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 Measurements And Experimentation 40 Flashcards |
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What is the S.I. unit of mass? |
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Kilogram (kg) |
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True or False: Derived units can be expressed in terms of fundamental units. |
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True |
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Riddle: I measure how fast an object moves, calculated by dividing distance by time. What am I? |
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Speed |
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The least count of a measuring instrument is defined as ______. |
Card: 7 / 40 |
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The smallest measurement it can accurately detect. |
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Which of the following is not a fundamental unit? A) Meter B) Second C) Joule D) Kilogram |
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C) Joule |
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True or False: The S.I. system includes only five fundamental units. |
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False. The S.I. system includes seven fundamental units. |
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The unit for electric current in the S.I. system is ______. |
Card: 13 / 40 |
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Ampere (A) |
Card: 14 / 40 |
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Fill in the blank: The relationship between frequency (f) and time period (T) is expressed as ______. |
Card: 15 / 40 |
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F = 1/T |
Card: 16 / 40 |
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What is the S.I. unit of length? |
Card: 17 / 40 |
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Meter (m) |
Card: 18 / 40 |
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Riddle: I am the distance light travels in a year. What am I? |
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Light year (ly) |
Card: 20 / 40 |
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True or False: A meter rule can measure length accurately up to two decimal places. |
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False. A meter rule can measure length accurately only to one decimal place. |
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The formula for calculating the time period (T) of a simple pendulum is ______. |
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T = 2π √(l/g) |
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Fill in the blank: A screw gauge has a least count of ______. |
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Pitch / Total number of circular scale divisions |
Card: 26 / 40 |
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Which system of units uses meter, kilogram, and second as its base units? A) C.G.S. B) F.P.S. C) M.K.S. D) S.I. |
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D) S.I. |
Card: 28 / 40 |
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True or False: The least count of a vernier caliper is typically smaller than that of a meter rule. |
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True |
Card: 30 / 40 |
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The unit for measuring area is expressed in ______. |
Card: 31 / 40 |
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Square meters (m²) |
Card: 32 / 40 |
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Riddle: I measure the force that causes an object to move, calculated as mass times acceleration. What am I? |
Card: 33 / 40 |
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Force (Newton, N) |
Card: 34 / 40 |
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Fill in the blank: The non-metric unit for measuring small distances is called ______. |
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Angstrom (Å) |
Card: 36 / 40 |
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What does the term 'zero error' refer to in measuring instruments? |
Card: 37 / 40 |
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The discrepancy when the zero mark of the scale does not align when the instrument is closed. |
Card: 38 / 40 |
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Which prefix denotes one billion? A) Mega B) Giga C) Tera D) Kilo |
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B) Giga |
Card: 40 / 40 |
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