If a pinball machine launches a ball to a top speed ofm/s, with an acceleration ofm/s2 in a time of 0.seconds. What is the pinball's starting velocity (assume it is not zero)?
19 m/s
5 m/s
22 m/s
21 m/s
Q.2.
A jaguar takes 2.8 seconds to run 46.4 meters. Determine the jaguar's speed.
0.060 m/s
17 m/s
44 m/s
-17 m/s
Q.3.
Alexis is riding her bike around town. She travels 43.2 m to the right, and then turns around to bike an additionalm to the left. Determine the velocity of Alexis's bike ride if it takes her 39.4 seconds to complete her motion.
2 m/s to the right
2 m/s to the left
0.3 m/s to the right
0.3 m/s to the left
Q.4.
What does a horizontal line on a distance vs time graph tell us about the motion of the object?
Slowing down
Speeding up
Standing still
In free fall
Q.5.
What does a horizontal line on a velocity vs time graph tell us about the motion of an object?
Constant speed
Standing still
Slowing down
Speeding up
Q.6.
What does a constant velocity do tour our acceleration?
Acceleration increases
Acceleration decreases
Acceleration is zero
Acceleration is not affected by velocity
Q.7.
A ball is launched from a spring on the floor with an initial velocity ofm/s. It then comes to a stop in 4.3 seconds. Determine the acceleration of the ball.
+12 m/s2
-7.4 m/s2
-12 m/s2
+7.4 m/s2
Q.8.
A chinchilla starts moving from rest and is accelerating at a rate of 1.3 m/s2 for 2.8 seconds. What is the chinchilla's final velocity?
2.2 m/s
0.45 m/s
6.1 m/s
3.6 m/s
Q.9.
What are our units for acceleration?
m
m/s2 or meters/second/second
N
m/s or meters/second
Q.10.
How can you change the acceleration of an object?
Speed the object up
Keep the object at a constant speed
Slow the object down
Change the object's direction
Q.11.
Imagine Mr. Gomez spinning a yo-yo in a circular motion with a constant speed. Would the yo-yo have an acceleration during its motion?
Yes; the displacement is changing, resulting in a changing acceleration
No; objects at a constant speed always have zero acceleration
No; acceleration does not apply to centripetal (circular) motion
Yes; the direction is constantly changing, which changes the acceleration
Q.12.
Vionni is jogging at a speed of 1.9 m/s, when she hears about a sale at the local heladería (ice cream shop). Vionni accelerates at a rate of 0.m/s2 for the nextseconds until she arrives at the shop. Find Vionni's final velocity.
4.9 m/s
2.0 m/s
7.3 m/s
0.13 m/s
Q.13.
A Frisbee is tossed from rest and reaches a top velocity of +m/s in 3.2 seconds. Determine the displacement of the Frisbee's motion.
-170 m
+76 m
+170 m
-76 m
Q.14.
A roller coaster accelerates at a rate of 30.0 m/s2 from the station to reach a loop in 3.seconds. If starting from rest, how far did the roller coaster travel before it reaches the loop?
217 m
180 m
110 m
7.9 m
Q.15.
A sports car travels a distance ofmeters while attaining a certain top speed. If the car's acceleration ism/safter starting with a speed ofm/s, what would be the car's top speed?
50 m/s
150 m/s
285 m/s
170 m/s
Q.16.
A dog runs with an initial speed of 7.5 m/s to a stop inseconds. What is the dog's acceleration?
-7.5 m/s
-7.5 m/s2
-0.5 m/s2
7.5 mi//hr
Q.17.
A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.s. How far does the car travel during those 5.seconds before it stops?
4.20 m
52.5 m
105 m
158 m
Q.18.
A quantity that is has magnitude and direction is referred to as a
vector quantity
scalar quantity
Q.19.
A car slows down from +m/s to +8 m/s in 4 s. The acceleration is
6 m/s/s opposite the motion
2m/s/s in the direction of motion
8 m/s/s opposite the motion
Q.20.
The unit we use to measure acceleration is ___.
meters / second
meters
seconds
meters / second / second
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