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Forces Review
Test Description: Review of forces unit
Instructions: Answer all questions to get your test result.
1) The student wants to be able to increase the speed of the bike while applying the same amount of force. Which statement describes the best long-term solution to this problem?
A
Increase the width of the tires to grip the road better
B
Add links to increase the length of the bike chain
C
Switch to thinner tires to increase friction
D
Remove unneeded bike parts to reduce mass
2) Which statement most accurately describes the motion of the car in this graph?
A
The car is increasing in speed, stops and then returns home at a slower constant speed.
B
The car is traveling at a constant speed, stops and then returns home at a faster constant speed.
C
The car is increasing in speed, stops and then returns home at a faster speed.
D
The car is traveling at a constant speed, stops and then continues at a faster constant speed.
3) Which of the following would be the best controlled scientific investigation to determine how the amount of force on an object affects its speed?
A
Push various objects with different masses at least three times and measure its average speed.
B
Push an object of the same mass with different amounts of force at least three times and measure its average speed.
C
Push an object with the same force with different amounts of mass and calculate its average speed.
D
Push various objects with different amounts of force and measure there average speed.
4) Which of the following correctly identifies the average speed and motion of this car?
A
75 km/hr accelerating with a negative velocity
B
5 m/s accelerating with a positive velocity
C
15 m/s decelerating with a negative velocity
D
15 km/hr decelerating with a positive velocity
5) Which of the following accurately predicts the fastest moving box and it's resulting direction?
A
Model 1 to the south
B
Model 3 to the south
C
Model 4 to the east
D
Model 2 to the west
6) Which of the following best explains why the fatality rate increases when belt use rate decreases?
A
Inertia causes a passenger in a car to continue to move forward without a seat belt even though the car stops.
B
Inertia causes a passenger in a car to stop with a seat belt even though the car stops.
C
Inertia causes a passenger in a car to continue to move side to side with a seat belt even though the car stops.
D
Inertia causes a passenger in a car to continue to move backward with a seat belt even though the car stops.
7) On average, students in middle school ran 1 mile in approximately 10 minutes. What is the average speed of students in middle school running a mile?
A
1 mpm
B
0.1 mpm
C
10 mph
D
1 mph
8) Which of the following would be the best graph to represent the relationship between the mass of two objects and the gravitational attraction between them?
A
Graph A
B
Graph D
C
Graph B
D
Graph C
9) Which of the following investigations best supports Newton's 3rd law of motion?
A
Investigation #4
B
Investigation #2
C
Investigation #1
D
Investigation #3
10) On which of the following surfaces would a rolling cart take the longest to slow down and stop?
A
Table
B
Turf Rubber
C
Glove
D
Sandpaper
11) Which of the following orders the speed of these objects from fastest to slowest?
A
C, D, B, A
B
A, B, D, C
C
A, B, C, D
D
C, A, D, B
*select an answer for all questions
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