Motion Vocabulary
Distance an object moves divided by 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?
Distance/Time
What is 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 East?
The speed of a train car if it travels 200 meters in 25 seconds.
What is 8 meters per second?
The acceleration of a bus moving at a constant speed of 50 m/s.
What is zero?
Motion of a car if the line on the distance-time graph is a straight line slanting up.
What is moving away from the origin at a constant speed?
The rate at which an object is moving at an EXACT point in time.
What is instantaneous speed?
A system of objects that are not moving with respect to an object that is moving.
What is a frame of reference?
The faster runner if Bo runs 4 km in 60 minutes, and Mo runs 2 km in 20 minutes.
Who is Mo?
The formula for calculating acceleration.
A = (Vf - Vi)/T
Motion of a car if the line on a distance-time graph is a straight line slanting down.
What is moving toward the origin at a 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.
What is 62 kilometers per hour?
The acceleration of a car traveling at 10 meters per second that loses a wheel and takes 20 seconds to stop.
What is -0.5 m/s2?
Motion of a car if the line on a distance-time graph is curving upward.
What is accelerating?
The rate at which velocity changes.
What is acceleration?
Johnny's total displacement if he walks 2 miles from home to the school, and then takes the short cut back home that is only 1 mile.
What is zero?
A jogger's average speed if she jogs 4 kilometers in 32 minutes, then 2 kilometers in 22 minutes, and finally 1 kilometer in 16 minutes.
What is 0.1 kilometers per minute?
The acceleration of a rocket ship that goes from a speed of 400000 kilometers per second to full speed of 900000 kilometers per second in 10 seconds.
What is 50000 km/s2?
Motion of a car if the line on a velocity-time graph is a straight line slanting down.
What is decelerating?