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    Intro to the Physics Waves

    Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

    1

    When a pendulum or a mass on a spring is not in motion, but allowed to hang freely, the position it assumes is called its ______________ .

    2

    The units of frequency are named after the German scientist Heinrich Hurtz, who was the discoverer of ________________ waves.

    3

    A large pendulum which proves the rotation of the earth was first built in Paris by _________________ .

    4

    The Tacoma Bridge collapsed because of this type of resonance: __________________ .

    5

    When the particles of a medium vibrate at right angles to the direction of motion, the wave is called a _________________ wave.

    6

    When the particles of a medium vibrate parallel to the direction of motion, the wave is called a _________________ wave.

    7

    When a wave moves from one medium to another, its frequency remains the same but its ______________ changes.

    8

    When a wave pulse is reflected from a fixed end, the reflected wave pulse is ________________ .

    9

    A point in the medium of a standing wave that vibrates the most is called an ___________________ .

    10

    All natural frequencies higher than the fundamental frequency are called________________.