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34 Cards in this Set
- Front
- Back
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The resistence of an object to a change in the speed or the direction of its motion.
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Inertia
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The amount of matter in an object.
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Mass
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Any change in motion of an object.
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Acceleration
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An object at rest will remain at rest and object in motion will remain in motion unless acted upon by an outside force.
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Netwon's 1st Law of Motion
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A push or a pull.
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Force
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A force that resists motion between two objects in contact
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Friction
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The force that resists motion between two objects in contact.
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Gravity
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What is the rate of acceleration of gravity?
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9.8 meters per second/2
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Forces that are equal in size but opposite in direction.
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Balance Forces
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Forces that cause a change in the motion of an object.
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Unbalanaced forces
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Anything that has mass and takes up space.
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Matter
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1 Netwon = 1 Kg mass X 1 Meter/sec2.
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Netwon
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F = M x A
Force = Mass x Acceleration |
Netwon's 2nd Law of Motion
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For every action there is an equal and opposite reaction.
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Netwon's 3rd Law of Motion
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How many grams in a Kilogram?
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1000
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What would happen to an object's acceleration if the forces applied to it increase?
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It accelerates
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Why is it difficult to run on ice?
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Less Friction
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How are acceleration, mass and inertia related?
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The more mass, therefore the more inertia, the harder it is to accelerate that mass.
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The force that pushes on something.
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Action force
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The force that pushes back.
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Reaction force
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The total of all the forces action on an object.
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Net force
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Any force that keeps an object moving in a circle.
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Centipetal force
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What is the formula for Acceleration?
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Acceleration = Force/Mass
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What is the formula for Mass?
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Mass = Force/Acceleration
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What is the change in position over time?
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Motion
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The resistance of an object to a change in speed or direction is called?
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Newton's First law of motion
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The change in velocity over time?
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Acceleration
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What is Momentum?
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Momentum = Mass times Velocity or
P=MV |
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A collision is a situation in which two objects in close contact transfer?
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Energy and Momentum
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When you push on a door, the door pushes back with an equal and opposite force. These two forces are known as?
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Action / Reaction force pairs
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The momentum of an object is the product of its...?
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Mass and Velocity
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What is the unit of force?
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Newton
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What is the unit for mass?
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Kg
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What is the unit for acceleration?
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m/s/s
Mass divided by seconds squared |
