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ITBS Level 13 Grade 7 Science 3
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Use your knowledge of science to answer questions below.

A student measures the length of a hanging spring when different masses are attached to the free end. (He takes the measurements when the mass is hanging motionless, not bouncing up and down.)

He records the following data: Mass: Length: 0 g30.0 cm

Mass:

Length:

0 g

30.0 cm

100 g

33.1 cm

200 g

36.3 cm

300 g

39.2 cm

400 g

42.5 cm

ITBS Level 13 Grade 7 Science 3
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3 Questions

1. In the table, what does the g stand for after the mass measurements?
2. In what direction is the net force on the mass when the student takes his measurements?
3. Which of the following best explains what is causing the length of the spring to change?