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Mechanical Resonance

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Page 1: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Mechanical Resonance

Page 2: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Natural Frequency All objects have a NATURAL

FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many other factors.

Page 3: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Mechanical Resonance If a PERIODIC FORCE or vibration has

the SAME (or very close to the same) frequency as the NATURAL FREQUENCY of the object, resonance occurs. When resonance occurs the object will begin to vibrate with a VERY LARGE AMPLITUDE.

Page 4: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Mechanical ResonceApproximately equal

Natural Frequency

Forcing Frequency

Under these conditions, large amplitude oscillations will occur.

Page 5: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Resonance Applet

http://www.walter-fendt.de/ph14e/resonance.htm
Page 6: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Swing Set Resonance

Page 7: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Tuning Fork Resonance

Page 8: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Building Resonance

Page 9: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Resonating Wine Glasses

Page 10: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Ground Resonance

Page 11: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Wing Resonance

Page 12: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Breaking Wine Glass

Page 13: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Breaking Wine Glass (part 2)

Page 14: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Bridge Resonance

Page 15: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

Gallopin’ Gertie

Page 16: All objects have a NATURAL FREQUENCY at which they tend to vibrate. This frequency depends on the material the object is made of, the shape, and many

The Brown Note


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