The document discusses various tools used for measuring in physics, including rulers, calipers, scales, thermometers, clocks, sundials, and digital displays. It provides examples of specific measuring tools such as vernier calipers, beam scales, mercury thermometers, grandfather clocks, sandglasses, sundials, egg clocks, and atomic fountain clocks. The tools are used to directly measure lengths, weights, temperatures, time, and provide precise timekeeping standards.

1. The World of PHYSICS…
VARIOUS AND COMMON
EXAMPLES OF MEASURING
TOOLS:
foot rule – simply
known as ruler
pull-push rule – known
as the carpenter’s best
friend

2. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
A vernier caliper is a
wrenchlike tool that
can directly measure
small lengths. Once
the caliper is adjusted
to the width of the
measured object, a
reading is taken from a
scale on the tool.

3. The World of PHYSICS…
Slide rule - was a standard tool for
engineers and scientists. Operating on
the principle that all mathematical
computations may be carried out on
sets of sliding scales, the device looks

4. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Beam Scale – is often found in
doctor’s offices, the beam scale
uses small adjustable weights
called poises to balance the load.
The weight is measured from
markings on the beam.

5. The World of PHYSICS…
EXAMPLE OF MEASURING TOOLS:Outdoor Thermometer – like
a red-dyed alcohol
thermometer measures an
outside air temperature of
about 6° C (about 43° F). In
a thermometer, an
expanding fluid such as
alcohol or mercury is
trapped within a closed

6. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Mercury and digital
thermometers are the
most common types of
household devices for
measuring body
temperature.In mercury thermometers, an
increase in warmth causes
mercury to expand and rise in a
glass tube. Digital thermometers

7. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Most grandfather clocks
are weight-driven, which
means they are
powered by the pull of a
hanging weight. A
mechanism called the
escapement regulates
the incremental release
of the weight’s energy
via toothed gears, which

8. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Ornate sandglasses like
this one were once used
to mark the passage of
minutes and hours.
Flipping the glass causes
the fixed amount of sand
to pass though its narrow
central hole in a
consistent length of time,
creating a relatively
accurate measure.
Generally called

9. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
This portable folding
German sundial has a
string gnomon (pointer),
adjustable for accuracy at
any latitude. As shadows
fall across the sundial, the
smaller dials show Italian
and Babylonian hours. The
dial also indicates the
length of the day and the
position of the sun in the

10. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
This Japanese clock was
regulated by weights on
a moving balance bar is
called a lantern clock
because of its distinctive
shape. it features the
one-hand design
common in most clocks
until the 1650s.

11. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Portable clocks like
the Nüremberg egg
became possible
with the
development of
coiled springs as a
power source for
timekeeping
devices.

12. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
Liquid crystal forms
from various organic
substances and
takes its name from
the crystal-like
properties of liquids
whose molecular
orientation changes
when a small electric
current is applied. It
is used for digital

13. The World of PHYSICS…
EXAMPLE OF MEASURING TOOL:
NIST F-1, an atomic
cesium fountain clock,
replaces the NIST-7,
which served as the
primary United States
time standard from 1993
to the end of 1999. The
new atomic timekeeper
is so accurate that it
could run for nearly 20
million years without