Suppose You Watch a Leaf Bobbing Up and Down as Ripples

question 3

Multiple Choice

Suppose you watch a leaf bobbing up and down as ripples pass it by in a pond.You notice that it does two full up and down bobs each second.Which statement is true of the ripples on the pond?

• A)They have a frequency of 4 hertz.
• B)They have a frequency of 2 hertz.
• C)We can calculate the wavelength of the ripples from their frequency.
• D)They have a wavelength of two cycles per second.

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Definitions:

Fusion Reaction

A nuclear reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles, releasing large amounts of energy.

Fission Reaction

A nuclear reaction in which a heavy nucleus splits into smaller nuclei, releasing energy and, often, neutrons.

U-238

U-238 denotes uranium-238, the most abundant isotope of uranium found in nature, known for its long half-life and use as a starting material in the production of nuclear fuel and atomic weapons.

U-235

An isotope of Uranium with a unique capability for nuclear reactions, particularly used in nuclear reactors and weapons.