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WorksheetsSI units research activity
Total questions: 1
Worksheet time: 28mins
What does SI stand for in the context of SI units?
Standard International
Système Internationale d'Unités
Scientific International
Systematic International Units
Which of the following is NOT a base unit in the SI system?
Kilogram
Mole
Candela
Liter
What is the base SI unit for time?
Ampere
Second
Kelvin
Metre
How many base units are there in the SI system according to the image?
Five
Six
Seven
Eight
Which region is mentioned as an exception for not using SI units?
Europe
North America
Asia
Australia
What is the SI unit of mass?
Kelvin
Pascal
Kilogram
Joule
What does the abbreviation 'Pa' stand for in SI units?
Pascal
Power
Pressure
Pound
Which SI unit is used to measure energy?
Bar
Joule
Kelvin
Hour
What is the abbreviation for the SI unit of time, second?
s
sec
sa
Which of the following is not a unit of time?
Second
Hour
Kelvin
All of the above are units of time
What is the primary purpose of a load chart in the context of the image?
To determine the fuel efficiency of industrial vehicles
To outline the maintenance schedule for machinery
To indicate the maximum safe lifting capacity at various angles and lengths
To provide a price list for renting industrial equipment
What does the SI unit "W" stand for?
Weight
Watt
Wavelength
Work
What is measured in Newtons?
Pressure
Force
Energy
Frequency
Which unit is used to measure volume?
Metre
Candela
Litre
Newton
What does the SI unit "cd" measure?
Luminous intensity
Current
Charge
Heat
The SI unit "Lux" is associated with which of the following measures?
Mass
Illumination
Temperature
Resistance
What is the SI unit for length?
Lux
Candela
Metre
Litre
What is the formula for calculating power according to Watt's Law?
P = I x V
P = I + V
P = I / V
P = I - V
According to Watt's Law, if you know the power (P) and the current (I), how can you calculate the voltage (V)?
V = P x I
V = P + I
V = P / I
V = P - I
Using Watt's Law, how can you find the current (I) if you have the power (P) and the voltage (V)?
I = P x V
I = P + V
I = P / V
I = V / P
What does Newton's 1st Law of Motion state?
An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the object's mass.
For every action, there is an equal and opposite reaction.
Gravity is the force that attracts two bodies toward each other.
According to Newton's 2nd Law of Motion, what is the equation that relates force, mass, and acceleration?
F = m/a
F = ma
a = F/m
m = Fa
What principle is described by Newton's 3rd Law of Motion?
Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
The force exerted by an object is equal to the mass of the object multiplied by its acceleration.
For every action, there is an equal and opposite reaction.
The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
What is mass defined as in the context of the provided material?
The force due to gravity on an object
The amount of matter in an object measured in kilograms
The force per unit area on a surface
The pull of gravity on the mass of the object
How is weight measured according to the text?
In kilograms
In newtons
In pascals
In square meters
What is the SI unit for force as mentioned in the document?
Pascal
Kilogram
Newton
Meter squared
What does one newton per square meter equal to?
One kilogram
One pascal
One meter
One newton
According to the example provided, what happens when a liquid or a gas is in contact with a solid surface?
It cannot exert any force on the surface
It measures the force in kilograms
It produces a force on that surface
It defines the weight of the fluid
What is the numerical value of the luminous efficacy of monochromatic radiation of frequency 540 x 10^12 Hz, when expressed in the unit lm W^-1?
683 lm W^-1
540 lm W^-1
300 lm W^-1
100 lm W^-1
The candela is defined based on the luminous efficacy of monochromatic radiation with a specific frequency. What is this frequency?
300 x 10^12 Hz
540 x 10^12 Hz
600 x 10^12 Hz
450 x 10^12 Hz
In the diagram provided, what does the term "1 sr" refer to?
1 square foot
1 lux
1 steradian
1 lumen
Which unit is equivalent to 1 lumen per square foot?
1 footcandle
1 lux
1 candela
1 steradian
What is the unit of illuminance in the International System of Units (SI)?
Candela
Lumen
Lux
Watt
How is one lux defined in terms of lumens and area?
One lux is equal to one lumen per meter squared
One lux is equal to one lumen per square kilometer
One lux is equal to 0.00146 lumens per meter squared
One lux is equal to 100 lumens per meter squared
When reduced to SI base units, one lux is equal to how many kilogram per second cubed?
0.00146 kg/s³
1.46 x 10^-3 kg/s³
1.46 x 10^-2 kg/s³
14.6 x 10^-3 kg/s³
What is the frequency of the UK mains power supply?
50 hertz (Hz)
60 hertz (Hz)
120 volts (V)
230 hertz (Hz)
What is the voltage of the UK mains power supply?
50 volts (V)
120 volts (V)
230 volts (V)
240 volts (V)
In engineering notation, the exponent of 10 must be divisible by what number?
2
3
5
10
How can 1,000,000 be written in engineering notation?
(a)
What is the power of 10 for the prefix "giga-"?
A) 9
B) 6
C) -3
D) -6
What prefix abbreviation corresponds to the multiple size 0.000001?
A) ㅠ
B) ㅈ
C) μ
D) ㅌ
Which prefix is used for the multiple size 1,000,000?
A) Fantastic-
B) mega-
C) Boss-
D) Sound-
What is the prefix abbreviation for "centi-"?
A) D
B) A
C) D
D) c
How is the power of 10 expressed for the prefix "nano-"?
A) -8
B) -6
C) -5
D) -9
What is the distance from the Sun to Pluto expressed in scientific notation?
4.4 × 10^12 m
4.4 × 10^9 m
4.4 × 10^6 m
4.4 × 10^15 m
How can the distance from the Sun to Pluto be abbreviated using the prefix 'tera'?
4.4 terametres
4.4 gigametres
4.4 megametres
4.4 petametres
What is the abbreviated form of the distance from the Sun to Pluto using the prefix 'tera' and the correct unit symbol?
4.4 Tm
4.4 Gm
4.4 Mm
4.4 Pm
Which is greater: 230kV or 2.3MV?
230kV
2.3MV
Both are equal
Cannot be determined
What is one of the objectives of this session?
Learn about SI's in a presentation
Discuss the history of construction science
Write an essay on construction materials
Take a final exam on construction science
What are students expected to do with their research outcomes?
Publish them in a scientific journal
Share and present them within their groups and to their tutor
Email them to the dean of the faculty
Post them on social media
How should students record their research outcomes according to the session objectives?
In a written report
In a PowerPoint
On a poster board
As a verbal presentation
