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