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Forces! (Types of forces (Friction force is a force that is applied to the…
Forces!
Types of forces
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Gravity Force is the force in which a large object attracts another large object. On earth, Gravitys = 9.8m/s/s
Normal Force is the force that is applied to on object if its still (eg a box exerts a force on the ground and the ground exerts the same force, therefore the box stays still.
Air Resistance is when an object travels through the air and the amount of resistance the air applies to it (this is basically the friction of the air)
Tension Forces are forces such as a force with a rope or a string and the amount of strain put on the rope or string.
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Friction force is a force that is applied to the object by the ground when the object is dragged against the ground.
Static Friction is the amount of resistance the ground has against the box when the box is motionless, and you are giving it motion by pushing pulling etc. This is a lot more than than Sliding Friction because it takes more energy to get it started but less energy to maintain that momentum.
Sliding Friction is the amount of resistance the ground has against the box when the box is already in motion This is a lot less than the Static Friction because it takes more energy to get it started but less energy to maintain that momentum.
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Terms and Concepts
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Force
a push or pull on an object that is capable of accelerating an object resulting from that objects interaction with another object.
Newtons Law of Motion
First Law
This law is often know as the law of inertia. An object at rest stays at rest and an object in motion stays in motion unless acted upon by another force.
Second Law
The second law does have a explanation in words but it is more clearly explained through the equation.
Net Force= Mass x Acceleration
Third Law
Newton third Law "for every action there is an equal and opposite reaction" this means that for every action (eg, dropping a ball) that when the ball hits the ground there is the same amount of force exerted on the ground as on the ball, which causes it to bounce.
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Free Body Diagrams
Free body Diagrams are types of diagram to display a object in motion. 