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WorksheetsForce and Motion Honors 1
Total questions: 15
Worksheet time: 8mins
An old trick to determine an approximate distance to a storm is to count the number of seconds it takes to hear a peal of thunder after seeing a lightning bolt and divide that number by 5 to get the number of miles to the storm. If it takes 15 seconds for thunder to reach an observer 3 miles away, about how fast is the sound of the thunder traveling in miles per second to the nearest tenth?
2.0
5.0
0.2
0.5
Lewis ran a marathon and wants to know his average speed during the race. It took him 3.5 hours to run 25 miles. If 1 kilometer is equal to 0.62 miles, then what is his average speed in kilometers per hour to the nearest tenth?
4.4
6.3
10.3
11.5
Two cars, A and B, are 400.0 meters apart. Car A is traveling due east at 30.0 meters per second, and car B is traveling due west at 20.0 meters per second. How much time will elapse before the two cars pass each other?
6.7s
8.0s
8.4s
10.0s
54
60
100
28
2
3
4
5
A student sets up an investigation to analyze the motion of a battery-powered toy car. The student
uses a machine with a vibrating pin that makes a mark every 0.1 second on a long narrow piece of
paper called ticker tape.
Which action should the student take in step 3 to determine the speed of the car, and which analysis of the speed of the car is correct?
step 3. Count the total number of dots on the ticker tape.
analysis: The speed remained constant during the entire period.
step 3. Measure the distance between each successive dot on the ticker tape.
analysis: The speed decreased at first and then became constant.
step 3. Count the total number of dots on the ticker tape.
analysis: The speed continued to increase during the entire period.
step 3. Measure the distance between each successive dot on the ticker tape.
analysis: The speed increased at first and then became constant
The graph above shows the velocity of a car that is moving in a straight line. During which of the following intervals are forces on the car balanced?
q to r
r to s
s to t
t to u
1 m/s/s
2 m/s/s
4 m/s/s
8 m/s/s
Kevin drives 4 miles to the mall. If the speed limit is 45 miles/hr and Kevin makes the trip in .03 hours, did he break the speed limit?
No, he is going 1 mile / hr
Yes, he is going 133 mph
No, he is going 40 mph
Yes, he is going 150 mph
An object is continuously changing its velocity by the same rate. What is true about this object?
The object has decreasing acceleration.
The object has increasing acceleration.
The object has zero acceleration.
The object has constant acceleration.
A school bus moves down a road, dropping off students after school. The bus slows down from a speed of 15 meters per second to a full stop over a distance of 55 meters in 11 seconds. What is the average speed, in meters per second, of the school bus while the bus is slowing down?
3.7
5.0
26
40
A group of bike riders went on a 4-hour trip. During the first 3 hours, they traveled a total of 50.0 kilometers, but during the last hour, they traveled only 10.0 kilometers. What was the group's average speed for the entire trip?
15km/h
13.3 km/h
26.6 km/h
30.0 km/h
A cart starting from rest travels a distance of 3.6 meters in 1.8 seconds. What is the cart's average speed?
0.20 m/s
0.50m/s
2.0 m/s
5.0 m/s
The average velocity of an object over a 6.0-second interval is 2 meters per second. What is the total distance traveled by the object during this time interval?
0.083 m
0.33 m
3 m
12 m
A car is driven southward in a straight line with decreasing speed. Which of the following statements is necessarily true about the acceleration of the car?
It is constant but not zero.
It is directed southward.
It is zero.
It is directed northward.
