Free Fall
Kinematics
Motion Graphs
Velocity & Acceleration
Random
100
Free fall is the condition in which an object is under the influence of only ________.
Gravity
100
"Vf" stands for what? And has units of what?
Final Velocity, m/s
100
The slope on a position vs. time graph is equal to what?
Velocity
100
What is Velocity? (In relation to position)
The rate of change of position
100
What is displacement? (In relation to position)
The change in position
200
What is the rate of acceleration on Earth?
9.81 m/s2
200
"a" stands for what? and has units of what?
Acceleration, m/s2
200
The slope on a velocity vs. time graph is equal to what?
Acceleration
200
Negative acceleration means an object is moving with ______ velocity.
Decreasing
200
What is the speed of an object at rest?
0 m/s
300
When an object is in free fall, the acceleration it experiences is __________.
9.81 m/s2
300
"t" stands for what? and has units of what?
Time, seconds
300
What does a horizontal line represent on a velocity vs time graph? (What does it say about velocity?)
Constant Velocity
300
Acceleration is the rate of change of _________.
Velocity
300
How is displacement calculated?
Final position - Initial position
400
How long has a rock been failing if it has a velocity of 65 m/s?
6.63s
400
"Vi" stands for what? and has units of what?
Initial Velocity, m/s
400
The area under a velocity vs. time graph represents what?
Displacement
400
A giraffe is running with a constant velocity of 20 m/s. What is the giraffe's acceleration?
0 m/s2
400
A bicycle is moving with a uniform speed of 1 m/s along a straight path. What is the distance covered in 3.0 minutes?
180m
500
Which would fall with greater acceleration in the absence of air resistance? A rock, or a feather?
Neither, they would accelerate at the same rate
500
Determine the distance covered of a plane that is uniformly accelerated from 66m/s to 88m/s in 12s.
d=(1/2)(66+88)(12)=924m
500
A horizontal line represents _______ velocity on a position vs. time graph.
zero
500
What is the difference between speed and velocity?
Speed is a scalar. Velocity is a vector and includes a direction.
500
If a dog runs to the store 500 meters away, and returns home later. What is the dog's displacement? What distance did the dog cover?
Displacement=0m, Distance covered=1000m
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