Hypotheses, Theories, and Laws Practice

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What is a Law in science?

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A Law is a statement that describes a consistent and universal relationship observed in nature, often expressed mathematically.

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What is a Theory in science?

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A Theory is a well-substantiated explanation of an aspect of the natural world that is based on a body of evidence and can make predictions.

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What is a Hypothesis?

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A Hypothesis is a testable prediction or educated guess about the relationship between two or more variables.

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What does Newton's 1st Law of Motion state?

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An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by an unbalanced force.

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What does Newton's 2nd Law of Motion state?

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The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

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What does Newton's 3rd Law of Motion state?

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For every action, there is an equal and opposite reaction.

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Can scientific Laws change?

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Yes, scientific Laws can be modified or refined as new evidence is discovered.

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What is the difference between a Law and a Theory?

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A Law describes what happens under certain conditions, while a Theory explains why it happens.

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What is an example of a scientific Law?

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The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction.

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What is an example of a scientific Theory?

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The Theory of Evolution explains how species change over time through natural selection.

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