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 line with a slope of 0?
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?
A bowling ball and a ping-pong ball are dropped from the same height at the same time in a vacuum chamber. _______ will hit the ground first.
What is both?
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 line with a slope of 0?
The velocity of an object that moves 50 m in 10 s.
What is +5m/s?
The distance the car travels as it accelerates uniformly from 30 m/s to 50 m/s in 15 s.
What is 600 m?
You throw a ball up on Jupiter where gravity is 24.79 m/s2. If you were to throw a ball up and catch it at
the same point you released it, the time it is in the air would be ____ than the time on Earth.
What is less?
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 forward (positive direction) at a decreasing velocity.
What is a curve with decreasing slope?
The acceleration of a car that goes from 40 m/s to 50 m/s in 5 seconds.
What is 2m/s2?
You throw an object straight up at 35 m/s. The object is ___ at t=5 seconds.
What is falling (because velocity at t = 5 seconds is calculated to be negative)?
You linearize a quadratic by ______.
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 while traveling in the negative direction.
What is a line with a positive slope?
The speed of a person who walks 500 m in 360 seconds.
What is 1.4 m/s?
The time for a ball to fall to the floor when dropped from a height of 1.5 meters, assuming earth's acceleration due to gravity of 10 m/s2.
What is 0.55 m/s?
When acceleration and velocity have opposite signs, the object is _______.
What is slowing down?
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 curve with increasing slope?
The speed in m/s of a car driven 600 miles in 12 hours, assuming 0.62 miles in 1km.
What is 22 m/s?
A runner accelerates from rest for 2 seconds in a 100 meter race. The last 90 meters are run at a constant
velocity after reaching their top speed. The sprinter’s acceleration during the first 2 seconds is ____.
What is 5 m/s2?
The math model for the equation y = 3.26x - 0.25 where y is height (cm) and x is time (min) is _____.
What is height = 3.26(cm/min)(time) - 0.25 cm?