20917389
Beschreibung
Quiz von Noel Sablay, aktualisiert more than 1 year ago
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Erstellt von Noel Sablay
vor mehr als 4 Jahre
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Frage 1
Frage
[blank_start]Measurement[blank_end] is the process of comparing a physical quantity with a standard.
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Measurement
Frage 2
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Which of the following is NOT an SI base unit?
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Ampere
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Pascal
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Kilogram
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Meters
Frage 3
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In the figure, the reading of the micrometer is [blank_start]6.36[blank_end] mm
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6.36
Frage 4
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Which of the following is correcr SI base unit of force. (Hint : think of formula of force)
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kgm^2/S^2
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kgm/s^2
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kgm/s
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N
Frage 5
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Which of the following is a good way to reduce error in measurement?
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Measure directly the thickness of a page of textbook using meter rule
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Measure the time it takes for 10 complete oscillations of pendulum and divide it with 10 number of oscillations
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Take only 1 measurement of length
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Measure length using a vernier caliper
Frage 6
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A rectanngular box measures 20 cm x 580 mm x 0.80 m. Its mass is 300g. What is its density in kg/m^3? Answer : [blank_start]3.2[blank_end] kg/m^3 (up to 2 significant figures only)
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3.2
Frage 7
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What is the reading of the vernier caliper shown?
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10.5 cm
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10.2 cm
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102 cm
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3.0 cm
Frage 8
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The SI base unit of electric current is [blank_start]ampere[blank_end]
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ampere
Frage 9
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Which of the following instruments is used to measure volume of a liquid?
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Graduated cylinder
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Beaker
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Ammeter
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Vernier caliper
Frage 10
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Measurement consists of [blank_start]magnitude[blank_end] (how large) and [blank_start]unit[blank_end] (standard used).
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magnitude
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unit
Frage 11
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The diagram shows part of a ruler. The ruler is used to find the length of the nail. What is the length of the nail?
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2.2 cm
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2.7 cm
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3.2 cm
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3.7 cm
Frage 12
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A student stands with both feet on some scales inorder to measure his weight. The reading on the scale is 500N. He lifts one foot off the scales and keeps it lifted. What s the new reading on the scale?
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0
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250 N
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500 N
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1000 N
Frage 13
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A measuring cylinder containing liquid is placed on a top-pan balance. The apparatus is left overnight and some liquid evaporates. The diagram shows the readings. What is the density of the liquid (in g/cm^3)
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0.875
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1.14
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1.40
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1.42
Frage 14
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A customer goes to a market and buys some rice. The stallholder pours rice into a dish that hangs from a spring balance. He records the reading on the spring balance.
The customer then buys sime pasta and the stallholder notices that the reading on the spring balance, with just the pasta in the dish, is the same as it was just rice in the dish.
The rice and dish must have the same
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density
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temperature
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volume
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weight
Frage 15
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The density of a material is the ratio of its mass to its [blank_start]volume[blank_end].
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volume
Frage 16
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Kelvin is the SI base unit of [blank_start]absolute temperature[blank_end].
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thermodynamic temperature
Frage 17
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Which of the following has the largest value?
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10 megawatts
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10 kilowatts
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10 femto watts
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10 microwatts
Frage 18
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How many centimeters are there in 1 kilometer?
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10
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100
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10,000
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100,000
Frage 19
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Convert 20 kilometers per hour to meters per second. Express your answer to 3 significant figures. Answer: [blank_start]5.56[blank_end]
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5.56
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