Quick Answer: What Is The Smallest Measurement?

What is meant by least count?

In the science of measurement, the least count of a measuring instrument is the smallest and accurate value in the measured quantity that can be resolved on the instrument’s scale.

A stopwatch used to time a race might resolve down to a hundredth of a second, its least count..

How long is a jiffy?

In astrophysics and quantum physics a jiffy is, as defined by Edward R. Harrison, the time it takes for light to travel one fermi, which is approximately the size of a nucleon. One fermi is 10−15 m, so a jiffy is about 3 × 10−24 seconds.

Is pound a mass or weight?

The slug is the unit of mass in the US common system of units, where the pound is the unit of force. The pound is therefore the unit of weight since weight is defined as the force of gravity on an object.

How do I calculate least count?

Mathematically a measurement instrument Least Count is calculated by dividing main scale reading with the total number of divisions on main scale. And if instrument also have a Secondary scale. Then instrument LC is the ratio of main scale L.C. and number of divisions on the secondary scale.

What is a Zeptosecond?

A zeptosecond is a trillionth of a billionth of a second, or a decimal point followed by 20 zeroes and a 1.

What’s faster than a nanosecond?

Microsecond(One millionth of a second) Nanosecond(One billionth of a second) Picosecond(One trillionth of a second)

What is the largest unit of time?

supereonThe largest unit is the supereon, composed of eons. Eons are divided into eras, which are in turn divided into periods, epochs and ages.

Is an attosecond faster than light?

A research team at the University of Central Florida has demonstrated the fastest light pulse ever developed, a 53-attosecond X-ray flash. … At one-quintillionth of a second, an attosecond is unimaginably fast. In 53 attoseconds, light travels less than one-thousandth of the diameter of a human hair.

Which is smaller angstrom or Fermi?

fermi to ångström conversion Conversion number between fermi [fm] and ångström [Å] is 1.0 × 10-5. This means, that fermi is smaller unit than ångström.

What is the least measurement of length?

Vocabulary Language: English ▼ EnglishTermDefinitionMetric units of lengthThe metric units of length are units of measurement such as millimeter, centimeter, meter and kilometer.MillimeterA millimeter is the smallest common metric unit of length.4 more rows•Oct 30, 2012

How can I calculate weight?

Weight is a measure of the force of gravity pulling down on an object. It depends on the object’s mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object’s weight in Newtons (N) and m is the object’s mass in kilograms.

What is a Yoctosecond?

One yoctosecond is one trillionth of a trillionth of a second (10–24 s) and is comparable to the time it takes light to cross an atomic nucleus.

What is the smallest measurement of mass?

The Ounce. The smallest unit of mass is ounces (oz). One ounce weighs about the same as a slice of bread. It is very light.

What is the bigger unit of weight?

Mass (weight) Units1 gigatonne(Gt)=1 000 000 000 000 000 g1 megatonne(Mt)=1 000 000 000 000 g1 tonne(t)=1 000 000 g1 kilogram(kg)=1 000 g1 gram(g)=1 g4 more rows