4. Write uses of the following.
a) Vernier calliper
b) Screw gauge
c) Stop clock
d) Digital balance
e) Beam balance
Answers
Answer:
a) The vernier calipers found in the laboratory incorporates a main scale and a sliding vernier scale which allows readings to the nearest 0.02 mm. This instrument may be used to measure outer dimensions of objects (using the main jaws), inside dimensions (using the smaller jaws at the top), and depths (using the stem).
b) The screw gauge is an instrument used for measuring exactly the diameter of a thin wire or the width of a sheet of metal. It comprises of a U-shaped mount which is fixed with a screwed pin which is fixed to a thimble. Side by side to the axis of the thimble, a scale passed in mm is inscribed
c) A stopwatch is a handheld timepiece designed to measure the amount of time that elapses between its activation and deactivation. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stop clock.
d) The digital mass balances in the General Chemistry labs are very sensitive instruments used for weighing substances to the milligram (0.001 g) level. ... Use containers when weighing chemicals and always weigh objects at room temperature. Keep the draft shields closed
e) The beam balance is a device used for the determination of the mass of a body under gravitation. It consists of a beam supported at the centre by an agate knife edge resting on a support moving inside a vertical pillar. The beam carries a light pointer which moves over a scale.
Explanation:
Hope it helps you/ follow me I will follow you back- for all
Answer:
a). to measure dimentions
b).to measure diameter...
c).to measure the time lapse...
d). to weight the substances..
e). used to measure mass of body under gravitation..