Physics ยท General Awareness

Physics Measuring Instruments

1,123 Questions

Physics measuring instruments are essential tools used to measure various physical quantities. This topic covers devices like hygrometers, oscilloscopes, and sphygmomanometers. It is a highly scoring section in general science and general awareness examinations.

Pressure and humidity instrumentsElectrical measuring devicesMedical physics toolsNavigational instruments

Physics Measuring Instruments Questions

Multiple choice

Which ancient Chinese invention is used to measure the distance?

  1. The odometer

  2. The compass

  3. The astrolabe

  4. The sundial
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The odometer is an ancient Chinese invention used to measure the distance. It consists of a wheel that is attached to a counting mechanism.

Multiple choice

Which of the following was not a common alchemical instrument?

  1. Athanor

  2. Alembic

  3. Retort

  4. Microscope
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Microscopes were not invented until the 16th century, so they were not used in medieval alchemy.

Multiple choice

Which travel tool is used to measure the temperature and humidity of the surrounding environment?

  1. Thermometer

  2. Hygrometer

  3. Barometer

  4. Compass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A thermometer is a tool used to measure the temperature of the surrounding environment, providing information about the current weather conditions.

Multiple choice

Which travel tool is used to measure the temperature and humidity of the surrounding environment?

  1. Thermometer

  2. Hygrometer

  3. Barometer

  4. Compass
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A thermometer is a tool used to measure the temperature of the surrounding environment, providing information about the current weather conditions.

Multiple choice

Which of these is NOT a type of marine geophysical instrument?

  1. Multibeam echosounder

  2. Side-scan sonar

  3. Sub-bottom profiler

  4. Magnetometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Magnetometer is NOT a type of marine geophysical instrument. It is a device used to measure the strength and direction of magnetic fields.

Multiple choice

What is the primary method used to study the Earth's magnetic field?

  1. Magnetometers

  2. Seismometers

  3. Gravimeters

  4. Heat flow meters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Magnetometers are used to study the Earth's magnetic field. They measure the strength and direction of the magnetic field at a given location.

Multiple choice

What is the primary method used to study the Earth's gravity field?

  1. Gravimeters

  2. Seismometers

  3. Magnetometers

  4. Heat flow meters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gravimeters are used to study the Earth's gravity field. They measure the strength of the gravitational field at a given location.

Multiple choice

What is the primary method used to study the Earth's heat flow?

  1. Heat flow meters

  2. Seismometers

  3. Magnetometers

  4. Gravimeters
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Heat flow meters are used to study the Earth's heat flow. They measure the amount of heat that flows through a given area of the Earth's surface.

Multiple choice

Which optical instrument is used to measure the angle of deviation of light passing through a prism?

  1. Spectrometer

  2. Telescope

  3. Microscope

  4. Refractometer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A refractometer is an optical instrument used to measure the angle of deviation of light passing through a prism, allowing for the determination of the refractive index of a substance.

Multiple choice

Which of the following is an amperometric method?

  1. Voltammetry

  2. Potentiometry

  3. Conductometry

  4. Polarography
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Polarography is an amperometric method used to study the reduction of metal ions in solution.

Multiple choice

What is the name of the test that is used to measure hearing loss?

  1. Audiometry

  2. Otoscopy

  3. Tympanometry

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Audiometry is a test that is used to measure hearing loss. It involves playing sounds of different frequencies and volumes into the ear and asking the person to indicate when they can hear the sound.

Multiple choice

Which type of sensor is commonly used to measure air quality?

  1. Temperature sensor

  2. Humidity sensor

  3. Gas sensor

  4. Motion sensor
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Gas sensors are specifically designed to detect and measure the concentration of various gases in the air, making them suitable for air quality monitoring.

Multiple choice

Which equipment is used to measure the distance traveled by a golf ball?

  1. Golf club

  2. Golf ball

  3. Golf tee

  4. Rangefinder
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A rangefinder is a device used in golf to measure the distance between the player and the target (flag or hole).

Multiple choice

Which equipment is used to measure the speed of a baseball pitch?

  1. Radar gun

  2. Stopwatch

  3. Tape measure

  4. Anemometer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A radar gun is used to measure the speed of a baseball pitch in miles per hour.

Multiple choice

What is the name of the diagnostic technique used to measure the plasma density in a tokamak?

  1. Interferometry

  2. Spectroscopy

  3. Magnetic probes

  4. Langmuir probes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Interferometry is a diagnostic technique that uses the interference of electromagnetic waves to measure the plasma density in a tokamak.