Identify Basic Scientific Measurements Using Laboratory Tools Flashcards

(38 cards)

1
Q

Scientists use what system to measure and record data?

A

Metric System or Systeme Internationale (SI)

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2
Q

This system uses ___ ___ and ___ to increase or decrease size

A

Base Units, Prefixes

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3
Q

The SI Base units for Mass, Length, and Time are:

A

Kilogram, Meter, and Second, Respectively

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4
Q

___ units are also used to measure Volume

A

SI

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5
Q

The Volume of a three-dimensional object has:

A

Length, Width, and Height are of which are measured in length units

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6
Q

The SI base unit for Volume is more familiarly called a:

A

Liter

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7
Q

The SI system also uses ___ to indicate the size of units

A

Prefixes

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8
Q

The prefix “Kilo” means:

A

1,000 so 1 kilometer is 1,000 meters

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9
Q

The prefix “Centi” means:

A

0.01, so 1 centimeter is 0.01 meters

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10
Q

The prefix “Hecta” means:

A

100

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11
Q

The prefix “Deca” means:

A

10

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12
Q

The prefix “Deci” means:

A

0.1

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13
Q

The prefix “Milli” means:

A

0.001

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14
Q

Length is typically measured with a:

A

Ruler or meterstick

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15
Q

Length is:

A

The distance from end to end of an object and is used to describe width, height, and length

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16
Q

Be sure to always start measuring length from the ___ point on your measuring tool

17
Q

How is Volume measured?

A

In different ways, depending on the state of matter

18
Q

What is Volume?

A

The amount of space an object takes up

19
Q

The Volume of Solids can be calculated by:

The Sides can be measured using:

A

Multiplying the measurements of length, width, and height

Rulers or Metersticks

20
Q

Several types of glassware can be used to measure the ___ of liquids

21
Q

The most accurate tool in measuring Large Volumes is:

A

A Volumetric Flask

22
Q

The most accurate tool in measuring Small Volumes is:

A

A Volumetric Pipette

23
Q

Graduated Cylinders can also be used to measure a range of ___ in the laboratory, but they are less accurate than ___ ___ or ___

A

Volumes, Volumetric Flasks, Pipettes

24
Q

Liquids form a ___ in a measuring tool

25
What is a Meniscus?
The curve formed at the top of a liquid in response to its container
26
The Meniscus Curve can be:
Upward (Concave), Downward (Convex), or Flat, depending on the properties of the liquid and the container
27
When measuring the Volume of a liquid, make sure that the line you are reading is:
Even with the center of the Meniscus
28
What are used to measure the Mass of an object?
Balances
29
What is Mass?
The amount of Matter in an object
30
What are the 2 types of Balances used to measure Mass?
The Triple-Beam Balance and Electronic Balance
31
What measurement of Mass is the most common? Why?
Electronic Balance because it is easier to use
32
Large items with a large Mass would likely be measured using:
Kilograms (kg)
33
It is more efficient to say a person has a mass of 75 ___ than to say a person has a mass of 75,000 ___
kg, grams
34
Measuring a few drops of water makes more sense in ___ than in Liters
Milliliters
35
For Length, small things like insects and fingernails should be measured in:
Millimeters
36
Objects like the width of a piece of paper can be measured in:
Centimeters
37
The height of a door or a ceiling should be measured in:
Meters
38
The distance between two towns can be measured in:
Kilometers