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Presentation transcript:

Read and say! How many words do you know? Click and wait Click!

spring weightscale fix measure stand axis Click! division extension rate

scale division measuring instrument horizontal axis scaled rule vertical axis Click!

Keywords: Spring extension Laboratory stand Measuring instrument Scale division Constant Click! ?

Find a relation between the force and length change Click!

Tools: Spring Scaled rule Laboratory stand Weights Click! ?

Process: 1.Fix the spring on a stand 2.Hang one weight on a spring 3.Measure the length change Click!

Process: 4.Continue with 2, 3, 4… weights 5.Note in the table 6.Draw a graph with a legend Click!

START NOW Click!

Sources: Thanks to Charmaine McKinnon © Petr Špína 2011 Wikipedia – see here