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Initial Teacher Focused Strategy

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TO DISCOVER THE RELATIONSHIP BETWEEN THE FORCE APPLIED TO A SPRING VS THE STRETCH ... GRAPH #1: CHUNKY. STRETCH (m) FORCE (N) GRAPH #2: PEE-WEE. STRETCH (m) FORCE (N) ... – PowerPoint PPT presentation

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Title: Initial Teacher Focused Strategy


1
(No Transcript)
2
LAB 2
  • HOOKES LAW
  • FUN WITH SPRINGS

3
GOALS
  • TO DISCOVER THE RELATIONSHIP BETWEEN THE FORCE
    APPLIED TO A SPRING VS THE STRETCH
  • (HOOKES LAW)
  • TO DETERMINE THE SPRING CONSTANT (k) OF A SPRING
  • TO USE INTERACTIVE PHYSICS TO SIMULATE HOOKES LAW

4
PROCEDURE
  • CHOOSE 3 DIFFERENT SPRINGS
  • GIVE EACH A DISTINCTIVE NAME
  • HANG EACH SPRING. MEASURE INITIAL, UNSTRETCHED
    LENGTH
  • HANG MASSES FROM EACH SPRING, MEASURING THE
    STRETCH CAUSED BY EACH MASS
  • REPEAT FOR ATLEAST 5 DIFFERENT MASSES.
  • REPEAT EXPERIMENT USING INTERACTIVE PHYSICS

5
MASS vs WEIGHT
m
W weight
W
g 9.8 N/kg
W mg
6
Measure Spring Stretch
DL1
DL2
7
Measure Spring Stretch
DL1
DL2
8
DATA TABLE
9
GRAPH 1 CHUNKY
FORCE (N)
STRETCH (m)
10
GRAPH 2 PEE-WEE
FORCE (N)
STRETCH (m)
11
GRAPH 3 SLIM WHIT
FORCE (N)
STRETCH (m)
12
WRITE-UP
  • ABSTRACT
  • BACKGROUND (Intro, Goals)
  • METHOD
  • SCREEN SHOT OF I.P. WITH VECTORS ADDED (W, DL)
  • DATA TABLE
  • GRAPHS
  • TRENDLINES
  • SLOPE ANALYSIS
  • CONCLUSION

13
Lab 2 Hookes Law
  • Post lab Analysis

14
FORCE VS STRETCH
F a DL
F
k
constant
slope
DL
FORCE (N)
k spring constant
(N/m)
k F/DL
STRETCH (m)
15
HOOKES LAW
k F/DL
F k DL
16
SPRING CONSTANT (k)
k a F
The bigger the k, the stiffer the spring
17
Hookes Law
Spring A stiffest
Spring A
k slope
FORCE (N)
Spring B
Slinky k 0
STRETCH (m)
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