Foundations Unit 1 Test

Which part of an experiment is the factor you change on purpose?

• Dependent variable

• Independent variable

• Constant

• Control

Which part of an experiment is measured as the outcome?

• Independent variable

• Dependent variable

• Control

• Hypothesis

Tags

NGSS.MS-PS1-2

Why are controls important in an experiment?

• They keep the test fair

• They change with the independent variable

• They are optional

• They make results random

A student measures the same liquid three times and records 45.1 mL, 45.0 mL, and 45.2 mL. These measurements are:

• Inaccurate and not precise

• Accurate and precise

• Precise but not accurate

• Accurate but not precise

What tool would be best for measuring the temperature of liquid in the Yeti Cup project?

• Ruler

• Thermometer

• Balance

• Stopwatch

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If you forget to start the stopwatch at the beginning of your trial, what type of error is this?

• Tool error

• Human error

• Random error

• No error

Which type of error is harder to avoid?

• Human error

• Tool error

• Both equally

• Neither

What is the purpose of repeating an experiment several times?

• To waste materials

• To find different answers

• To increase reliability

• To make it harder

Tags

NGSS.MS-PS2-5

Why do scientists often graph their data?

• It looks better

• Graphs show patterns and trends

• Graphs replace data tables

• Graphs eliminate error

Tags

NGSS.MS-PS3-1

On a line graph, which axis usually represents time?

• X-axis

• Y-axis

• Title

• Legend