Projectile Motion — Unit test Answers
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Which is an example of speed?
A
Cindy biked westward at 30 km/h.B
A rock is to the left of a flowerpot.C
A dog runs an average of 8 mph.D
Leo lives 2 miles north of Andre.22
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For motion maps that illustrate accelerated motion, what does a new level indicate?
A
change in acceleration or directionB
constant acceleration and directionC
increased velocityD
decreased velocity23
Rosa uses the formula (vi cos)t to do a calculation. Which value is Rosa most likely trying to find?
A
the vertical acceleration of a projectile launched at an angleB
the vertical acceleration of a projectile launched horizontallyC
the horizontal displacement of a projectile launched at an angleD
the horizontal displacement of a projectile launched horizontally24
Rosa studies the position-time graph of two race cars.Rosa concludes that truck X has a greater velocity than truck Y, and that truck Y had a head start. She also concluded that the graph shows both trucks moving at a constant velocity and that neither truck changes direction.
A
Both trucks change direction after they start moving.B
Truck X had a head start, not truck Y.C
Truck Y has a greater velocity than truck X.D
The trucks are not traveling at constant velocities.25
Study the motion map shown. Some of the vectors have been circled.What do the circled vectors represent?
A
distanceB
speedC
velocityD
accelerationDid you find these answers helpful?
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