MEASUREMENTS OF LENGTH, AREAS, SPEED AND TIME Flashcards
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
Measurement
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.
Scales
Length, Mass and Time. The current system of units has three standard units:
The meter, kilogram, and second.
the metric
system
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.
Speedometer
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.
Mechanical speedometers
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
Rulers
Its length is generally 1 meter
Yardstick or Meter Stick
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
Tape Measure
types of tape measure
sewing tape measure, retractable tape
measure, and surveying tape measure
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
Laser Measure
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,
Block Gauge
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.
Caliper
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.
. Micrometer
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.
Wheel Measure
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.
Odometer