Frage 1
Frage
[blank_start]Measurement[blank_end] is the process of comparing a physical quantity with a standard.
Frage 2
Frage
Which of the following is NOT an SI base unit?
Antworten
-
Ampere
-
Pascal
-
Kilogram
-
Meters
Frage 3
Frage
In the figure, the reading of the micrometer is [blank_start]6.36[blank_end] mm
Frage 4
Frage
Which of the following is correcr SI base unit of force. (Hint : think of formula of force)
Antworten
-
kgm^2/S^2
-
kgm/s^2
-
kgm/s
-
N
Frage 5
Frage
Which of the following is a good way to reduce error in measurement?
Antworten
-
Measure directly the thickness of a page of textbook using meter rule
-
Measure the time it takes for 10 complete oscillations of pendulum and divide it with 10 number of oscillations
-
Take only 1 measurement of length
-
Measure length using a vernier caliper
Frage 6
Frage
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)
Frage 7
Frage
What is the reading of the vernier caliper shown?
Antworten
-
10.5 cm
-
10.2 cm
-
102 cm
-
3.0 cm
Frage 8
Frage
The SI base unit of electric current is [blank_start]ampere[blank_end]
Frage 9
Frage
Which of the following instruments is used to measure volume of a liquid?
Antworten
-
Graduated cylinder
-
Beaker
-
Ammeter
-
Vernier caliper
Frage 10
Frage
Measurement consists of [blank_start]magnitude[blank_end] (how large) and [blank_start]unit[blank_end] (standard used).
Frage 11
Frage
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?
Antworten
-
2.2 cm
-
2.7 cm
-
3.2 cm
-
3.7 cm
Frage 12
Frage
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?
Frage 13
Frage
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)
Frage 14
Frage
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
Antworten
-
density
-
temperature
-
volume
-
weight
Frage 15
Frage
The density of a material is the ratio of its mass to its [blank_start]volume[blank_end].
Frage 16
Frage
Kelvin is the SI base unit of [blank_start]absolute temperature[blank_end].
Frage 17
Frage
Which of the following has the largest value?
Antworten
-
10 megawatts
-
10 kilowatts
-
10 femto watts
-
10 microwatts
Frage 18
Frage
How many centimeters are there in 1 kilometer?
Frage 19
Frage
Convert 20 kilometers per hour to meters per second. Express your answer to 3 significant figures. Answer: [blank_start]5.56[blank_end]