MS Physical Science Unit 2 Wrap-Up

MS Physical Science 2.4: Unit 2 Wrap-Up

by Amie Ojerio

​2.1 - Using Models

• ​Identify the uses for and benefit of scientific models.

• ​Use a scale model to estimate distance and quantity

• ​Evaluate scientific models by identifying their limitations.

​Key Terms

• ​model

• ​quantity

• ​ratio

• ​scale model

Multiple Choice

What kind of model is shown?

• Mathematical

• Computer

• Physical

• Conceptual

Multiple Choice

A 3-D model of a human brain is an example of what type of model?

• Conceptual

• Physical

• Mathematical

• Computer

Multiple Choice

Two students make a model of a tree house they want to build. The scale is 1:25. In the scale model, the tree house door is 5 cm tall. How tall should the real tree house door be?

• 0.2 cm

• 5 cm

• 125 cm

• 25 cm

Multiple Choice

A student builds a model of a car. The scale is 1:10. In real life, the car door is 30 inches long. How long is the car door in the model?

• 10 inches

• 30 inches

• 0.3 inches

• 3 inches

Multiple Choice

Which problem does this model of a bacteria solve?

• Real-life bacteria are too dangerous for students to handle.

• Real-life bacteria are too small to see with unaided eyes.

• Real-life bacteria are too rare for students to handle.

• Real-life bacteria are too large to fit in a test tube.

​2.2 - Tools & Measurement

• ​Identify appropriate tools and SI units for collecting, recording, and analyzing both quantitative and qualitative data.

• Record precise and approximate measurements

• Use scientific notation for very small and very large numbers.

​Key Terms

• accurate

• ​approximate

• ​Celsius

• ​International System of Units

• ​kelvin

• ​kilogram

• ​liter

• ​meter

• ​precise

• ​prefix

• ​quantity

• scientific notation

• unit

Multiple Choice

Which SI Unit is most appropriate for measuring area?

• grams per cubic centimeter:  $$\frac{g}{cm^3}$$  

• Kiloliters: kL

• Liters per cubic centimeter:  $$\frac{L}{cm^3}$$  

• Square meters: $$m^2$$  

Multiple Choice

Which tool could allow you to see the details of a plant cell?

• Microscope

• Journal

• Electronic balance

• Telescope

Multiple Choice

Each X shows the location of an archer's arrow on a bull's eye target. The archer was aiming for the center circle. Look at the picture and determine which words best describe the archer's results.

• Low precision, high accuracy

• Low precision, low accuracy

• High precision, low accuracy

• High precision, high accuracy

Multiple Choice

The volume of a sample of water is measured three times. The true volume of the sample of water is 18 mL. Which group of measurements is the most precise?

• 17.9 mL, 19.1 mL, 21.0 mL

• 18.5 mL, 18.0 mL, 17.8 mL

• 19.1 mL, 19.0 mL, 17.0 mL

• 20.0 mL, 20.1 mL, 19.9 mL

Multiple Choice

The mass of a particular bacteria is estimated to be 0.000000987 mg. What is the mass of the bacteria in scientific notation?

• $$9.87\ x\ 10^7\ mg$$  

• $$9.87\ x\ 10^{-7}\ mg$$  

• $$987\ x\ 10^{-9}\ mg$$  

• $$98.7\ x\ 10^{-8}\ mg$$  

​2.3 - Displaying and Interpreting Data

• Describe tools used for summarizing, displaying, and interpreting scientific data.

• ​Identify patterns in data.

• ​Use statistic to summarize and analyze data.

​Key Terms

• analyze

• ​central tendency

• ​chart

• ​circle graph

• ​continuous data

• ​data

• ​data points

• ​dependent variable

• ​discrete data

• ​error

• ​frequency distribution

• graph

• histogram

• ​line graph

• ​line of best fit

• ​mean

• ​median

• ​ mode

• ​qualitative data

• ​quantitative data

• ​Statistics

• ​Scatterplot

• ​Table

Multiple Choice

A student records the feather colors and beak shapes of every bird observed in a park. Which kind of data is the student recording?

• Empirical

• Quantitative

• Theoretical

• Qualititave

Multiple Choice

Which statement best describes a circle graph?

• It shows data as a percentage of a whole

• It shows data points connected by a single line.

• It shows how frequently an event occurs

• It shows a line passing through scattered data points.

Multiple Select

What THREE types of things do you look for when you analyze and interpret data?

• Possible errors

• Neatness

• Inconsistencies

• Trends

Multiple Choice

What are the three measures of central tendency?

• Mean, Median, and Mode

• Tables, charts, diagrams

• Circle graphs, line graphs, scatter plots

• Discrete, continuous, qualitative

Multiple Choice

What is the median for the following set of data:

3, 5, 7, 8, 8, 9

• 8

• 6.7

• 6

• 7.5