The distance of the moon from the earth is

  • 3.84 * 108 m
  • 100 km
  • 1000 km
  • 2000 km

In screw gauge a thimble around its one end has

  • 50 divisions
  • 250 divisions
  • 100 divisions
  • 10 divisions

An interval of 300µs is equal to

  • 0.3 s
  • 3 × 10-4 s
  • 3 × 10-6 s
  • 0.03 s

An instrument used to measure small lengths such as internal or external diameter or length of a cylinder, etc. is called

  • Vernier calipers
  • physical balance
  • screw gauge
  • stop watch

The prefix for 4800000 W is

  • 48 kW
  • 480 kW
  • 48 W
  • 4800 kW

The words or letters added before a unit and stand for the multiples or sub-multiples of that unit are called

  • mass
  • prefixes
  • units
  • rate

The least count of Vernier calipers is

  • 0.01 mm
  • 0.1mm
  • 0.01 cm
  • 1 cm

Physical sciences were divided into

  • 4 disciplines
  • 3 disciplines
  • 5 disciplines
  • 6 disciplines

The smallest change a sensitive beam balance can record is

  • 100 mg
  • 10 mg
  • 50 mg
  • 1 mg

To measure various physical quantities such as length, time, mass, volume, etc. we use

  • mechanics
  • measuring instruments
  • prefixes
  • suffixes

The word ‘Science’ is derived from a Latin word

  • scientific
  • significant
  • Scientia
  • scientum

The least count of the digital stopwatch is

  • 0.2 s
  • 0.1 s
  • 0.3 s
  • 0.01 s

One division of Vernier scale is of

  • 1 cm
  • 1 mm
  • 2 mm
  • 0.9 mm

The unit which is not derived is

  • newton
  • kilogram
  • watt
  • pascal

In screw gauge, the distance between consecutive threads on the spindle is

  • 0.5 mm
  • 0.01 mm
  • 0.1 mm
  • 1 mm

The least count of the Vernier caliper is

  • 1 mm
  • 0.5 mm
  • 0.1 mm
  • 0.001 mm

By using prefixes, we can write 335 × 10-8 s as

  • 0.335 µs
  • 33.5 µs
  • 335 µs
  • 3.35 µs

When a standard is set for a quantity, then the standard quantity is called a

  • amount
  • rate
  • prefix
  • unit

The study of the internal structure of the Earth is known as

  • mechanics
  • nuclear physics
  • atomic physics
  • geophysics

The “seconds in a day” can be written in standard form as

  • 864 × 105 s
  • 86.4 × 105 s
  • 8640 × 105 s
  • 8.64 × 105 s

A chips wrapper is 4.5 cm long and 5.9 cm wide. Its area up to significant figures will be

  • 30 cm²
  • 28 cm²
  • 26.55 cm²
  • 32 cm²
The unit of volume is
  • meter
  • meter²
  • meter³
  • C
0 h : 0 m : 1 s

Answered Not Answered Not Visited Correct : 0 Incorrect : 0