Motion Quiz 1
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Question 1 of 11
1. Question
1 pointsTwo people start walking at the same time in the same direction from the same place. One person walks at 4 km/hour and the other person walks at 3 km/hour. In how many hours will they be 1 km apart?
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Correct answer 0.5 km

Question 2 of 11
2. Question
1 pointsHow long will it take a car to travel between two cities that are 120km apart, when the car is traveling at a speed of 100km/hr?
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Question 3 of 11
3. Question
1 pointsAt what speed must a car be traveling if it takes 1 hour and 30 minutes to travel between two cities that are 120 km apart?
Please, write the answer as a number, for example, 30, 40, etc., without measurement units
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Question 4 of 11
4. Question
1 pointsTwo kids start to ride on roller skates at the same time in the same direction from the same place, the first one at a speed of 6 km/hour and the second one with a speed of 8.5 km/hour. How far are they apart in 2 hours?
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Question 5 of 11
5. Question
1 pointsA passenger on a train traveling at 115 km/h walks toward the back of the train at a rate of 5 km/h. What is the passenger’s rate of travel with respect to the ground?
Give an answer without measurement units, for, example, 140 instead 140 km/h.
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Question 6 of 11
6. Question
1 pointsA passenger on a train traveling at 115 km/h walks toward the train moving at a rate of 5 km/h. What is the passenger’s rate of travel with respect to the ground?
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Question 7 of 11
7. Question
1 pointsA passenger on a train traveling at 115 km/h walks toward the back of the train at a rate of 5 km/h. What is the passenger’s rate of travel with respect to a person who walks along the railway platform toward the back of the train moving at a rate of 5 km/h?
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Question 8 of 11
8. Question
1 pointsA train of 1 km length travels at a rate 60 km/h. How long will it take to pass the tunnel of 1 km?
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Solution : The speed equal to 60 km/h corresponds to the rate of 1 km/min. A first wagon of a train travels the tunnel end in one minute and last wagon – in the other minute. Total time is 2 minutes.
Answer : Two minutes.

Question 9 of 11
9. Question
1 pointsProblem : A 2meter tall man stands at a distance of 4 meters from a 10 meter tall light post. Find the length of the man shadow (length ED).
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Solution : Triangles ABD and ECD are similar. ThereforeABéEC=ADéED. LetèssayAD=X. Then 10/2=(4+X)/X. X=1 Answer : Length of a shadow is 1 m

Question 10 of 11
10. Question
1 pointsBicycle wheel has a radius of R= 40 centimeters. Find the linear bicycle speed V if a wheel makes 100 rotations per minute.

Question 11 of 11
11. Question
1 pointsA bicycle wheel is R centimeters diameter. How far does the point A go in N revolutions of the wheel?
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