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Acceleration
Test Description: Acceleration Practice Problems
Instructions: Answer all questions to get your test result.
1) A pitcher requires about 0.1 second to throw a baseball. If the ball leaves his hand with a speed of 40 m/s, what is its acceleration?
A
400 m/s/s
B
400 m/s
C
40 m/s/s
D
0.1 s
2) A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
A
35 seconds
B
750 seconds
C
3.3 seconds
D
0.3 seconds
3) A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?
A
-0.56 m/s2
B
0.56 m/s2
C
-1400 m/s2
D
1400 m/s2
4) A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest. Find the acceleration.
A
24 m/s2
B
81 km/hr
C
30 m/s
D
9 m/s2
5) A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
A
16 m/s
B
24 m/s2
C
16 m/s2
D
18 m/s2
6) A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
A
-0.5 m/s2
B
-7.5 m/s2
C
-7.5 m/s
D
7.5 mi/hr
7) A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.
A
70m/s2
B
7.0m/s2
C
5.7m/s2
D
2.2m/s2
8) Acceleration is defined as the CHANGE in
A
distance divided by the time interval
B
velocity divided by the time interval
C
time it takes for one place to move to another place.
D
velocity of an object.
9) Flash goes from -150 m/s to +150 m/s in a time of 20 s. What was its acceleration?
A
-10 m/s2
B
-23 m/s2
C
+15 m/s2
D
+16.5 m/s2
10) An asteroid goes from +25 m/s to -350 m/s in a time of 40 s. What was its acceleration?
A
-23 m/s2
B
+15 m/s2
C
+16.5 m/s2
D
-8.13 m/s2
11) What is the correct unit for acceleration?
A
km/s
B
mph
C
m/s2
D
m/s
12) A bike starts from rest (0 m/s) with an acceleration of +2m/s2. What will its velocity be after 5s?
A
-10 m/s
B
+ 10 m/s
C
-4 m/s
D
+2 m/s
13) A skateboard starts from rest (0 m/s) and accelerates at -2m/s2. What will its velocity be after 6s?
A
+ 12 m/s
B
-4 m/s
C
-12 m/s
D
+8 m/s
14) An helicopter goes from +15 m/s to -45 m/s in a time of 25 s. What was its acceleration?
A
-12.78 m/s2
B
-2.4 m/s2
C
+16.5 m/s2
D
+15 m/s2
15) An boulder goes from -15 m/s to -145 m/s in a time of 25 s. What was its acceleration?
A
+15 m/s2
B
+16.5 m/s2
C
-2.4 m/s2
D
-5.2 m/s2
16) Acceleration is the rate at which _______ changes
A
velocity
B
speed
C
Earth
D
direction
17) True or False? If a car is slowing down it is accelerating.
A
False
B
True
*select an answer for all questions
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