Motion Vocabulary
The ratio of the distance an object moves to the amount of time needed to travel the distance.
What is speed?
Of the following, the one that would be most practical for measuring the length of your finger. kilometers miles centimeters feet
What is centimeters?
This is measured by your car's speedometer.
What is instantaneous speed?
Acceleration is described as changes in ________, changes in ___________, or both.
What are speed and direction?
Motion of a car if the line on the distance-time graph is horizontal.
What is not moving?
The speed at which an object is traveling and the direction it is traveling.
What is velocity?
Nikki's total displacement if he drives 4 miles east from his house to pick up his friend Dave, and then drive 2 more miles east to school.
What is 6 miles?
The speed of a train car if its distance-time graph indicates that it traveled 200 meters in 25 seconds.
What is 8 meters per second?
The acceleration of a bus moving at a constant speed of 50 miles per hour.
What is zero?
Motion of a car if the line on the distance-time graph is a straight continuous line going up.
What is moving at constant speed?
The rate at which an object is moving at a given time.
What is instantaneous speed?
Johnny's total displacement if he walks 2 miles to the school, and then takes the short cut back home that is only 1 mile.
What is zero?
The formula for calculating average acceleration.
What is the change in velocity divided by the total time?
Motion of a car if the line on a distance-time graph is a continuous straight line going down.
What is moving at constant speed?
The direction from the starting point and the length of a straight line from the starting point to the ending point.
What is displacement?
Monique's total displacement if she walks 2 blocks east to her friend Carla's house, then 4 blocks west (past her own house) to her friend Kate's house.
What is 2 blocks west?
A train's average speed if it travels 190 kilometers in 3 hours, and then 120 kilometers in 2 hours.
(In m/s)
What is 17.2 meters per second?
The acceleration of a car traveling at 10 meters per second that takes 20 seconds to stop.
What is -0.5 meters per second squared?
Motion of a car if the line on a distance-time graph is exponentially curving upward.
What is accelerating?
The rate at which velocity changes.
What is acceleration?
Johnny's total displacement if he walks 2000 meters to the school, and then after school walks 500 meters north to practice.
What is 2061.6 meters?
A jogger's average velocity if she jogs 4 kilometers north in 32 minutes, then 2 kilometers south in 16 minutes, and finally 2 kilometer south in 22 minutes.
(In m/s)
What is 0 meters per second?
The initial velocity when acceleration is 8.9 m/s2. For 100 meters in length and for 3.0 seconds.
What is 19.98 m/s
Motion of a car if the line on a velocity-time graph is a continuous straight line down.
What is decelerating?