The S.I unit of length is
k m ( kilometer)
m ( meter)
cm (centimeter )
mm ( millimeter)
Length , mass and time are the
Basic quantities or fundamental quantities
Derived quantities
International quantities
Standard quantities
What is the mass of 5 m3of cement of density 3000 kg /m3?
150 kg
1500 kg
15000 kg
15kg
How many millimeter are there in 0.5 cm ?
5 mm
0.005 mm
50 mm
0.05 mm
Express 0.084 as powers of ten with one figure before the decimal point
8.4 × 102
8.4 × 103
8.4 × 10-2
8.4 × 10-3
Write as power of ten
7 × 10-5
7 × 10-6
7 × 105
7 × 106
The simplest type of scale enables a length to be measured to 0.01 cm is
Common scale
Micrometer screw gauge
Vernier scale
Simple pendulum
Magnetic force is an example of
Contact force
Action-at-a-distance force
Gravitational force
Stretching force
Number of complete oscillations per second is called
Time period
Length of the pendulum
Frequency
All the above
What is the force constant of a spring which is stretched 2 mm by a force of 4 N ?
2 × 10-3
2 ×103
4 ×10-3
4 × 103
