Download - Sabareesh p s ppt
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POWER POINT PRESENTATION
Presented by SABAREESH.P.S
Physical Science Reg. No: 1336008
JBMCTE
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Newton’s Contributions• Calculus• Light is composed of
rainbow colors• Reflecting Telescope• Laws of Motion• Theory of Gravitation
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Newton’s First Law(law of inertia)
An object at rest tends to stay at rest and an object in motion tends to stay
in motion unless acted upon by an unbalanced force.
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Balanced Force
Equal forces in opposite directions produce no motion
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Unbalanced Forces
Unequal opposing forces produce an unbalanced force
causing motion
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If objects in motion tend to stay in motion, why don’t moving objects keep moving
forever?
Things don’t keep moving forever because there’s almost always an unbalanced force
acting upon them.
A book sliding across a table slows down and stops because of the force of friction.
If you throw a ball upwards it will eventually slow down and fall because of the force of gravity.
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Inertia
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Newton’s First Law (law of inertia)
• MASS is the measure of the amount of matter in an object.
• It is measured in Kilograms
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Newton’s First Law (law of inertia)
• INERTIA is a property of an object that describes how ______________________ the motion of the object
• more _____ means more ____
much it will resist change to
mass inertia
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1st Law
• Unless acted upon by an unbalanced force, this golf ball would sit on the tee forever.
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• : initial friction when moving an object
What is this unbalanced force that What is this unbalanced force that acts on an object in motion?acts on an object in motion?
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1st Law
• Once airborne, unless acted on by an unbalanced force (gravity and air – fluid friction) it would never stop!
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