Shared Flashcard Set

Details

Knipp/1-d motion/easier
1-d motion (easier)
9
Physics
11th Grade
01/03/2010

Cards Return to Set Details

Term
 A runner in the Boston marathon covered the first 20 miles in a time of 4 hours. How fast was he running when he passed the 15 mile marker?
Definition
 There is not enough information to be able to say.
Term
 average speed is defined as ...
Definition
 distance travelled divided by the time it takes
Term
 A Honda Civic travels from milepost 405 to milepost 455 between 1:00 and 2:00 pm. ASubaru Legacy travels from milepost 200 to milepost 240 during the same time. Which car was traveling faster at 1:30 pm?
Definition
 There is not enough information to be able to say.
Term
 A train covers 60 miles between 2 pm and 4 pm How fast was it going at 3 p.m.?
Definition
 Not enough information is given to be able to say.
Term
 Car A travels from milepost 343 to milepost 349 in 5 minutes. Car B travels from milepost 493 to milepost 499 in 5 minutes. Which car has the greater average speed?
Definition
 Their average speeds are the same.
Term
 A yellow car takes ten minutes to go from milepost 101 to milepost 109. A red car takes ten minutes to go from milepost 11 to milepost 21. Which car has the higher average speed?
Definition
 the red one
Term
 In Aesop’s fable of the tortoise and the hare, the “faster” hare loses the race to the slow and steady tortoise. During the race, which animal has the greater average speed?
Definition
 the tortoise
Term
 Pat and Chris both travel from Los Angeles to New York along the same route. Pat rides a bicycle while Chris drives a fancy sports car. Unfortunately, Chris’s car breaks down in Phoenix for over a week, causing the two to arrive in New York at exactly the same time. Who has the higher average speed during this trip?
Definition
 They have the SAME average speed.
Term
 A cruise ship covers a distance of 80 miles during the watch that lasts from midnight to 8:00 am. How fast was the ship going at 4:00 am if the speed of the ship was constant during the watch?
Definition
 10 MPH
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