Physics Semester Exam Review Part 1

Front

What does a bullseye with low accuracy and high precision indicate?

Back

It indicates that the measurements are clustered closely together but not near the target value.

Front

How many significant figures are in the number 0.000008?

Back

1 significant figure.

Front

Which measurement is more precise: 4 mL, 4.3 mL, 4.30 mL, or 4.300 mL?

Back

4.300 mL is the most precise measurement.

Front

What is the scientific method?

Back

A series of steps used by scientists to solve a problem or answer a question.

Front

How many significant figures are in 153.0 mL?

Back

4 significant figures.

Front

Define significant figures.

Back

Significant figures are the digits in a number that contribute to its precision.

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 measurements are with each other.

Front

What is the purpose of the scientific method?

Back

To provide a systematic approach for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

What is a controlled experiment?

Back

An experiment where only one variable is changed at a time to isolate the effects of that variable.