Definitions and simple concepts
Something with a magnitude and direction
What is a vector?
MATH
The average speed of an object that moved north 10 m and south 20 m, all in 2 hr
What is 15 m/hr?
The velocity AND acceleration of a ball thrown upwards when it's at its maximum height (with down as the negative direction)
What is zero and -9.8 m/s2?
The shape of the acceleration vs time graph for an object in free fall (ignore air resistance)
What is a horizontal line?
The height of the Washington monument if it takes 5.85 s for a baseball dropped at the top to reach the ground
What is 168 m?
The slope of a position vs time graph
What is velocity?
MATH
The final velocity of an object that started with an initial velocity of -2 m/s and accelerated at 4 m/s2 for 4 s
What is 14 m/s?
The initial velocity of an object whose position at time t is given by x(t) = 4 + 3t + 2t2 (no units needed)
What is 3?
Two words that describe maximum speed of an object in free-fall, taking into account air resistance
What is terminal velocity?
MATH
The acceleration needed for a Cessna to reach 135 km/hr by the end of a 260 m long runway
What is 2.7 m/s2?
The one word that best describes when an object's velocity is positive but its acceleration is negative
What is deceleration?
MATH
The displacement of an object with an initial velocity of 4 m/s, an acceleration of -2 m/s2, and an elapsed time of 3 s
What is 3m?
Temperature, velocity, acceleration, and displacement
This is the only quantity that's not a vector
What is temperature?
MATH
The displacement of a skydiver after 3 s after jumping off a cliff with an upwards initial velocity of 15 m/s
What is 0.9m?
MATH
The average velocity of a car that moved 10 miles north, 35 miles south, and 25 miles north within 2 hours
What is 0 mph?
The slope of a velocity vs time graph
What is acceleration?
MATH
The acceleration of an objet when its velocity changed from 100 mph to 50 mph within 2 hr
What is -25 miles/hr2?
The shape of a position vs time graph with negative initial velocity and positive acceleration
What is a parabola with a minimum (i.e U shape)?
MATH
The amount of time needed for a dropped object to fall down a mine shaft 44.1 m deep
What is 3 s?
MATH
A rock's final speed before it hits the ground if it is thrown downwards at 11m/s from a 25 m tower
What is 25 m/s?
The variable held constant during all of our kinematics problems
What is acceleration?
MATH
The acceleration of a truck that started from rest and reached 9.2 m/s after moving 26.2m
What is 1.62m/s2?
The shape of the velocity vs time graph for a ball that you toss up, with up as the positive direction
What is a line with negative slope and positive y-intercept?
MATH
The velocity of a basketball player who can jump 1.6 m off the floor
MATH
The time it takes a police car initially at rest and accelerating at a rate a to catch a car traveling at a constant velocity v
What is 2v/a?