Vocab Section 1
A measure of how quickly something changes in relation to another. (Rise/Run)
Slope
The distance an object moves in a certain amount of time. S=D/T (Distance/Time)
Speed
How quickly an object speeds up, slows down, or changes direction.
Acceleration
A car travels 120 meters in 30 seconds. What is the car's speed?
4 m/s
A student walks 250 meters north in 50 seconds. What is the student’s velocity?
5 m/s north
A value that falls directly in the middle of the other recorded values.
Average
Resistance to change in motion.
Inertia
Extracted from, drawn out of, or obtained from a source.
A cyclist travels 500 meters east in 20 seconds and then travels 300 meters west in 30 seconds. What is the displacement?
200 meters east
A skateboarder increases speed from 10 m/s to 30 m/s in 5 seconds. What is the skateboarder’s acceleration?
4 m/s squared
A symbol for a value that is not known yet. It can change or have different values.
Variable
The speed at which an object is moving in a certain direction.
Velocity
A runner travels 600 meters north in 20 seconds, then turns around and travels 200 meters south in 20 seconds. What is the runner’s velocity?
10 m/s north
A bus increases its speed from 15 m/s to 45 m/s in 5 seconds. What is the bus’s acceleration?
6 m/s squared
A hiker walks 400 meters north in 20 seconds, then walks 200 meters south in 20 seconds. What is the hiker's velocity?
5 m/s north
The total distance traveled divided by the total time taken.
Average Speed
A measure of the force of gravity on an object.
Weight
A rocket increases its velocity from 24 m/s to 84 m/s in 10 seconds. What is the rocket's acceleration?
6 m/s squared
A plane increases its speed from 30 m/s to 150 m/s in 15 seconds. What is its acceleration?
8 m/s squared
A bus travels 240 meters east in 20 seconds, then travels 60 meters west in 10 seconds. What is the bus's velocity?
6 m/s east
F= M x A or Force = Mass x Acceleration
Net Force Equation
Your speed at that exact moment.
Instantaneous Speed
What is the equation for Acceleration?
Final Velocity minus Initial Velocity divided by Time or vf - vi / t
A boat travels 480 meters east in 20 seconds, then travels 120 meters west in 10 seconds. What is the boat's velocity?
12 m/s east
A race car decreases its velocity from 78 m/s to 18 m/s in 6 seconds. What is the car's acceleration?
-10 m/s squared