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22 Cards in this Set
- Front
- Back
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What is acceleration?
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It is the rate of change of speed or velocity.
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What is direction?
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It is the course along which an object moves.
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What is displacement?
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It is the length of the shortest path from start to finish, coupled with direction.
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What is distance?
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It is the length of the total path taken.
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What is kinematics?
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It is the study and description of motion.
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What is magnitude?
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It is a property of an object's size.
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What is a qualitative description?
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It is a description done solely in words.
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What is a quantitative description?
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It is a description given in numbers.
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What is a reference point?
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It is the starting point for describing any motion.
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What is a scalar?
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A scalar is a quantity that has magnitude but no direction.
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What is SI?
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It it the International System of Units.
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What is speed?
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It is the rate of change of distance.
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What is a vector?
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It is a quantity that has both magnitude and direction.
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What is velocity?
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It is an object's displacement, divided by the time it takes to move that amount.
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What is air resistance?
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It is a form of friction between a moving solid object and air that causes the object to slow down.
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What is free fall?
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It is motion in which the only force acting is the force of gravity.
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What is gravity?
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It is the natural force of attraction Earth exerts on objects at or near its surface, which tends to draw them towards Earth's center.
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What is a vacuum?
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It is space in which all air has been removed.
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What is a projectile?
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It is an object that can be fired or launched into the air but cannot propel itself through the air.
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What is projectile motion?
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It is the motion of an object in which it moves both vertically and horizontally at the same time.
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What is a resultant displacement?
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It is the shortest path from start to finish.
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What is a resultant vector.
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It is the sum of two or more vectors.
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