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| A force that opposes motion it can be measured with a spring scale it should be recorded in Newtons with amount and direction |
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| Acts against an object that slides over a surface. (Solid surfaces rubbing against each other) |
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| acts on only objects that are not moving |
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| Acts on a rolling object uses ball bearings and wheels (Object rolling over surface) |
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| a force that acts against motion a fluid can be gas or liquid (When object moves through liquid) |
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| Push or pull exerted on an object |
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| Non zero net force which changes an objects motion |
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| Newton's First Law of Motion |
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| If an object is at rest it stays at rest unless another object acts upon it if an object is moving it stays moving unless an object acts upon it |
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| Overall forces of an object when the individual forces are added together |
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| Measurement used for measuring force |
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| tendency of an object to resist any change in its motion |
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| amount of matter in an object |
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| changing direction slowing down speeding up |
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| The force that holds us to the earth |
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| Equal forces acting on each other in different directions |
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| Newton's Second Law of Motion |
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| The acceleration of an object depends on its mass and the amount of force applied to it |
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| When only one force is acting on an object and that is gravity |
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| Law of Universal Gravitation |
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| The force of gravity that acts upon all objects in the universe |
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| The maximum velocity that a faling object can reach |
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| Newtons Third Law of Motion |
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| When one object exerts a force on a second object the second object exerts a force back on the first |
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| States the total momentum of an object doesn't change it is the same before and after the interaction |
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| The force that makes an object move in a circle |
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*Essay*
What forces are acting upon you when you slide down a water slide? What type of friction is present? If the water slide were dry would the frictional forces be different? |
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*Essay*
Explain how force mass and acceleration are related. Which of Newton's law explains this? Explain how the other 2 change if 1 is increased. Be specific. |
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*Essay*
Explain the difference between balanced and unbalanced forces. Include what net force is and how it is related to balanced and unbalanced forces. Give one example of each type of force. |
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