which instrument we used to measure the time taken for the pendulum to make 20 oscillation ?
Which instrument used to measure the lenght ?
(a) A ream paper consists of 500 Shield describe briefly how you can find the thickness of one sheet of paper accurately
(b) state how can you find the average thickness of the sheets ?
why are copper wires and not Steel wires used in electric circuits although both Copper and steel are electrical conductor ? explain your answer
Answers
Explanation:
1. Metronome
2. Measuring tape, Ruler.
Answer:
A second's pendulum can be used as a timing device
Some of the standard instruments used to measure length are a ruler, meter scale, measuring tape, vernier caliper, and screw gauge. To measure very long lengths like the length of a road we use measuring tape or an odometer
Calculating Ream Weight
To calculate the ream weight, multiply the actual sheet size by the paper's basis weight and divide the result by the paper's basic size.
Copper is a metal thus, it has strong metallic binds and the free electrons allow them to conduct electricity. The problem with silver is that it gets tarnished with time. Also, it is more exensive than copper. We know that copper as well as silver are good conductors of heat and light.