Term
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Definition
| motion in which all points of an object are moving in the same magnitude, direction, and velocity |
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Term
| what are the 2 components of a vector |
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Definition
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Term
| is volume a vector or scalar measurement? |
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Definition
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Term
| is mass a vector or scalar measurement |
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Definition
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Term
| what is the one component of a scalar measurement |
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Definition
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Term
| how to represent position? |
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Definition
| with coordinates or distance |
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Term
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Definition
| length of a path that connects two points |
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Term
| is travel distance vector or scalar? |
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Definition
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Term
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Definition
| as the crow flies distance from a to b |
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Term
| is displacement vector or scalar? |
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Definition
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Term
| is speed a vector or scalar? |
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Definition
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Term
| is velocity vector or scalar? |
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Definition
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Term
| in simplified projectile motion is there air? |
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Definition
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Term
| in simplified projectile motion what is the only acceleration? |
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Definition
| acceleration due to gravity |
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Term
| in simplified projectile motion, describe the horizontal velocity |
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Definition
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Term
| in simplified projectile motion, describe the vertical acceleration |
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Definition
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Term
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Definition
| time when the object leaves the support surface |
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Term
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Definition
| horizontal + vertical velocity at takeoff |
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Term
| define the takeoff or release angle |
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Definition
| the angle of the takeoff with respect to the horizon |
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Term
| what is the path of the travel of projectile motion? |
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Definition
| a second order paranomial |
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Term
| what is another name for takeoff height |
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Definition
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Term
| what is the maximum height of flight |
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Definition
| the highest y value, highest point |
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Term
| what is the touchdown height? |
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Definition
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Term
| define flight distance or range of flight |
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Definition
| horizontal distance between takeoff point and landing point |
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Term
| what is another term for takeoff velocity |
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Definition
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Term
| what is another term for takeoff angle |
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Definition
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Term
| describe acceleratino for instantaneous vertical velocity |
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Definition
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Term
| describe acceleration for an instantaneous horizontal position |
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Definition
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Term
| describe velocity for an instantaneous horizontal position |
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Definition
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Term
| what is the instantaneous horizontal acceleration? |
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Definition
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Term
| in projectile motion, what is the vertical velocity at the highest point? |
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Definition
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Term
| when does optimal takeoff angle occur? |
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Definition
| when takeoff and landing heights are the same |
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Term
| what is another name for optimal takeoff angle |
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Definition
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Term
| which takeoff angle will give the maximum distance in projectile motion when velocity is constant and takeoff and landing heights are equal |
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Definition
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Term
| what is the formula to find maximum vertical position (ymax) in a projectile motion? |
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Definition
| y_max = y+0 + ((V_y0)^2)/2g |
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Term
| is there air resistance in human movements? |
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Definition
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Term
| is there air resistance in the horizontal direction of human movements |
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Definition
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Term
| is there air resistance in the vertical direction of human movements? |
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Definition
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Term
| what is the flight phase of running? |
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Definition
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Term
| what are 4 ways to measure linear kinematics? |
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Definition
| videographic analysis, speed trap, radar speed gun, accelerometer |
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Term
| how does videographic analysis work? |
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Definition
| you measure position at a known point of a known time. You calculate the linear velocity and acceleration of the known point in known directions |
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Term
| what is an advantage of videographic analysis for linear kinematic measuring |
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Definition
| you can determine the linear kinematics of multiple known points |
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Term
| what is a disadvantage of measuring linear kinematics with videographic analysis |
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Definition
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Term
| how does a speed trap work? |
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Definition
| it measures the time the subject passes each gate: known distance/measured time = speed |
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Term
| how can you calculate instantaneous speeds using a speed trap? |
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Definition
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Term
| what is an advantage of a speed trap? |
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Definition
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Term
| what is a disadvantage of a speed trap? |
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Definition
| you don't know the speed at all points |
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Term
| what is a necessary condition of a speed trap? |
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Definition
| you have to make a time 0 where the subject has 0 speed |
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Term
| how does a radar speed gun work? |
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Definition
| amount of radar signals returned changes as the object moves |
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Term
| how does release height affect optimal release angle? |
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Definition
| as height increases, optimal release angle decreases |
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