Tag: units of mass

Questions Related to units of mass

A pilot while informing the position of the plane uses the following unit 

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. Nauticle mile

  2. Metric ton

  3. mm of Hg

  4. Light year

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Correct Option: A
Explanation:

A nautical mile is a unit of distance that is approximately one minute of arc measured along any meridian.

1 Nauticle mile = 1.852 Km

To measure long distances which of the following method is used?

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. Radio Echo

  2. Laser Pulse

  3. Parallax

  4. All of These

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Correct Option: D
Explanation:

Radio Echo, Laser Pulse and Parallax methods are used to measure mong distances.

$1$ ounce = ________ grams

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. $15.51$

  2. $28.35$

  3. $45.63$

  4. $09.87$

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Correct Option: B
Explanation:

Kilogram is the metric unit of mass

$1$ ounce is equal to $0.02835$ kg
So we get $1$ ounce $=$ $0.02835 \times 1000 = 28.35$ grams
Therefore option $B$ is correct

 _______________displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. Echo

  2. Parallax

  3. Triangulation

  4. None of These

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Correct Option: B
Explanation:

Parallax displacement or difference in the apparent position of an object vied along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

A uniform metre scale is balanced at $40\ cm$ mark, when weighs of $25\ gf$ and $10\ gf$ are suspended at $5\ cm$ mark and $75\ cm$ mark respectively. Calculate weight of metre scale.(in gf)

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. 50.5

  2. 72.5

  3. 52.5

  4. 80

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Correct Option: C

Which of the following is a non-metric unit of mass ?

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. pounds

  2. ounces

  3. both

  4. none

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Correct Option: C
Explanation:

The basic metric unit of mass is kilogram

Tons , pounds and ounces are non metric units of mass
Therefore option $C$ is correct

$AB$ is a metre scale, with forces action as shown. Its mass of $100\ g$. Calculate the algebraic sum of their moments about A. answer should be in $gf$ cm

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. 0

  2. 50

  3. 100

  4. 20

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Correct Option: B

The mass of a body is a measure of its.

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. Momentum

  2. Force

  3. Inertia

  4. None of these

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Correct Option: C
Explanation:

The mass of a body is a measure of its inertia. By definition, inertia is the resistance to a change in the state of motion of a physical object. Mass is, therefore, a measure of inertia.

Which of the following is a non-metric unit of mass ?

physics measurements and experimentation measuring distance of celestial bodies unconventional units of measurements units of mass

  1. thou

  2. gallons

  3. pounds

  4. bar

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Correct Option: C
Explanation:

Kilogram is the basic unit of mass in the metric system

Pounds is not the metric unit of mass
So the non metric unit of mass is pounds
Therefore option $C$ is correct