Answers26-27 CFISD TX-Chemistry A CRHypotheses, Laws, and Theories

Hypotheses, Laws, and Theories Answers

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1
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Which of the following is the best example of a scientific law?

A
The gravitational force between two objects is related mathematically to their mass and the distance between them.
B
If an object is pushed off the edge of a table, it will fall to the ground.
C
Gravitational force is the result of the curvature of the fabric of space-time.
2
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Which statement best describes the difference between a scientific theory and a scientific law?

A
A scientific theory is supported by more data than a scientific law.
B
A scientific theory can explain observations.
C
A scientific law includes equations.
4

Which of the following are testable?

A
hypotheses
B
laws
C
theories
5

Which of the following explains observations?

A
hypotheses
B
laws
C
theories
6

Soda and other carbonated beverages seem more "fizzy" when they are served on an airplane at standard cruising altitude. Write a hypothesis that could explain this observation

Answer:

If the atmospheric pressure surrounding a carbonated beverage decreases, then more gas will escape from the liquid, making the drink appear more fizzy.

7

Summarize the differences between a legal law and a scientific law.

Answer:

Legal laws are passed by lawmakers and are based on the opinions and beliefs of people, which means they can be changed if people's minds change and can have exceptions. In contrast, scientific laws are discovered and tested through experiments and observations. They describe universal truths about the natural world that do not change based on human opinion.

10

Your hypothesis should meet all the following criteria. Check the box next to each criterion that your hypothesis met.

A
It’s testable.
B
It can be supported or refuted by data.
C
It includes a prediction.
11

Did your answer include all of the following?

A
Legal laws are passed by lawmakers in a democratic process that accounts for people's opinions and beliefs.
B
Scientific laws are discovered and tested by experiments.
C
Legal laws can be changed if people change their minds.
D
Legal laws may have exceptions.

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Hypotheses, Laws, and Theories Answers — 26-27…