Term
| Leaning Tower of Pisa Experiment |
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Definition
Experiment: Dropping objects of various weights from the top of the tower.
Result: Except for small effect of air resistance; objects of various weights fell at the same time and hit the ground at the same time.
Conclusion: Weight does not have any effect on falling objects. |
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| Inclined Plane Experiment 1 |
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Definition
Hypothesis: If there isn't any interference with a moving object, it will keep moving in a straight line forever.
Experiment: If the slope is level, does the speed change?
Result: Slope up, the speed decreases. Slope down, the speed increases.
Conclusion: Level slop, the ball will not speed up or slow down, unless friction acted on the ball. |
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Term
| Inclined Plane Experiment 2 |
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Definition
Experiment: Rolling balls on facing inclined planes.
Result: The height on the other side was about the initial height it started from.
Conclusion: The less steep the slope, the further the ball will go, but it will maintain it's original height. |
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Term
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Definition
Is a property of an object to resist changes in its motion.
Mass is a measure of inertia. |
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Definition
- Discovered three laws of motion.
- Discovered law of gravity.
- Discoveries in optics.
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Definition
Every object in a state of motion, tends to stay in motion, unless acted upon by an outside force. An object at rest tends to stay at rest.
Law of Inertia |
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Definition
- Weight
- Support force
- Tension
- Friction
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Definition
| The same as the gravitational force acting on an object. |
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Definition
| The force that a surface exerts on an object resting on it. |
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Definition
| The force in a rope or a string when something hangs from the rope or string, streches it. |
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Definition
| The force between two surfaces that opposes motion. |
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Definition
| Has both a magnitide (size) and direction. |
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Term
| Examples of vector quantities: |
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Definition
| Q-force, velocity and acceleration. |
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| (N) Newton is approximately 1/4 of a pound |
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1) Is the total force.
2) The total takes into account both magnitude and direction. |
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Definition
1) Car trying to turn a corner on slippery ice.
2) Flipping a coin while on a high-speed jet moving with a constant velocity.
3) Planets' motion if the sun's gravity turned off. |
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| If the net force is zero, an object's motion or non-motion will |
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Definition
| make a new path, tangent to new path. |
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Definition
| Is an application of Newton's first law of motion. |
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Term
| Mechanical equilibrium occurs when... |
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Definition
| the net force acting on an object is zero. |
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| Mechanical equilibrium, mathmatically stated: |
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Definition
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| Remember! With mechanical equilibrium: |
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Definition
| when the net force equals zero, the object's motion remains constant in both. |
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