C.1 Simple Harmonic Motion

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17 Terms

1
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Define cycle

One complete ā€˜there and backā€™ swing from A to B and back to A

2
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Define amplitude

The maximum displacement from the equilibrium position

3
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What is the amplitude measured in?

meters

4
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Define time period

The time taken for one complete cycle from A to B and back to A

5
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Define frequency

The number of complete cycles per second

6
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What is frequency measured in?

Hertz (Hz)

7
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Define angular frequency

the rate of change of angular displacement with respect to time

8
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What is angular frequency measured in?

radians per second

9
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Define simple harmonic motion

SMH is when the acceleration of a body is proportional to its displacement, but acts in the opposite direction

10
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What is the name of the force responsible for the motion?

restoring force

11
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Name 3 examples of SHM

pendulum of a clock, child on a swing, bungee jumper reaching the bottom of their fall

12
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When does acceleration reach its maximum value? (in terms of displacement, x)

x = x(0) (so the amplitude)

13
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When is the speed maximum (in terms of displacement

at the midpoint

14
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In an energy-displacement graph, when is the kinetic energy highest?

when x = 0

15
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In an energy-displacement graph, when is the potential energy highest?

at the amplitudes

16
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What happens to the total energy in a energy-displacement graph?

it stays constant

17
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Energy is always _____ (positive/negative) in an SHM energy graph

positive