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
The S.I unit of length is
k m ( kilometer)
m ( meter)
cm (centimeter )
mm ( millimeter)
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
Micrometer screw gauge is used to measure very small objects to
0.1 cm
0.01 cm
0.001 cm
0.1 mm
The force of gravity on a body is called
Mass
Weight
Density
Volume
The space occupied by an object is called
Write as power of ten
7 × 10-5
7 × 10-6
7 × 105
7 × 106
Which of the following is the standard notation of 0.04?
4 ×10-2
4 × 102
4 × 10-3
4 /102
What is the mass of 5 m3of cement of density 3000 kg /m3?
150 kg
1500 kg
15000 kg
15kg
The way of writing numbers in powers of ten is called
Standard notation
International system of writing
Metric system of writing
All the above
