Pre flashcard Test 3 fall 2024

Front

What is atomic mass?

Back

Atomic mass is the weighted average mass of an atom's isotopes, measured in atomic mass units (amu). It reflects the number of protons and neutrons in the nucleus.

Front

How do you calculate the net loss in glacier ice thickness?

Back

To calculate the net loss in glacier ice thickness, subtract the final thickness from the initial thickness over a specified time period.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It typically involves observation, hypothesis formulation, experimentation, and conclusion.

Front

What is a control group in an experiment?

Back

A control group is a group in an experiment that does not receive the treatment or intervention, allowing for comparison against the experimental group.

Front

What does it mean to zero a scale before weighing?

Back

Zeroing a scale means calibrating it to ensure that it reads zero when there is no weight on it, allowing for accurate measurements.

Front

What is the significance of repeating experiments in scientific research?

Back

Repeating experiments increases the reliability of results and helps confirm that findings are consistent and not due to random chance.

Front

What is the formula for calculating mass?

Back

Mass = Weight / Gravitational Acceleration. In a lab setting, mass is often measured using a balance.

Front

What is the importance of sample size in experiments?

Back

A larger sample size increases the reliability of results and reduces the impact of outliers or anomalies.

Front

What is a bar graph used for?

Back

A bar graph is used to represent categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements and can be counted or measured.