Graphs
Motion in One Dimension
Projectile Motion
Circular Motion
Miscellaneous
100
What is the slope of a velocity graph?
Acceleration.
100
What must be constant in order to use the equations?
Acceleration.
100
What are the accelerations in the x and y directions?
Acceleration in the x is zero.
Acceleration in the y is gravity (9.81 m/s2).
100
What is centripetal acceleration?
The acceleration that points toward the center of the circle.
100
What is the difference between a scalar and a vector?
A scalar is only a magnitude.
A vector has a magnitude and a direction.
200
What is the area under a velocity graph?
(Change in) position.
200
Which four variables are involved in the equations?
Position (m), velocity (m/s), acceleration (m/s2), and time.
200
What is the velocity in the y-direction of an object that is at the top of its arc?
0 m/s.
200
How do you find velocity, given revolutions per second?
200
What is the difference between distance and displacement?
Distance is how far an object travels.
Displacement is an object's net distance from its starting position.
300
What is the runner's acceleration?
1 m/s2
300
A stone is dropped into a deep well and is heard to hit the water 3.41 s after being dropped. Determine the depth of the well.
57 meters.
300
A soccer ball is kicked horizontally off a 22.0-meter high cliff and lands a distance of 35.0 meters from the cliff of the hill. Determine the initial horizontal velocity of the soccer ball.
Initial velocity = 16.5 m/s
300
What is the centripetal acceleration of a racecar traveling around a circular track of radius 78 meters, with a velocity of 25 m/s?
8.0 m/s2
300
What chapters does the exam cover?
Chapters 1-3
400
What is the runner's change in position from t=4 to t=7?
4.5 meters.
400
A kangaroo jumps up to a height of 3 meters. What is its initial velocity?
7.67 m/s.
400
A football is kicked with an initial velocity of 25 m/s at an angle of 45-degrees with the horizontal (17.68 m/s in the x, 17.68 m/s in the y). Determine the time of flight, the horizontal distance, and the peak height of the football.
t = 3.6 seconds
distance = 63.6 meters
height = 15.9 meters
400
A merry-go-round has a diameter of 10 meters and takes 17 seconds to complete one rotation. What is the centripetal acceleration of a person sitting at the edge of the ride?
0.68 m/s2
400
When is the exam due?
October 28th (Monday)