Motion Vocabulary
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?
Three different ways an object can accelerate.
What is increasing speed, decreasing speed, or changing direction?
Nikki's total distance 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 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 with NO change in direction.
What is zero?
The formula for speed.
What is Speed= Distance divided by time?
A place or object used for comparison to determine if something is in motion.
What is a reference point?
The faster runner if Bo runs 4 miles in 1 hour, and Mo runs 2 miles in 20 minutes.
Who is Mo?
The formula for calculating acceleration.
What is the change in velocity divided by the total time?
The SI unit for acceleration.
What is meters/second squared or meters/second/second?
The length of the path between two points.
What is distance?
A house is stationary/in motion relative to the sun.
What is in motion?
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 takes 20 seconds to stop.
What is 0.5 meters per second squared or 0.5 meters/second/second?
Divide the total distance by the total time.
What is average speed?
True or False: An object can be moving and not moving AT THE SAME TIME.
What is TRUE?
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 race car that goes from a pace car speed of 400000 kilometers per second to full speed of 900000 kilometers per second in 10 seconds.
What is 50000 kilometers per second squared?
A car is accelerating at a rate of -15m/s squared, the car is speeding up or slowing down.
What is slowing down?