Vocabulary
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| Free Fall | downwards acceleration due to the force of gravity (-9.8m/s^2)
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| Mass | total matter (stuff) found within an object
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| Direction | can be positive (up, right, north, or east) or negative (down, left, south, or west)
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| Horizontal | right/east or left/west motion (x-axis)
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| Vertical | up/north or down/south motion (y-axis)
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| Components | two or more vectors (arrows)
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| Vector Addition | produces the resultant of a vector's components
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| Resultant | the sum of two or more vectors' components (displacement)
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| Displacement | an object's distance from its origin and its direction (a.k.a. position)
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| Origin | an object's starting point
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| Vector Diagram | model including a vector's components and resultant arrows
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| Plane | either the x- or y-axis
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| Parallel | vectors found within the same plane (1D), either both horizontal or both vertical
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| Perpendicular | vectors found in different planes (2D), one horizontal and the other vertical
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| Pythagorean Theorem | calculates the resultant of two perpendicular vectors (hypotenuse of a right triangle) a^2+b^2=c^2
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| Two-Dimensional Motion | objects moving both vertically (up/down) and horizontally (left/right)
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| Range | distance from where a projectile was launched to where it hits the ground
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| Projectile | object influenced only by gravity after it has been fired, thrown, launched, dropped, etc.
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| Height | vertical distance between the ground and a projectile's peak
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| Peak | highest point a projectile reaches above the ground
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| Air Resistance | drag force that is opposite of the direction a projectile moves through the air
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| Parabola | shape of an angled projectile's trajectory
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| Trajectory | path that a projectile travels through the air
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| Launch Angle | measured from the horizontal at the origin of a projectile's trajectory
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| Terminal Velocity | constant speed that a free falling object eventually reaches once the air resistance equals the force of gravity pulling it down
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| Scalar | has magnitude ONLY (ex: distance, speed, time, mass, etc.)
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| Vector | has magnitude AND direction (ex: position/displacement, velocity, acceleration, etc.)
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| Horizontal Projectile | object moving sideways while falling down
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| Distance | total change in an object's position
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| Vacuum | region of space without any air
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| Magnitude | size or amount (number)
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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john_bailey720
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