Motion and Design Vocabulary Words-4th grade
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| aerodynamic | able to move through the air with as little air resistance as possible
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| air resistance | the force of friction on a vehicle as it moves through the air
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| axle | a bar or shaft on which a wheel turns
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| constant | a condition that is not changed in a scientific experiment
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| drag | force that opposes the forward movement of a vehicle
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| dynamics | the part of physics tht deals with how things move and the forces tht change their motion
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| energy | the ability to do work or to make something happen
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| force | a push or pull
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| friction | force that resists movement between two objects that are touching
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| gravity | a force of attraction between any two masses.
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| gravity | the strength of this force is dependent on the mas of each object and their distance from each other
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| kinetic energy | energy associated with motion
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| mass | the amount of matter an object has
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| mode | the value occuring most frequently in a series of measurements
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| potential energy | stored energy that can be released to become other forms of energy
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| speed | a measure of how fast something is moving
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| tension | the force exerted by a stretched object, such as a spring
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| variable | an element in an experiment that can be changed
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| weight | a measurement of the force of gravity on an object
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| Laws of Motion | were formulated by Sir Isaac Newton and they describes how objects move in relation to the forces acting on them
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