may the force be with you!
DESCRIPTION
May The Force Be With You!. Motion: is a change in position, measured by distance and time. . Force. Any push or pull on an object. Starts, stops, or changes the direction and speed of an object. Gravity . The Force of attraction between any two objects in the universe. - PowerPoint PPT PresentationTRANSCRIPT
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May The Force Be With You!
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Motion: is a change in
position, measured by distance and
time.
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•Starts, stops, or changes the direction and speed of an object.
Force•Any push or pull on an object.
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Gravity The Force of attraction between any two objects in the universe.
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The force which pulls all objects towards the center of the Earth.
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CentripetalThe Force that pulls objects toward the center keeping them in a circular motion.
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Buoyant Force
An upward force exerted by a fluid.
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–Lift–Drag –Thrust
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Friction Friction is a force that causes or
stops motion when two surfaces rub against each other.
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•Static friction – friction force that acts on objects that are not moving.
•Sliding friction – friction force that opposes the direction of motion of an object as it slides over a surface.
•Rolling friction - friction force that acts on rolling objects.
•Fluid friction – friction force that opposes the motion of an object through a fluid.
Types of friction:
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Static Friction
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Sliding Friction
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Fluid Friction
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Rolling Friction
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•Forces occur in pairs•Forces are either:
Balanced Unbalanced
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Balanced Forces• Do not cause a change in motion
• They are equal in size and opposite in direction.
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Unbalanced Forces• Always cause a change in motion
• They are not equal and are opposite in direction.
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BALANCED FORCES
UNBALANCED FORCES
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•That’s it for today …
May the Force be with you!