Savvas 7th Grade Chapter 2 Using Mathematics in Science

Last updated almost 3 years ago

37 questions

1

3

2

4

Library

Savvas 7th Grade Chapter 2 Using Mathematics in Science

Last updated almost 3 years ago

37 questions

1

Scientists often rely on a(n) _______ when they cannot obtain an exact number.

1

When you multiply measurements, the answer should only have the same number of significant figures as the measurement with the _______ significant figures.

1

 A reliable measurement is both _______ and precise.

1

The significant figures in a measurement include all digits measured exactly, plus one_______ digit.

1

3

Use the graph to predict the boiling time of water that has a volume greater than 2,000 milliliters.

2

Tell me how mass and weight are alike and how they are different.

4

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

On what number is the metric system based?

0

1

10

100

Which is a common unit of density?

g

g/ml

cm3

g/s

What would you be most likely to measure by immersing an object in water and seeing how much the water level rises?

the mass of a rectangular solid

the mass of a irregular solid

the volume of a rectangular solid

the volume of a irregular solid

Which of the following is the middle number in a set of data?

mean

median

mode 

range

A low percent error indicates that the result you obtained is

accurate

inaccurate

estimate 

anomalous data

Which term refers to how close a group of measurements are to each other?

estimate

accuracy

percent error

precision

On which of the following graphs do data points yield a straight line?

Non-Linear

Linear

Bar

On a nonlinear graph, the data points are never which of the following?

Along a curved line

Along a straight line

Exactly on a graph line

A line graph is used when which of the following is true?

An independent variable is continuous

No variable is continuous

An independent variable is not continuous

When doing a science investigation, what should be your chief concern?

 your own safety

 your classmates’ safety

both your safety as well as your classmates

Weight is a measure of how much mass is contained in a given volume.

True

False

The basic unit for measuring volume is the kilogram.

True

False

On the Kelvin scale, water freezes at 0°C and boils at 100°C.

True

False

An object’s temperature is the amount of space it takes up

True

False

Scientists control changes in the responding (dependent) variable.

True

False

To help you see what the data from an experiment mean, you could use a(n) graph.

True

False

A point that does not fall exactly on a graph line is a(n) anomalous data point.

True

False

Line graphs display data that show how the dependent variable changes in response to the independent variable

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

Scientists often rely on a(n) _______ when they cannot obtain an exact number.

When you multiply measurements, the answer should only have the same number of significant figures as the measurement with the _______ significant figures.

 A reliable measurement is both _______ and precise.

The significant figures in a measurement include all digits measured exactly, plus one_______ digit.

Which of the following shows the mean with the correct number of significant figures for the numbers 15.6, 14.1, 7.7, 12.9, 12.9?

12

12.6

12.64

12.7

All systems have input, ___________________, and output.

process 

model

system

A(n) ___________________ model might include a drawing or a three-dimensional object.

Mathematical equation

Physical 

Process

___________________ is the material or energy that goes into a system.

Input

Process

Output

Output that changes a system in some way is called __________________.

input

Feedback

Systems

A Field is defined as :

a beach 

a park

anywhere outside a science laboratory

Which of the following are you least likely to see represented by a safety symbol in the procedures of an investigation?

flames

lab apron

time

When an accident occurs, the first person you should tell is any adult not your teacher.

True

False

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

Scientists use models to understand things they can observe directly.

True

False

Use the graph to predict the boiling time of water that has a volume greater than 2,000 milliliters.

Tell me how mass and weight are alike and how they are different.

Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs

On what number is the metric system based?

0

1

10

100

Which is a common unit of density?

g

g/ml

cm3

g/s

What would you be most likely to measure by immersing an object in water and seeing how much the water level rises?

the mass of a rectangular solid

the mass of a irregular solid

the volume of a rectangular solid

the volume of a irregular solid

Which of the following is the middle number in a set of data?

mean

median

mode 

range

 A low percent error indicates that the result you obtained is 

accurate

inaccurate

estimate 

anomalous data

 Which term refers to how close a group of measurements are to each other?

estimate

accuracy

percent error

precision

On which of the following graphs do data points yield a straight line? 

Non-Linear

Linear

Bar

On a nonlinear graph, the data points are never which of the following?

Along a curved line

Along a straight line

Exactly on a graph line

A line graph is used when which of the following is true?

An independent variable is continuous

No variable is continuous

An independent variable is not continuous

When doing a science investigation, what should be your chief concern?

 your own safety

 your classmates’ safety

both your safety as well as your classmates

Weight is a measure of how much mass is contained in a given volume.

True

False

The basic unit for measuring volume is the kilogram.

True

False

On the Kelvin scale, water freezes at 0°C and boils at 100°C.

True

False

 An object’s temperature is the amount of space it takes up

True

False

Scientists control changes in the responding (dependent) variable.

True

False

To help you see what the data from an experiment mean, you could use a(n) graph.

True

False

A point that does not fall exactly on a graph line is a(n) anomalous data point.

True

False

Line graphs display data that show how the dependent variable changes in response to the independent variable

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

 Which of the following shows the mean with the correct number of significant figures for the numbers 15.6, 14.1,  7.7,  12.9,  12.9? 

12

12.6

12.64

12.7

  All systems have input, ___________________, and output.

process 

model

system

 A(n) ___________________ model might include a drawing or a three-dimensional object.

Mathematical equation

Physical 

Process

   	___________________ is the material or energy that goes into a system.

Input

Process

Output

Output that changes a system in some way is called __________________.

input

Feedback

Systems

A Field is defined as : 

a beach 

a park

anywhere outside a science laboratory

Which of the following are you least likely to see represented by a safety symbol in the procedures of an investigation?

flames

lab apron

time

 When an accident occurs, the first person you should tell is any adult not your teacher. 

True

False

Safety symbols are pictures that alert you to possible sources of accidents in an investigation.

True

False

Doing good preparation ahead of time helps you stay safe during science investigations.

True

False

Scientists use models to understand things they can observe directly.

True

False