Pre-lab: Hookes Law Name:
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In today’s lab, you will repeat the basic
procedure to measure the spring constant in a spring. Work = Fapplied
Δx Then we will be predicting how far a spring will
drop by placing a weight on the spring, similar to
in class when you use the conservation of energy equation, stating the total
energy in a system is constant Eo =
Ef ½ kxo2 + mghtop + ½ mvo2 = ½ kxf2 + mghbottom + ½ mvF2 |
dW = F dx dW = -kx
dx dW = -k ∫x dx Wspring = -½kxf2
- -½kxo2 Wspring = ½kxo2
- ½kxf2W Just for fun F = k xn log F = n log x + log k y = m
x + b |
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In the last part we will be using a Bungee Cord. Below is data from another “Bungee Cord” look-a-like, similar but not the same as the last part of our lab. Predict how far it will stretch if we place 10 Newtons on this cord |
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m (grams) |
Stretch (cm) |
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10 |
10.1 |
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40 |
19.9 |
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90 |
29.9 |
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160 |
40.0 |
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250 |
50.1 |
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360 |
60.0 |
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490 |
69.9 |
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640 |
80.0 |
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