Physics 105 Flashcard 1: Science, Fundamental Forces, Matter

Front

In an experiment, the one variable that is changed by the scientist is called the ______.

Back

independent variable

Front

In an experiment, the factor that we observe and/or measure is called the ____.

Back

dependent variable

Front

A testable, possible explanation for a scientific question is called a(n) _____.

Back

hypothesis

Front

Observations that are made with instruments such as rulers, balances, graduated cylinders, thermometers, timers, etc. and are measurable.

Back

quantitative

Answer explanation

To quantify is to measure.

Front

A scientist studies how many days it takes people to get sick when eating different candies. What is the independent variable?

Back

candies

Front

A scientist studies how many days it takes people to get sick when eating different candies. What is the dependent variable?

Back

days until sick

Front

Which subatomic particle has a mass of 0.00055 AMU, a negative charge, and is located outside of the nucleus?

Back

Electrons

Front

Which subatomic particle has a mass of 1 AMU, a neutral charge, and is located inside the nucleus?

Back

Neutrons

Front

Which subatomic particle has a mass of 0.99 AMU, a positive charge, and is located inside the nucleus?

Back

Protons

Front

What characteristic is the most important information to know when trying to determine an element’s identity?

Back

Protons

Answer explanation

The protons define the element!