20917389
Descripción
Test por Noel Sablay, actualizado hace más de 1 año
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Creado por Noel Sablay
hace casi 5 años
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Pregunta 1
Pregunta
[blank_start]Measurement[blank_end] is the process of comparing a physical quantity with a standard.
Respuesta
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Measurement
Pregunta 2
Pregunta
Which of the following is NOT an SI base unit?
Respuesta
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Ampere
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Pascal
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Kilogram
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Meters
Pregunta 3
Pregunta
In the figure, the reading of the micrometer is [blank_start]6.36[blank_end] mm
Respuesta
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6.36
Pregunta 4
Pregunta
Which of the following is correcr SI base unit of force. (Hint : think of formula of force)
Respuesta
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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
Pregunta 5
Pregunta
Which of the following is a good way to reduce error in measurement?
Respuesta
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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
Pregunta 6
Pregunta
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)
Respuesta
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3.2
Pregunta 7
Pregunta
What is the reading of the vernier caliper shown?
Respuesta
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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
Pregunta 8
Pregunta
The SI base unit of electric current is [blank_start]ampere[blank_end]
Respuesta
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ampere
Pregunta 9
Pregunta
Which of the following instruments is used to measure volume of a liquid?
Respuesta
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Graduated cylinder
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Beaker
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Ammeter
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Vernier caliper
Pregunta 10
Pregunta
Measurement consists of [blank_start]magnitude[blank_end] (how large) and [blank_start]unit[blank_end] (standard used).
Respuesta
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magnitude
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unit
Pregunta 11
Pregunta
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?
Respuesta
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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
Pregunta 12
Pregunta
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?
Respuesta
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0
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250 N
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500 N
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1000 N
Pregunta 13
Pregunta
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)
Respuesta
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0.875
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1.14
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1.40
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1.42
Pregunta 14
Pregunta
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
Respuesta
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density
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temperature
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volume
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weight
Pregunta 15
Pregunta
The density of a material is the ratio of its mass to its [blank_start]volume[blank_end].
Respuesta
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volume
Pregunta 16
Pregunta
Kelvin is the SI base unit of [blank_start]absolute temperature[blank_end].
Respuesta
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thermodynamic temperature
Pregunta 17
Pregunta
Which of the following has the largest value?
Respuesta
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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
Pregunta 18
Pregunta
How many centimeters are there in 1 kilometer?
Respuesta
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10
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100
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10,000
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100,000
Pregunta 19
Pregunta
Convert 20 kilometers per hour to meters per second. Express your answer to 3 significant figures. Answer: [blank_start]5.56[blank_end]
Respuesta
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5.56
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