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lecture14-pendulums and energy

# lecture14-pendulums and energy - What you can do so far can...

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What you can do so far … can describe SHM with graphs and equa:ons What you will be able to do a<er today … what parameters effect the period (T) of a pendulum a pendulum using SHM Explain … the period of a pendulum energy at any amplitude A in SHM Calculate … conserva:on of energy to SHM to pendulum Apply …

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Energy in SHM E total = K + U = 1 2 mv 2 + 1 2 k x 2 E tot = 1 2 k A 2 E tot = 1 2 mv max 2 Potential energy stored in the spring is transformed into kinetic energy of moving mass. Conservation of energy allows to find the velocity of the mass at any position during the oscillations
clicker A) 2 > 4 > 1 > 5 > 3 B) 3 > 2 > 4 > 5 > 1 C) 1 > 5 > 4 > 2 > 3 D) 1 = 2 = 3 = 4 = 5 E) 3 = 5 > 1 > 2 = 3 Rank in order from the highest to the lowest for positions 1-5 elastic potential energy

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clicker A) 2 > 4 > 1 > 5 > 3 B) 3 > 2 > 4 > 5 > 1 C) 1 > 5 > 4 > 2 > 3 D) 1 = 2 = 3 = 4 = 5 E) 3 = 5 > 1 > 2 = 3 Rank in order from the highest to the lowest for positions 1-5 kinetic energy
clicker A) 2 > 4 > 1 > 5 > 3 B) 3 > 2 > 4 > 5 > 1 C) 1 > 5 > 4 > 2 > 3 D) 1 = 2 = 3 = 4 = 5 E) 3 = 5 > 1 > 2 = 3 Rank in order from the highest to the lowest for positions 1-5 total energy

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