Questão 1
Questão
Scientists measure length, mass, volume, density, temperature and time using SI untis.
Questão 2
Responda
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the distance from one point to another
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the amount of matter in an object
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measure of the force of gravity acting on an object
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the amount of space taken up by an object
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measure of how much mass is contained in a given volume
Questão 3
Questão
The International System of Units (SI) is based off the metric system.
Questão 4
Questão
The measure of the amount of matter in an object is
Responda
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mass
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volume
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gravity
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density
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weight
Questão 5
Questão
The force of gravity acting on an object is the
Responda
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mass
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volume
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gravity
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density
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weight
Questão 6
Questão
The amount of space taken up by an object or substance is
Responda
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mass
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volume
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gravity
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density
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weight
Questão 7
Responda
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International Scientific Units
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International System of Units
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International System of Science
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International House of Science
Questão 8
Questão
Which of the following is a standard system based on 10
Responda
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miles
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yards
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metric
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volume
Questão 9
Questão
The basic SI unit for measuring weight is a measure of force called
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newton
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pound
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ton
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kilogram
Questão 10
Questão
Weight changes when
Questão 11
Questão
The curve of the liquid in which you use to take a measurement
Responda
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SI
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metric system
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meniscus
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graduated cylinder
Questão 12
Questão
How would you measure the volume of an irregular shaped object
Responda
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with a ruler
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displacement of water
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on a scale
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by carefully studying it
Questão 13
Questão
The basic SI unit for measuring volume is the
Responda
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cubic meter
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newton
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kilogram
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yard
Questão 14
Questão
The measure of how much mass is contained in a given volume is
Responda
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mass
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volume
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gravity
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density
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weight
Questão 15
Questão
The official SI unit for temperature is the
Responda
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nweton
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kelvin
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second
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kilogram
Questão 16
Questão
When collecting data, scientists use math skills that include all of the following except
Responda
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precision
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significant figures
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accuracy
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percent error
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estimation
Questão 17
Questão
The approximation of a number based on reasonable assumptions
Responda
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estimates
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accuracy
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precision
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significant figures
Questão 18
Questão
Estimates are useful when
Responda
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it is easy to count each individual or object
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when a person isn't good at counting
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when it is impossible to count every individual or object
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when you don't have enough time to count every individual object
Questão 19
Questão
Measurements are never completely precise.
Questão 20
Questão
The numerical average of a set of data
Responda
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mean
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mode
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median
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range
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percent error
Questão 21
Questão
The middle number in an ordered set of data
Responda
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mean
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mode
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median
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range
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percent error
Questão 22
Questão
The number that appears most often in a list of numbers
Responda
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mean
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mode
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median
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range
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percent error
Questão 23
Questão
The difference between the greatest value in the set and the least value
Responda
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mean
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mode
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median
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range
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percent error
Questão 24
Questão
Humans or equipment error can produce data that does not fit with the data set. What is this data called?
Responda
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reasonable data
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scientific data
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anomalous data
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specific data
Questão 25
Questão
The percent difference between the known value of a substance and its measured value is called
Responda
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mode
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median
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range
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weight
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percent error
Questão 26
Questão
A picture of your data is called
Responda
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accuracy
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estimation
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graph
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model
Questão 27
Questão
The following are the ages of people in the room.
36 36 37 37 39 40 41
What is the mode?
Responda
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36
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37
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39, 40 and 41
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36 and 37
Questão 28
Questão
Scientists use graphs to identify trends, make predictions, and recognize anomalous, or inconsistent data.
Questão 29
Questão
Look at the graph on the page mom has. What type of graph is this?
Responda
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linear graph
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non linear graph
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pie graph
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line graph
Questão 30
Questão
3 gerbils weigh 20 grams. How many millograms would the three gerbils weigh?
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200 mg
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2,000 mg
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20,000 mg
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200,000 mg
Questão 31
Questão
A graph that shows data points in a straight line is called a
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linear graph
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non linear graph
Questão 32
Questão
A graph in which the points do not fall in a straight line are called
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linear graph
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non linear graph
Questão 33
Questão
A point that is not part of the trend is an anomalous data point called an outlier.
Questão 34
Questão
an approximation of a number based on reasonable assumptions
Responda
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estimate
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significant figures
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precision
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accuracy
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percent error
Questão 35
Questão
refers to how close a group of measurements are to each other
Responda
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estimate
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significant figures
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precision
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accuracy
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percent error
Questão 36
Questão
communicate how precise measurements are and includes all digits measured exactly, plus one estimated digit
Responda
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estimate
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significant figures
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precision
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accuracy
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percent error
Questão 37
Questão
refers to how close the measurement is to the true or accepted value
Responda
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estimate
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significant figures
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precision
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accuracy
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percent error
Questão 38
Questão
Data that does not fit with the data set is called
Responda
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scientific data
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reasonable data
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anomalous data
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specific data
Questão 39
Questão
Cheryl took 7 math tests in one marking period. What is the range of her test scores?
89, 73, 84, 91, 87, 77, 94
Questão 40
Questão
Scientists use plans to test their ideas about things they cannot observe directly
Questão 41
Questão
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.
Responda
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map
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graph
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model
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significant figures
Questão 42
Questão
Anomalous data shows on a graph as a(n)
Responda
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nonlinear graph
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trend
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outlier
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linear graph