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Module 9 - Physical Science
Test Description: Physics of Motion
Instructions: Answer all questions to get your test result.
1) What is the speed of a boat that travels 150 miles in 2 hours? Please answer in miles per hour.
A
70 mph
B
30 mph
C
.0133 mph
D
75 mph
2) What is the speed of a jogger who jogs 600 meters in 45 minutes? Please answer in meters per second. (60 seconds = 1 minute)
A
.22 m/s
B
-4.5 m/s
C
4.5 m/s
D
-.22 m/s
3) A car and a truck are traveling north on a highway. The truck has a speed of 45 miles per hour and the car has a speed of 57 miles per hour. If the truck is ahead of the car, what is the relative velocity?
A
-102 m/s North
B
-12 m/s North
C
102 m/s North
D
12 m/s North
4) If an object travels for 3 hours with a constant velocity of 12 miles per hour west, what is the acceleration?
A
4 m/s^2
B
.25 m/s^2
C
0 m/s^2
5) A sports car goes from a velocity of zero to a velocity of 12 meters per second east in 2 seconds. What is the car’s acceleration?
A
-6 m/s^2
B
.17 m/s^2
C
.17 m/s^2
D
6 m/s^2
6) A train takes a long time to stop. That’s what makes trains so dangerous to people who cross the tracks when one is near. If a train is traveling at 30 meters per second south and takes 720 seconds to come to a stop, what is the train’s acceleration?
A
24 m/s^2
B
-24 m/s^2
C
.042 m/s^2
D
-0.042 m/s^2
7) A long, vertical glass tube contains a feather and a penny. All the air is pumped out, and the tube is inverted, causing the penny and the feather to fall. Which hits the bottom first, the feather or the penny?
A
The Penny
B
They hit the bottom at the same time
C
The Feather
8) What is the height of a building (in meters) if it takes a dropped rock 4.1 seconds to fall from its roof?
A
20.25 meters
B
82.37 meters
C
40.18 meters
D
164.74 meters
9) A hot-air balloonist drops a rock from his balloon. It takes 7 seconds for the rock to fall to the ground. What is the balloonist’s altitude in feet?
A
2.29 feet
B
784 feet
C
34.3 feet
D
112 feet
10) Which is a vector quantity?
A
. 1.2 meters/second2 east
B
10 meters
C
3.4 feet/hour slowing
D
56 liters
*select an answer for all questions
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