When Rutherford Directed a Stream of Alpha Particles at a Gold

question 9

Multiple Choice

When Rutherford directed a stream of alpha particles at a gold foil, most particles

• A)bounced back.
• B)continued through.
• C)stopped.
• D)spiraled.

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Definitions:

Efficiency

The ratio of the output generated to the input used, expressing the effectiveness of a system or process in utilizing resources.

Break Even

The point at which total revenues equal total costs, resulting in no profit or loss.

Variable Costs

Costs that change in direct proportion to the level of production or business activity.

Profit

The financial gain or return derived from an investment, transaction, or operation after subtracting all costs, expenses, and taxes.