1.
9.8 m/s: if you drop an object, its speed will increase ______ every second
2.
9.8 m/s: you throw a ball straight up as it rises the ball slows down by _______ each second
3.
9.8 m/s: you throw a ball straight up as it falls, the ball's speed increases by _________ each second.
4.
9.8 m/s2: acceleration due to gravity (g)
5.
9.8 m/s2 downward: you throw a ball straight up the entire time the ball's acceleration is...
6.
45 degrees: when launching a projectile from level ground the angle that will result in max range is...
7.
90 degrees: to give a projectile max height launch it at an angle of...
8.
acceleration: change in velocity
9.
air resistance: frictional force air exerts on a moving object; acts opposite in direction to the object's motion
10.
complementary angles: _____________ ________ will result in the same range
11.
Component: One of the vectors, often mutually perpendicular, whose sum is resultant vector. Any resulant vector may be regarded as the combination of wo or more components.
12.
displacement: distance and direction of an object's change in position from the starting point
13.
down, vertical: because gravity pulls straight ______ it only affects the ____________ motion of a projectile.
14.
free fall: the vertical velocity of a projectile acts like an object in...
15.
free fall: when the only force acting on an object is gravity
16.
hang time: the total time the object is in the air
17.
initial velocity: throwing an object downward is just like dropping an object, only with _____ _________
18.
parabola: the curved path followed by a projectile under the influence of constant gravity only
19.
projectile: an object in free fall is know as a
20.
Projectiles: Any object that moves through the air or through space, acted on only by gravity (and air gravity resistance, if any).
21.
range: horizontal displacement
22.
Resolution: The process of resolving a vector into components. In optics, a measure of how well closely adjacent optical images are disinguished.
23.
Resultant: The vector sum of two or more component vectors.
24.
resultant: a vector that is the sum of two or more other vectors
25.
same: you throw a ball straight up it takes the ball the _______ amount of time to rise as to fall
26.
same rate: neglecting air resistance all objects fall at the _________ _______
27.
Satellite: An object that falls around earth or some other body rather than falling into it.
28.
scalar: magnitude only
29.
Scalar Quantity: A quantity in physics, such as mass, volume, and time, that can be completely specified by its magnitude, and has no direction.
30.
speed: you throw a ball straight up the ball returns to you hand with the same _____ it left with
31.
stays constant: the horizontal velocity of a projectile always...
32.
time: the only thing that can cross the line of the columns of horizontal and vertical is....
33.
upward, downward: when you throw an object up, it has _______ initial velocity and ______ acceleration
34.
Vector: An arrow whose length represents the magnitude of a quantity and whose direction represents the direction of the quantity.
35.
vector: a quantity that has magnitude and direction`
36.
Vector Quantity: A quantity in physics, such as force, that has both magnitude and direction.
37.
velocity: speed in a given direction
38.
zero: you throw a ball straight up when it reaches the top of its path the ball's speed is...
39.
zero: horizontal acceleration always because the ball is in free fall
40.
zero initial velocity: drop
