Chapter 2 Science Grade 8

Beschreibung

science chapter 2
Rose Helderman
Quiz von Rose Helderman, aktualisiert more than 1 year ago
Rose Helderman
Erstellt von Rose Helderman vor etwa 9 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Scientists measure length, mass, volume, density, temperature and time using SI untis.
Antworten
  • True
  • False

Frage 2

Frage
Length is
Antworten
  • the distance from one point to another
  • the amount of matter in an object
  • measure of the force of gravity acting on an object
  • the amount of space taken up by an object
  • measure of how much mass is contained in a given volume

Frage 3

Frage
The International System of Units (SI) is based off the metric system.
Antworten
  • True
  • False

Frage 4

Frage
The measure of the amount of matter in an object is
Antworten
  • mass
  • volume
  • gravity
  • density
  • weight

Frage 5

Frage
The force of gravity acting on an object is the
Antworten
  • mass
  • volume
  • gravity
  • density
  • weight

Frage 6

Frage
The amount of space taken up by an object or substance is
Antworten
  • mass
  • volume
  • gravity
  • density
  • weight

Frage 7

Frage
SI stands for
Antworten
  • International Scientific Units
  • International System of Units
  • International System of Science
  • International House of Science

Frage 8

Frage
Which of the following is a standard system based on 10
Antworten
  • miles
  • yards
  • metric
  • volume

Frage 9

Frage
The basic SI unit for measuring weight is a measure of force called
Antworten
  • newton
  • pound
  • ton
  • kilogram

Frage 10

Frage
Weight changes when
Antworten
  • gravity changes
  • with different scales
  • the type of measurement system you use
  • it never changes

Frage 11

Frage
The curve of the liquid in which you use to take a measurement
Antworten
  • SI
  • metric system
  • meniscus
  • graduated cylinder

Frage 12

Frage
How would you measure the volume of an irregular shaped object
Antworten
  • with a ruler
  • displacement of water
  • on a scale
  • by carefully studying it

Frage 13

Frage
The basic SI unit for measuring volume is the
Antworten
  • cubic meter
  • newton
  • kilogram
  • yard

Frage 14

Frage
The measure of how much mass is contained in a given volume is
Antworten
  • mass
  • volume
  • gravity
  • density
  • weight

Frage 15

Frage
The official SI unit for temperature is the
Antworten
  • nweton
  • kelvin
  • second
  • kilogram

Frage 16

Frage
When collecting data, scientists use math skills that include all of the following except
Antworten
  • precision
  • significant figures
  • accuracy
  • percent error
  • estimation

Frage 17

Frage
The approximation of a number based on reasonable assumptions
Antworten
  • estimates
  • accuracy
  • precision
  • significant figures

Frage 18

Frage
Estimates are useful when
Antworten
  • it is easy to count each individual or object
  • when a person isn't good at counting
  • when it is impossible to count every individual or object
  • when you don't have enough time to count every individual object

Frage 19

Frage
Measurements are never completely precise.
Antworten
  • True
  • False

Frage 20

Frage
The numerical average of a set of data
Antworten
  • mean
  • mode
  • median
  • range
  • percent error

Frage 21

Frage
The middle number in an ordered set of data
Antworten
  • mean
  • mode
  • median
  • range
  • percent error

Frage 22

Frage
The number that appears most often in a list of numbers
Antworten
  • mean
  • mode
  • median
  • range
  • percent error

Frage 23

Frage
The difference between the greatest value in the set and the least value
Antworten
  • mean
  • mode
  • median
  • range
  • percent error

Frage 24

Frage
Humans or equipment error can produce data that does not fit with the data set. What is this data called?
Antworten
  • reasonable data
  • scientific data
  • anomalous data
  • specific data

Frage 25

Frage
The percent difference between the known value of a substance and its measured value is called
Antworten
  • mode
  • median
  • range
  • weight
  • percent error

Frage 26

Frage
A picture of your data is called
Antworten
  • accuracy
  • estimation
  • graph
  • model

Frage 27

Frage
The following are the ages of people in the room. 36 36 37 37 39 40 41 What is the mode?
Antworten
  • 36
  • 37
  • 39, 40 and 41
  • 36 and 37

Frage 28

Frage
Scientists use graphs to identify trends, make predictions, and recognize anomalous, or inconsistent data.
Antworten
  • True
  • False

Frage 29

Frage
Look at the graph on the page mom has. What type of graph is this?
Antworten
  • linear graph
  • non linear graph
  • pie graph
  • line graph

Frage 30

Frage
3 gerbils weigh 20 grams. How many millograms would the three gerbils weigh?
Antworten
  • 200 mg
  • 2,000 mg
  • 20,000 mg
  • 200,000 mg

Frage 31

Frage
A graph that shows data points in a straight line is called a
Antworten
  • linear graph
  • non linear graph

Frage 32

Frage
A graph in which the points do not fall in a straight line are called
Antworten
  • linear graph
  • non linear graph

Frage 33

Frage
A point that is not part of the trend is an anomalous data point called an outlier.
Antworten
  • True
  • False

Frage 34

Frage
an approximation of a number based on reasonable assumptions
Antworten
  • estimate
  • significant figures
  • precision
  • accuracy
  • percent error

Frage 35

Frage
refers to how close a group of measurements are to each other
Antworten
  • estimate
  • significant figures
  • precision
  • accuracy
  • percent error

Frage 36

Frage
communicate how precise measurements are and includes all digits measured exactly, plus one estimated digit
Antworten
  • estimate
  • significant figures
  • precision
  • accuracy
  • percent error

Frage 37

Frage
refers to how close the measurement is to the true or accepted value
Antworten
  • estimate
  • significant figures
  • precision
  • accuracy
  • percent error

Frage 38

Frage
Data that does not fit with the data set is called
Antworten
  • scientific data
  • reasonable data
  • anomalous data
  • specific data

Frage 39

Frage
Cheryl took 7 math tests in one marking period. What is the range of her test scores? 89, 73, 84, 91, 87, 77, 94
Antworten
  • 91
  • 5
  • 85
  • 21

Frage 40

Frage
Scientists use plans to test their ideas about things they cannot observe directly
Antworten
  • True
  • False

Frage 41

Frage
Scientists build __________ to represent a process. They test whether the input and output from the model match the input and output of the system in the natural world.
Antworten
  • map
  • graph
  • model
  • significant figures

Frage 42

Frage
Anomalous data shows on a graph as a(n)
Antworten
  • nonlinear graph
  • trend
  • outlier
  • linear graph
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