Physical Science Fall 2024 Final

Front

What is the octet rule in chemistry?

Back

The octet rule states that atoms tend to gain, lose, or share electrons in order to have eight electrons in their valence shell, achieving a stable electron configuration.

Front

Which element typically does not follow the octet rule?

Back

Hydrogen typically does not follow the octet rule as it can only hold two electrons in its outer shell.

Front

What does it mean for a measurement to be accurate?

Back

A measurement is accurate if it is close to the true value.

Front

What is the scientific method?

Back

The scientific method is a systematic process used by scientists to test hypotheses through observation, experimentation, and analysis.

Front

How do scientists test a hypothesis?

Back

Scientists test a hypothesis by conducting experiments.

Front

What is speed in physics?

Back

Speed is the distance traveled per unit of time, calculated as speed = distance/time.

Front

Calculate the speed if Kendra moves 10.7 m in 26.8 s.

Back

Speed = 10.7 m / 26.8 s = 0.4 m/s.

Front

What is physical science?

Back

Physical science is the study of matter and energy, and the relationship between them.

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision, including all non-zero digits, zeros between significant digits, and trailing zeros in the decimal part.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent repeated measurements are.