making good measurments Flashcards

1
Q

Write number in _

A

Decimals

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2
Q

Always round to the _ place

A

Hundredth

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3
Q

Name the equipment you use for precisely measureing the volume of liquids

A

Graduated cylinder

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4
Q

Equipment used for less precise measuring or heating of liquids

A

Beaker

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5
Q

Place gc on_

A

Flat surface

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6
Q

Get_ when reading it

A

Eyelevel

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7
Q

Only read the _

A

Meniscus

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8
Q

the unit of measurment for volume of liquid is

A

liter

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9
Q

most graduated cylinders measure in

A

mililiters

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10
Q

the very first thing you do when getting any scale is to

A

calibrate it

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11
Q

the riders are actually the

A

weights

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12
Q

adjust each rider so that each arm points to

A

zero

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13
Q

_ the values of the arms together to get the pbjects mass

A

add

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14
Q

whats the difference between mass and weight

A

mass is the amount of matter in an object, always constant, weight is a measure of gravitational force on an object varied depending on where the object is in relation to the earth

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15
Q

never measure starting with the end of a ruler give 2 reasons

A
  1. measurement might not start with an actual line of measurement
  2. maybe end of ruler is not straight or smooth or could be uneven
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16
Q

Always write a _ after the number

17
Q

3 metric units for measurment w/ a ruler

A

Meter, mm, cm

18
Q

What is the best way to top off a liquid measurement

19
Q

3 USA units for ruler

A

Inches feet yards

20
Q

Are all graduated cylinder scored with same scale

21
Q

3 metric for gc

A

Liter mililiter cubic liter

22
Q

3 USA units for gc

A

Gallon cup Quartz

23
Q

3 metric for scale

A

Gram kilogram milligram

24
Q

3 USA scale

A

Ounce pound ton

25
Why important to calibrate scale before use
Because then the weight will start at zero instead of 1.5 or 3 grams
26
Proper way to store any scale
Immobilize the tray don't want tray to move might break tray is measuring device
27
Proper way to store 3 beam balance
Riders on the right lock under tray
28
Water boils and freezes
32F 212F | 0C 100C
29
Human body temp
98F 37C
30
Wait before reading temp on thermometer
Takes a while for alcohol to rise or sink
31
Why need know Room temp
The main template re or ur base temp
32
Why important to always take starting tempature
So you know what to base the rest of your temps off of, so u know ur base temp
33
If you hold thermometer with bulb in your hand what happens
Thermometer goes to you body heat
34
Ms based on powers of
10
35
Why metric easier to use
Easier to convert with base of ten
36
What 3 countries use USE system
USA mymanmar Liberia
37
Why important to know metric in science or egineering
If you what to trade or are working with other countries you might need to know all of them
38
Celsius?
Anders Celsius divided the Celsius scale; said it was only sensible to base off metric system; powers of ten