WorksheetsT-lvl 1 SI units, Galvanic scale, expansion and heat capacities
Total questions: 16
Worksheet time: 8mins
Match the following units with their corresponding physical quantities.
kilogram (kg)
Mass
metre (m)
Length
second (s)
Time
ampere (A)
Electric Current
Match the following symbols with their meanings.
A
Symbol for area
ρ
Symbol for density
V
Symbol for volume
v
Symbol for velocity
Match the following units with their corresponding physical quantities.
Newton (N)
Force
Joule (J)
Energy
Watt (W)
Power
Pascal (Pa)
Pressure
Match the following descriptions with their corresponding formulas.
length × width × depth
Formula for the volume of a cuboid
pi x radius²
Formula for the area of a circle
volume × shc × temperature difference
Formula for heat energy
width × length
Area of a square
Match the following formulas with their corresponding concepts.
volts × amperes
Power in electrical circuits
force × distance
Work done
mass × acceleration
Newton's Second Law
lumens per m²
Illuminance
What is the definition of atmospheric pressure?
Force exerted by the weight of air above the Earth's surface
Force exerted by water on the Earth's surface
Force exerted by the sun on the Earth's surface
Force exerted by the moon on the Earth's surface
What is the specific heat capacity of water used in the example?
4.2 kJ/kg/°C
2.4 kJ/kg/°C
6.2 kJ/kg/°C
3.2 kJ/kg/°C
What happens to metals during corrosion?
They deteriorate through chemical or electrochemical reaction
They become stronger
They become more flexible
They become transparent
Which of the following is NOT a use for ceramics?
Electrical insulators
Firebricks
Insulating cables
Worktops
According to the electromotive series, which metal will corrode faster: copper or magnesium?
Copper
Magnesium
Both corrode at the same rate
Neither corrodes
What happens to the rate of corrosion as the distance between metals in the electromotive series increases?
The rate decreases
The rate increases
The rate remains the same
The rate fluctuates
What is the effect on the length of a material when temperature is factored in on the coefficient of linear expansion of metals?
It increases with temperature
It decreases with temperature
It remains constant
It fluctuates randomly
What is the primary cause of atmospheric pressure?
Gravitational pull of the Earth
Rotation of the Earth
Solar radiation
Lunar cycles
What is the primary factor that affects the rate of thermal expansion in solids?
Material composition
Color of the material
Shape of the material
Age of the material
Which of the following is a common method to prevent corrosion in metals?
Painting
Heating
Freezing
Polishing
What is the role of a sacrificial anode in corrosion prevention?
It absorbs moisture
It corrodes instead of the protected metal
It strengthens the metal
It changes the color of the metal
