Chapter 2 Science Grade 8

Rose Helderman
Quiz by Rose Helderman, updated more than 1 year ago
Rose Helderman
Created by Rose Helderman over 5 years ago
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Description

science chapter 2

Resource summary

Question 1

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

Question 2

Question
Length is
Answer
  • 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

Question 3

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

Question 4

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

Question 5

Question
The force of gravity acting on an object is the
Answer
  • mass
  • volume
  • gravity
  • density
  • weight

Question 6

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

Question 7

Question
SI stands for
Answer
  • International Scientific Units
  • International System of Units
  • International System of Science
  • International House of Science

Question 8

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

Question 9

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

Question 10

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

Question 11

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

Question 12

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

Question 13

Question
The basic SI unit for measuring volume is the
Answer
  • cubic meter
  • newton
  • kilogram
  • yard

Question 14

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

Question 15

Question
The official SI unit for temperature is the
Answer
  • nweton
  • kelvin
  • second
  • kilogram

Question 16

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

Question 17

Question
The approximation of a number based on reasonable assumptions
Answer
  • estimates
  • accuracy
  • precision
  • significant figures

Question 18

Question
Estimates are useful when
Answer
  • 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

Question 19

Question
Measurements are never completely precise.
Answer
  • True
  • False

Question 20

Question
The numerical average of a set of data
Answer
  • mean
  • mode
  • median
  • range
  • percent error

Question 21

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

Question 22

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

Question 23

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

Question 24

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

Question 25

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

Question 26

Question
A picture of your data is called
Answer
  • accuracy
  • estimation
  • graph
  • model

Question 27

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

Question 28

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

Question 29

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

Question 30

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

Question 31

Question
A graph that shows data points in a straight line is called a
Answer
  • linear graph
  • non linear graph

Question 32

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

Question 33

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

Question 34

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

Question 35

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

Question 36

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

Question 37

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

Question 38

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

Question 39

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

Question 40

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

Question 41

Question
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.
Answer
  • map
  • graph
  • model
  • significant figures

Question 42

Question
Anomalous data shows on a graph as a(n)
Answer
  • nonlinear graph
  • trend
  • outlier
  • linear graph
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