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 needed to cause unit extension ie , l m is called
Extension
Stretching force
Force constant
Stretching
Name the device used for measuring weight.
Beam balance
Meter scale
Measuring cylinder
Vernier scale
The force of gravity on a body is called
Mass
Weight
Density
Volume
The simplest type of scale enables a length to be measured to 0.01 cm is
Common scale
Micrometer screw gauge
Simple pendulum
Write as power of ten
7 × 10-5
7 × 10-6
7 × 105
7 × 106
An object floats on water
When the object is less denser than water
When the object is denser than water
When the density of object is same as water
Can not be predicted.
The way of writing numbers in powers of ten is called
Standard notation
International system of writing
Metric system of writing
All the above
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
