AnswersFA Vandergrift Environmental Science 2026-27Population Growth

Hypotheses, Theories, and Laws Answers

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1
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Read the diagram below. What makes this diagram incorrect?

Question illustration
A
A and D need to be switched.
B
B and C need to be switched.
C
C needs to be changed to “Experimental methods cannot change.”
D
A needs to be changed to “Theories are based on a single experiment.”
2
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What happens when an experiment with new information or new technology produces results that support an existing theory?

A
The theory becomes a law.
B
The theory is considered proven.
C
The theory is revised or updated.
D
The evidence is ignored and thrown away.
3

Keema and Diego go fishing every year at the same lake. This year they notice they are not catching as much fish as they normally do. Keema says to Diego, “I think there are fewer fish than last year because of higher levels of pollution from the power plant that was built down the road last year.”Keema’s statement is

A
a theory.
B
a law.
C
a hypothesis.
D
an observation.
4

“An object at rest will stay at rest and an object in motion will stay in motion at a constant speed and in the same direction, unless acted on by an unbalanced force.”The statement above is Newton’s first

A
hypothesis of motion because it makes a prediction.
B
theory of motion because it is a widely accepted explanation.
C
law of motion because it is a factual statement based on observations.
D
explanation of motion because it is widely accepted and based on observations.
5

“All matter is made up of atoms that are in continuous, random motion.”The statement above is an example of a

A
law because it is a factual statement about how something behaves.
B
theory because it is a well-tested, widely accepted explanation.
C
law because it cannot be modified based on new information.
D
theory because it cannot predict what may happen in the future.
6

Which will most likely result in the revision of a theory?

A
the development of new experimental methods
B
the replication of a well-known experiment
C
the support of several prominent scientists
D
the finding of data that supports the theory
7

Which statement is correct?

A
Theories are accepted as true when a single experiment yields similar results to another one.
B
When a scientist finds a new way to test a hypothesis, experimental methods do not change.
C
Theories may be revised over time as information is discovered or technology is developed.
D
When a scientist finds a new way to test a hypothesis, the original theory is made into a law.
8

Professor Williams wrote some statements on the board:1. Newton observed an apple falling off a tree and speculated that all things on Earth are subject to the force of gravity. 2. He repeatedly tested his idea. 3. He found that any two objects in the universe have a gravitational attraction to each other. 4. His findings cannot be edited or replaced.Professor Williams is discussing

A
a theory.
B
a hypothesis.
C
a law.
D
an explanation.
9

While Sophia was driving to work, she tried to avoid hitting an animal and instead hit a parked car. As the car stopped, her body continued to move forward at the same speed and in the same direction.What happened to Sophia’s body in the car accident is an example of

A
an explanation that combines several hypotheses and observations.
B
a factual statement about how something behaves or functions.
C
an observation that has been confirmed and accepted as true.
D
a possible explanation or answer that is based on prior knowledge.
10

What is a difference between Newton’s laws of motion and Einstein’s theory of relativity?

A
Newton’s laws are factual statements, while the theory of relativity is a statement of opinion.
B
Newton’s laws can predict what happens in the future, but Einstein’s theory of relativity cannot.
C
Newton’s laws explain the observations he made, while the theory of relativity was based on one of Einstein’s hypotheses.
D
Newton’s laws cannot be replaced, but Einstein’s theory can with new information.

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