WorksheetsUnits, Dimension, and Measurements
Total questions: 20
Worksheet time: 48mins
The SI unit for mass is _________.
Pounds
Inches
Kilograms
Ounces
Grams
Newtons could be used to measure __________ and __________.
mass, speed
momentum, work
force, weight
direction, power
Which one of these options is NOT a derived quantity?
Area
Volume
Density
Temperature
Luminous Intensity
1 μm (mikro-meter) = .... m
1 x 10-12
1 x 10-9
1 x 10-6
1 x 1012
What is the DIMENSION of acceleration?
L3
[L/T]
[L/T2]
LT
Find out the dimensionless quantity
Pressure
Efficiency
Viscosity
Density
A computer takes 0.00087 seconds to complete a calculation. Which of the following conversions is correct?
870 microseconds
87 milliseconds
87 nanoseconds
8.7 centiseconds
A 330mL can of Sprite contains 586 kJ of energy mostly from the 38 grams of sugar. Determine the number of kcal in a can of Sprite rounded off to a whole number. There are 4.184 J in one calorie of energy.
(a)
1 Yen Japan is equivalent to 150 Indonesian Rupiah. Determine the Rupiah cost of a 125 Yen onigiri at a Lawson's in Osaka.
(a)
The current in LED is measured to be 87.3 mA. Determine the current in A. Be sure to include the unit.
(a)
A box contains 4 bags of cement. The total mass of all 4 bags is 40 kg. What is the mass of each bag in milligrams in scientific notation?
1.0 x 107 mg
1.0 x 108 mg
1.0 x 109 mg
1.0 x 106 mg
Lalisa took a ruler and measured the length x width x height of a block of wood. What measurement was she getting?
How CLOSE a measurement or attempt is to the actual value is the definition of ..............
systematic
precision
accuracy
sensitivity
How CONSISTENT our results are regardless of proximity to the actual value is the definition of .......
accuracy
target value
uncertainty
precision
Which of the following shows an accurate but not precise data
Which of the following shows a precise but not accurate data?
Which of the following equation represent error in measurement?
Error = Measured Value - True Value
Error = 1 - True Value
Error = True Value + Measured Value
Error = 1 - Measured Value
The vernier calliper shows the reading of (a) mm
The micrometer screw gauge shows a reading of (a) mm
Parallax error is due to:
the instrument does not read exactly zero when there is nothing being measured
incorrect positioning of the eye
object not being at the same level as the marking on the scale
the experimenter consistently underestimate or overestimate a reading
