SCIENCE CHECKPOINT
FORM 1
BASIC QUANTITIES
LESSON PLAN: Learners should be able to:
•Use scientific tools for measurement.
•Record the measurements using appropriate units.
UNITS AND FORMULAE
•Shown below are all the quantities that you need
to know( so far). They are all listed with their
symbols( which you use in formulae) and their
standard unit. You absolutely must start writing
the proper unit after every number or answer you
give. Learn some formulae as well. There are lots
more physics formulae that you will come across in
the next two or more years.
SOME MEASUREMENTS,MEASURING
INSTRUMENTS AND THEIR UNITS
MEASUREMENT
INSTRUMENT
UNIT
Time
Stop watch or clock
Second (s)
Distance
Ruler, measuring tape
Meter (m)
Mass
Beam balance
Gram (g)
Temperature
Thermometer
Degree Celsius (℃)
Current
Ammeter
Ampere (amps)
Speed
Speedometer
Kilometer per hour (km/h)
Light
Photometer
Meter per second (m/s)
UNITS AND FORMULAE
QUANTITY
SYMBOL
STANDARD UNITS
FORMULA
Distance
d or r
Metre, m
Area
A
Metre, m²
Area( of rectangle)
=length x width
Volume
V
Metre, m³
Volume (of block)
=lxwxh
Mass
m
Kilogram, kg
UNITS AND FORMULAE
QUANTITY
SYMBOL
STANDARD
UNITS
Kg per m ,
kg/m³
Density
D
Force
F
newtons, N
Pressure
P
pascals, Pa
(N/m²)
FORMULA
D = m/V
P = F/A
UNITS AND FORMULAE
QUANTITY
SYMBOL
STANDARD UNITS
FORMULA
Time
t
seconds, s
Speed
s
metre/second, m/s s = d/t
Weight( a force)
W
newtons, N
Moment
M
Energy
E
newtons-metre,
Nm
Joules, J
M=Fxd
UNITS AND FORMULAE
QUANTITY
SYMBOL
Current
I
STANDARD
UNITS
ampere, A
Resistance
R
Ohms,
Potential
Difference
Temperature
V
volts, V
T
degree Celsius,
FORMULA