Definitions
A quantity that is defined by magnitude only.
What is a scalar?
A segment of a position vs time graph of an object that is not moving.
What is a horizontal line?
The displacement of a person who walks 50 m north and then turns around and walks 30 m south.
What is 20 m north?
The speed of a bicyclist in a time trial who starts the race by accelerating at 15 m/s2 for 20 s.
What is 300 m/s?
This type of quantity has both magnitude and direction.
What is a vector?
A segment of a velocity vs time plot that shows constant velocity.
What is a horizontal line?
The velocity of an object that moves 50 m in 10 s.
What is +5m/s?
The amount of time required for a train traveling at 26.4 m/s to decrease its velocity to 9.72 m/s, at an average acceleration of –1.50 m/s2.
What is 11.12 s?
A vector quantity that refers to the overall change in an object's position.
What is Displacement?
A segment of a position vs time graph that represents an object moving at a constant velocity.
What is a straight line?
The acceleration of a car that goes from 40 m/s to 50 m/s in 5 seconds.
What is 2m/s2?
The time interval of a car traveling in a straight line with a velocity of 5 m/s, speeding up to 8 m/s with an acceleration of 0.75 m/s2.
What is 4 s?
An object that is being acted upon only by the force of gravity.
What is free fall?
A segment of a velocity vs time graph showing an object that is slowing down.
What is a line with a negative slope?
The speed of a person who walks 500 m in 360 seconds.
What is 1.4 m/s?
The speed of a rocket that accelerates vertically at 1.6 m/s2 for 24 s.
What is 38.4 m/s
Designated by a positive or negative sign on a vector quantity.
What is direction?
A segment of a position vs time graph for an object that is accelerating.
What is a curved line?
The speed in m/s of a car driven 950 km in 12 hours.
What is 22 m/s?
The time for a ball to fall to the floor when dropped from a height of 1.5 meters.
What is 0.55 s?