WorksheetsUnit 2 Review
Total questions: 17
Worksheet time: 9mins
You and your dog go for a walk to the park. On the way, your dog takes many side trips to chase squirrels or examine fire hydrants. When you arrive at the park, do you and your dog have the same displacement?
yes
no
If the position of a car is zero, does its speed have to be zero?
yes
no
Does the odometer in a car measure distance or displacement?
distance
displacement
both
Does the speedometer in a car measure velocity or speed?
velocity
speed
both
neither
You drive for 30 minutes at 30 mi/hr and then for another 30 minutes at 50 mi/hr. What is your average speed for the whole trip?
more than 40 mi/hr
equal to 40 mi/hr
less than 40 mi/hr
You drive 4 miles at 30 mi/hr and then another 4 miles at 50 mi/hr. What is your average speed for the whole 8-mile trip?
more than 40 mi/hr
equal to 40 mi/hr
less than 40 mi/hr
If the average velocity is non-zero over some time interval, does this mean that the instantaneous velocity is never zero during the same interval?
yes
no
it depends
If the velocity of a car is non-zero v=0 , can the acceleration of the car be zero?
yes
no
depends on the velocity
When throwing a ball straight up, which of the following is true about its velocity v and its acceleration a at the highest point in its path?
both v = 0 and a = 0
v = 0, but a=0
both v=0 and a=0
You throw a ball straight up into the air. After it leaves your hand, at what point in its flight does it have the maximum value of acceleration?
its acceleration is constant everywhere
at the top of its trajectory
halfway to the top of its trajectory
just after it leaves your hand
just before it returns to your hand on the way down
Alice and Bill are at the top of a building. Alice throws her ball downward. Bill simply drops his ball. Which ball has the greater acceleration just after release?
Alice’s ball
it depends on how hard the ball was thrown
neither -- they both have the same acceleration
Bill’s ball
You throw a ball upward with an initial speed of 10 m/s. Assuming that there is no air resistance, what is its speed when it returns to you?
more than 10 m/s
10 m/s
less than 10 m/s
zero
need more information
You drop a rock off a bridge. When the rock has fallen 4 m, you drop a second rock. As the two rocks continue to fall, what happens to their speeds?
both increase at the same rate
the speed of the first rock increases faster than the speed of the second
the speed of the second rock increases faster than the speed of the first
both speeds stay constant
The graph of position versus time for a car is given below. What can you say about the velocity of the car over time?
it speeds up all the time
it slows down all the time
it moves at constant velocity
sometimes it speeds up and sometimes it slows down
The graph of position vs. time for a car is given below. What can you say about the velocity of the car over time?
it speeds up all the time
it slows down all the time
it moves at constant velocity
sometimes it speeds up and sometimes it slows down
Consider the line labeled A in the v versus t plot. How does the speed change with time for line A?
decreases
increases
stays constant
increases, then decreases
decreases, then increases
Consider the line labeled B in the v versus t plot. How does the speed change with time for line B?
decreases
increases
stays constant
increases, then decreases
decreases, then increases
