Term
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Definition
| friction, gravity, air resistance |
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Term
| What is the Law of Inertia? |
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Definition
An object tends to stay in motion or at rest unless outside force interferences.
ex. seatbelt and a car, car stops suddenly, body keeps moving forward, seatbelt (outside force) stops you |
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Term
| What is a Balanced Force? |
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Definition
An object stays in place (pencil on desk)
or an object in motion stays in motion forever (objects in space, planets) |
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Term
| What are Unbalanced Forces? |
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Definition
They cause a change in position or motion
Always results in motion
ex. in an arm wrestling contest, one person is starting to win or gain advantage |
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Term
| What does Acceleration depend on? |
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Definition
| Force and mass
F= MA (Force equals mass x acceleration)
The amount of force is = to amount of acceleration
The greater the force exerted on an object, the more it will accelerate
ex. the harder you kick a ball, the father and faster, it will travel |
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Term
| What is Newton's First Law? |
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Definition
| An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside unbalanced force |
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Term
| What is Newton's Second Law? |
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Definition
| The greater the mass of the object, the greater the force is required to get the object to accelerate |
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Term
| What is Newton's Third Law? |
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Definition
| For every action, there is an equal and opposite reaction. |
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Term
| What is the difference between Unbalanced and balanced forces? |
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Definition
Unbalanced forces make an object move
Balanced forces make an object stay at rest. |
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Term
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Definition
an object that takes up space
A heavy object requires more force to set in motion |
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Term
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Definition
| Two forces on earth that act on objects |
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Term
| Law of conservation of motion |
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Definition
| You can't lose momentum, it has to go somewhere |
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Term
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Definition
| When 2 equal forces act in opposing direction and object is not moving, the net force is zero |
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Term
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Definition
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Term
| What does amount of momentum depend on? |
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Definition
| Mass (how much stuff) and velocity (how fast it is moving) momentum = m*v |
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