PS Physics Midterm: Cumulative

Front

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

Back

independent variable

Answer explanation

Yes!

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

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

In an experiment where a scientist is examining the growth rate of a plant responding to plant food, which is the independent variable?

Back

The plant food

Front

In an experiment where a scientist is examining the growth rate of a plant responding to plant food, which is the dependent variable?

Back

The height of the plant

Front

Which of the following is true about a scientific theory? Options: a scientific theory is an explanation, scientific theories will eventually become scientific laws, scientific theories are not supported by evidence, scientific theories are usually rejected because they are only theories

Back

a scientific theory is an explanation

Front

Which choice is an independent variable? Options: measuring the distance a student can jump in meters, counting the number of ants in population, measuring the lengths of students' hair, providing different levels of sunlight to plants in an experiment

Back

providing different levels of sunlight to plants in an experiment