(Free Narrative Essays)for a Happiest Day in My Life

Topics: Classical mechanics, Acceleration, Kinematics Pages: 3 (635 words) Published: December 18, 2012
21. Assessment
CRCT Preparation

Multiple Choice
USE THE DIAGRAM BELOW TO ANSWER QUESTIONS 1–3.

|Time (s) |Distance (m) | |0 |0 | |1 |96 | |2 |192 | |3 |288 | |4 |384 |

car on the straight section of a race track. What is the racing car’s speed? 1.During a field experiment about speed, a scientist created the chart above. The chart shows distance and time measurements for a racing A.0 m/s

B.96 m/s
C.192 m/s
D.384 m/s

2.What is the racing car’s acceleration?
A.0 m/s2
B.96 m/s2
C.192 m/s2
D.384 m/s2

3.Theodore plots the data in the chart above. He plots distance on the y-axis and time on the x-axis. How will the movement of the racing car be represented on the graph? A.a curved line

B.a straight line
C.a series of connected straight lines
D.a single point

CRCT Preparation continued

4.A downhill skier has her skis sharpened and waxed before every race. What effect would this have on her performance? A.The force of friction between the skis and snow would increase, and her speed would decrease. B.The force of friction between the skis and snow would decrease, and her speed would decrease. C.The force of friction between the skis and snow would increase, and her speed would increase. D.The force of friction between the skis and snow would decrease, and her speed would increase.

Use the diagram below to answer question 5.

5.What is the average speed of the toy car if...
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