Distance & Displacement
The shortest length between point A (start) and point B (finish)
Displacement
Which of the following does not factor in direction: speed or velocity
speed
The value of acceleration due to gravity
-9.8 m/s/s
Speed with direction
Velocity
Total distance / total time
Average speed
What distance has a person travelled if the biked at a rate of 2 m/s for 10 seconds.
20 meters
What is the instantaneous speed of a car after 5 seconds of accelerating at a rate of 5 m/s/s from rest
25 m/s
A car slows from 10 m/s to 5 m/s in 5 seconds. What is the value of the cars acceleration?
-1m/s/s
The total length travelled by an object
Distance
If there is no air resistance, which will hit the ground first a 5 gram bouncy ball or a 20 gram basketball?
Both at the same time
A student drives 8 miles North from her home to school, 11 miles South after school to get food, and 2 miles further South to go to work. What is her displacement?
5 miles South of her original position
What is the average speed of a car that travelled 100 meters in 8 seconds and another 50 meters in 3 seconds.
13.6 m/s (14 m/s acceptable)
A car goes from 0 m/s to 50 m/s in 5 seconds. What is the acceleration of the car.
10 m/s/s
Change in velocity with respect to time
Acceleration
What direction does acceleration act in when a ball is thrown upward at a velocity of 18 m/s?
Downward
How far has a car travelled after 60 seconds of traveling at a rate of 2 m/s
120 meters
A coin is falling from a bridge. What is the coins velocity after 7 seconds?
68.6 m/s (69 m/s accepted)
A car goes from 5 m/s to 15 m/s in 2 seconds. How fast is the car accelerating?
5 m/s/s
The distance an object travels in a given amount of time (direction not factored in)
Speed
When a ball gets thrown out of a car that is moving forward, does the ball move forward or backwards (frame of reference: outside of the car watching the car drive by)
Forward
How far has a ball fallen from the top of a building if it has been falling for 3 seconds.
44.1 or 44 meters
A rock is falling from a bridge for 12 seconds before hitting the ground. What is the rock's velocity as it hits the ground?
117.6 m/s (118 acceptable)
A coin was dropped from an 80 m high building. What will the coin's acceleration be whenever it hits the ground?
-9.8 m/s/s
A vantage point that is used to evaluate motion
Frame of reference
If a car is changing direction, which changes as well: velocity or acceleration?
Both