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25 Cards in this Set
- Front
- Back
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A push or pull. |
Force |
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Car engines use ____________% of their total power to overcome the friction with the car's moving parts. |
20 |
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The fricton from air molecules hitting an object as the object moves through the air. |
Air Resistance |
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Natural attraction betwwen only two objects. |
Gravity |
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A force that slows down the movement of one surface of another. |
Friction |
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Gliding over the surface of water. |
Hydroplaning |
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Equal forces acting in oppisite directions. |
Balanced Forces |
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Balanced forces keep_____________ and ________________ from collapsing. |
Bridges and Buildings |
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An object at rest/in motion stays at rest/in motion untill an outside force acts on it. |
Newton's first law of motion |
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When a force acts on an objects it will start to move slow down or change directions. |
Newton's second law of motion |
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Mass X Acceleration= |
Force |
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Every action has an equal and oppisite reaction. |
Newton's third law of motion
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The resistance of an object to change in its state of motion. |
Inertia |
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A shape like that pulls a rotating object away from what it is rotating away. |
Airfoil |
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A force that pulls a rotating object away from what it is rotating around. |
Centrufugal Force |
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Air that creates friction, this can slow down anything. |
Drag |
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What are some examples of drag. |
Butterflies, planes, people, etc |
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This stabilizes and keeps a race car in contact with the track at high speeds. |
Down force |
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_________________________are on space shuttles to protect them. The tiles can with stand tempuratures as high as 2500 degrees fahrenheit. |
Aluminum Tiles |
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_______________are used for television signals, cell phone signals, weather predictionsand space observations. |
Space shuttles |
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Any object that orbits around another objects. |
Satellite |
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Curved on the top and flat on the bottom example: Airplane wing |
Streamline |
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There is ___________________moving air and _______ pressure on top of the wing. |
Faster and Less |
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There is __________air and _________ pressure on the bottom or flat side of the wing. |
Slower and More |
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The _______________pressure on the bottom of the wing pushes the wing up.ed |
Increased |
