Theorem ended up being the basis of calculus
He worked with prisms to find the entire spectrum of
light in white light.
 Was a astronomer and built an advanced telescope for
the time.
 He had a big part to play with Isaac Newton’s interest
with the composition of white light.
 I. Every object in a state of uniform motion tends to
remain in that state of motion unless an external force
is applied to it. If there is no friction on an object, it
will stay in motion until something stops it by force.
 II. The relationship between an object's mass m, its
acceleration a, and the applied force F is F = ma.
Acceleration and force are vectors (as indicated by
their symbols being displayed in slant bold font); in
this law the direction of the force vector is the same as
the direction of the acceleration vector. Force is equal
to the mass times the acceleration of an object.
 III. For every action there is an equal and opposite
reaction. Every action has a consequence.
 Space debris follows Newton’s fist law
because there is no fiction to slow the object
another force acts upon it.
 This picture of a dog pulling the sled shows
the forces acting on the object while in motion
when being pulled.
 The balloon shows how when the balloon is
propelled up the same amount of force is
on the balloon is pushing it in the opposite
direction.
 Newton's First Law of Motion, Part 1
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Checker Challenge Objective: To demonstrate the first part of Newton's
first law of motion.
To make observations and record data
Context: Small cooperative groups
Materials: 5 checkers, 1 ruler, lab sheet
Procedure:
1. Stack the checkers to make a tower. 2. Predict what will happen to the
checkers when you hit only the bottom checker with a ruler. Record your
prediction on the lab sheet.
3. Lay the ruler flat on the table. Swing the ruler sideways quickly so that you
only hit the bottom checker. Record your results on the lab sheet.
4. Stack the checkers again. Try removing the checkers one by one without
knocking over the tower.
Results: As the ruler hits the bottom checker, the checker should slide out of
the way without knocking over the rest of the tower. The remaining checkers
are not acted upon by the force of the ruler, so they remain at rest.
 Drop a piece of paper and a book and see which one
hits the ground first.
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Objectives
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Students will
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identify action-reaction force pairs;
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understand applications of Newton's Third Law of Motion.
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Motivation for Learning
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Discrepant Event - Soda Bottle Rocket
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Materials 2-liter plastic soda bottle, empty
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Cork to fit bottle
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200 ml vinegar
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3 tablespoons baking soda
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3 sheets aluminum foil, each 3 cm x 10 cm
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Safety goggles
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Procedure
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*Take care that the bottle opening does not face in the direction of any people or breakable objects during this demonstration. Wear goggles throughout*
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Pour 200 ml vinegar into the plastic soda bottle. Place a cork in the mouth of the container.
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Make a v-shaped envelope out of the sheets of foil, folding one sheet over the top of the other to make the envelope thicker. This envelope should be small enough to fit
through the mouth of the bottle.
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Fill the envelope with 3 tablespoons of baking soda.
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Remove the cork from the soda bottle, taking care not to spill the vinegar. Insert the aluminum envelope through the mouth of the bottle, being careful not to mix the vinegar
and baking soda.
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Quickly reseal the bottle.
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Standing to the side, rapidly rotate the bottle so that the baking soda mixes with the vinegar. Stand back and observe.
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The cork should shoot from the mouth of the bottle forward, in turn propelling the bottle backwards. The action is the cork, the reaction is the bottle movement.