MEASUREMENTS OF LENGTH, AREAS, SPEED AND TIME Flashcards

1
Q

is an integral part of Physics like any other scientific subject. an integral part of human race, without it there will be no trade, no statistics

A

Measurement

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2
Q

are used to measure. One would know a simple ruler or tape could be
used to measure small distances, your height, and possibly much more. In Physics, we
do have certain scales for certain quantities which we will see very shortly.

A

Scales

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3
Q

Length, Mass and Time. The current system of units has three standard units:
The meter, kilogram, and second.

A

the metric

system

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4
Q

is a gauge that measures and displays the
instantaneous. Thus, an increase in the speed of the car will twist the cup
and pointer against the spring.

A

Speedometer

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5
Q

measure the speed of a car by being linked mechanically
with the gearbox output shaft . Since this shaft lies ‘downstream’ of the gear box, the
speed with which it rotates is independent of gear changes and so gives a true measure
of the road speed.

A

Mechanical speedometers

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6
Q

are the most often used length measurement tool that we find in offices, schools,
and home. It can measure objects up to 30 centimeters with sufficient precision 1
millimeter. In schools, children draw squares, rectangles, triangles, etc. by using this
stuff. There are two kinds of rulers based on the material that made it: plastic rulers and
metal rulers

A

Rulers

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7
Q

Its length is generally 1 meter

A

Yardstick or Meter Stick

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8
Q

is a portable compact flexible ruler that can be rolled up and pull out.
This is an important tool to measure a length of more than 1 meter and up to 25 feet. In
some cases, a tape measure for surveyors is able to quantify distance up to 100 feet

A

Tape Measure

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9
Q

types of tape measure

A

sewing tape measure, retractable tape

measure, and surveying tape measure

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10
Q

is a linear measurement tool that is by means of not touching the object
physically; not like a tape measure that we need to stick out the blade onto the surface
of something we are going to measure. Having that said, our work is highly simplified,
becomes easier and faster

A

Laser Measure

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11
Q

A made-of-steel block that can be used for calibrating a linear (length, width, and
depth/height) measuring instrument. If you are going to calibrate rulers, tape measures,
calipers, and micrometers,

A

Block Gauge

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12
Q

In case you are going to observe a small object’s diameter with high accuracy and
precision, you need this tool. can measure with precision until 0.01 millimeters.
You can perform outside and inside and even depth measurement with this measuring
instrument.

A

Caliper

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13
Q

is intended for more accuracy and precision
measurement. If you are not satisfied yet with the accuracy of the caliper, then turn to
this one. You need to remember that it can only support one type of measurement.
There cannot be done three types of measurements in one tool with this like the caliper.

A

. Micrometer

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14
Q

You are a surveyor that wants to measure the distance of two separated points on open
land, we utilize its wheel diameter
for the measurement.

A

Wheel Measure

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15
Q

The same concept is also implemented tofunctions to measure distance using a wheel. is always found in vehicles. It’s designed to measure how far the vehicle has passed through.

A

Odometer

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16
Q

is the friend of hunters, navigator, and also for a military purpose. If you
are going to measure a long distance from your position to a specific point you are
targeting, then you need this one. One incredible benefit of it is the ability
ranging from a far-away target without contacting it.

A

Rangefinder

17
Q

It’s designed to measure the gap thickness accurately. All you have to do is
inserting one of the blades to the gap you are going to measure. Try one by one until
you think it’s the right thickness. In the case of measuring gaps, you must use the best
feeler gauge. If the blade thickness is inaccurate or the material is easy to rust, the
measurement can be misleading.

A

Feeler Gauge

18
Q

is
commonly applied to car paint. By means of this tool, the condition of the car can be
evaluated.

A

Paint Thickness Gauge

19
Q

is actually a depth gauge. But it has some modifications to match the need for
measuring the depth of tire tread. Therefore, the maximum range of tire tread depth
gauge is no more than 1 inch. It’s a simple, small, yet important tool to have in your
vehicle storage.

A

Tire Tread Depth Gauge

20
Q

measure the engine speed in revolutions per minute (rpm). This
instrument determines the rotational speed (how fast it’s spinning) of a shaft or disk in
the engine and displays the reading on a calibrated analog dial display on the
dashboard of a car, aircraft or other vehicle.

A

Tachometers

21
Q

measure the traveling speed of land vehicles. They are used to help
drivers determine their driving speed and maintain it at save and realistic levels. These
meters use magnets and a set of rotating cables connected to the transmission to
determine the rate of travel, which is shown on an analog display on the vehicle’s
dashboard.

A

Speedometers

22
Q

measure the rates of acceleration and deceleration of a vehicle to
determine whether the drive train and braking systems are functioning correctly. This
instrument has been used to show a vehicle’s engine power by demonstrating how fast
that car or truck can get from 0 to 60 mph. T

A

Accelerometers

23
Q

uses the Doppler effect, which bounces
sound waves off moving vehicles, then calculates the sound wave frequency as the
return to the instrument. Soundwave frequency increases the closer the vehicle is to the
instrument, and decreases as the distance between the vehicle and radar gun get
wider.

A

RADAR

24
Q

aims an infrared light beam toward a vehicle and measures how long it takes for the
light waves to reflect back. The light pulses have the advantage of traveling at the
speed of light instead of the speed of sound, which provide a reading a bit more quickly
than RADAR.

A

LIDAR

25
Q

An on-board computer calculates
the speed using an average speed program. If the vehicle appears to be speeding, the
pilot radios ahead to a police patrol unit, who then can stop the driver and give him or
her the gift of a speeding ticket

A

Average Speed Computers

26
Q

are wind speed instruments used by meteorologists. These devices have
3 or 4 cups attached to a central spoke. As the cups catch the movement of air, they
spin on the spoke, and the revolutions per minute are converted to an air speed or wind
speed.

A

Anemometer

27
Q

possibly the simplest and most basic tool for measuring a standard area in inches, feet and centimeters. Essentially a flexible form of ruler made from a ribbon of plastic, fiber glass or metal with linear-measurement markings, you stretch it
across the area to be measured.

A

Measuring Tape

28
Q

is an instrument for measuring both vertical and horizontal areas and
angles in conjunction with triangulation. Triangulation, associated with geometry and
trigonometry, is the process of establishing the location of a point by measuring angles
to it from several other points on a fixed line.

A

Theodolite

29
Q

an instrument used to determine the area of a two-dimensional shape
or planar region, is useful for measuring areas with irregular shapes and comes in
several types:

A

Planimeter

30
Q

is a device that tells the time of day when there is sunlight by the
apparent position of the Sun in the sky. In the narrowest sense of the word, it consists of
a flat plate (the dial) and a gnomon, which casts a shadow onto the dial.

A

sundial

31
Q

is an instrument used to measure, keep, and indicate time. is one of
the oldest human inventions, meeting the need to measure intervals of time shorter than
the natural units: the day, the lunar month, and the year. Devices operating on several
physical processes have been used over the millennia.

A

clock

32
Q

is a timepiece intended to be carried or worn by a person. It is designed to
keep working despite the motions caused by the person’s activities. A wristwatch is
designed to be worn around the wrist, attached by a watch strap or other type
of bracelet. A pocket watch is designed for a person to carry in a pocket. The study of
timekeeping is known as horology.

A

watch

33
Q

is a clock device that uses a hyperfine transition frequency in
the microwave, or electron transition frequency in the optical, or ultraviolet region[2] of
the electromagnetic spectrum of atoms as a frequency standard for its timekeeping
element.

A

atomic clock