Term
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Definition
| A push or a pull. Always acts in the same direction |
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Term
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Definition
| Forces that are equal in size, and in opposite direction, also do not cause a change in motion on an object |
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Term
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Definition
| Causes a change in motion of an object |
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Term
| Give two ways that unbalanced forces can change the motion of an object |
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Definition
- Acts on an object at rest therefore it causes the object to move
- Acts on an object in motion therefore the motion of the object will change
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Term
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Definition
| The combination of all forces acting on an object |
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Term
| What are some forces in nature? |
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Definition
- Wind
- Gravity
- Air
- Tides
- Waves
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Term
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Definition
- Gravity is a force of attraction between all objects in the universe
- On earth all objects "fall" or are pulled toward the center of the earth's mass
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Term
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Definition
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Term
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Definition
| A force that opposes motion between two surfaces |
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Term
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Definition
| Friction occurs because the surface of an object is "rough" |
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Term
| What are the two types of friction? |
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Definition
- Static Friction
- Kinetic Friction
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Term
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Definition
| The friction between stationary surfaces |
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Term
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Definition
| The force that opposes the movement of two surfaces that are in contact and sliding over each other |
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Term
| Static Friction and Kinetic friction- Which is greater? |
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Definition
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Term
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Definition
| The force applied to the object equals the force of fluid friction. Terminal velocity is a balanced force |
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Term
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Definition
| Change shape of object to reduce fluid fricton |
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Term
| What are ways to overcome friction? |
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Definition
- Streamlining
- Lubricants (gas, liquid, solid) oil, water, silver, butter, ice
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Term
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Definition
| An object change in position (w.r.t) with respect to a stationary reference point |
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Term
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Definition
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Term
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Definition
N, E, S, W (up and down)
Toward a reference object |
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Term
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Definition
| The actual route you travel (all twists, turns) Indirect route |
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Term
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Definition
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Term
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Definition
How fast an object moves over a over distance and time
S = D/T |
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Term
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Definition
| An object covers equal distances in equal amounts of time |
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Term
| Example of constant speed |
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Definition
| Cruise control, terminal velocity |
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Term
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Definition
| The distance traveled by an object divided by the time the object takes to travel that distance |
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Term
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Definition
| Distance traveled over a very short interval |
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Term
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Definition
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Term
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Definition
The rate at which velocity changes over time
A = D/T2 |
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Term
| How is acceleration calculated? |
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Definition
Acceleration = Final Veocity-Initial Velocity/Time
A = Vf-Vi/T |
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