Introduction To Physics And Measurement - SS1 Physics Past Questions and Answers - page 2
The S. I unit for electric current is
Volts
Power
Ampere
All of the above
The unit for measuring distance is
Mile
Metre
Inch
Yard
What are fundamental quantities?
Fundamental quantities are the basic physical quantities that are not defined in terms of other quantities. They are those basic physical quantities which do not depend on any other physical quantities for their measurement.
State and explain the fundamental quantities of light and the amount of substance.
- Luminous Intensity: The fundamental quantity for measuring the intensity of light emitted by a source. Its unit is the candela (cd).
- Amount of Substance: The fundamental quantity for measuring the number of entities (such as atoms or molecules) in a substance. Its unit is the mole (mol).
Which measuring instrument is used to measure temperature?
Voltmeter
Thermometer
Barometer
Ammeter
Which of the following is an example of a non-contact measuring technique?
Caliper
Stopwatch
Infrared thermometer
Weighing scale
Which measuring instrument is used to measure the intensity of light?
Spectrophotometer
Hydrometer
Tachometer
Altimeter
Which measuring instrument is used to measure electrical resistance?
Voltmeter
Ammeter
Ohmmeter
Wattmeter
A device used to measure the pressure of a gas or liquid is called a:
Barometer
Thermometer
Hydrometer
Manometer
Which measuring technique involves analyzing the interaction of light with matter?
Optical measurement
Pressure measurement
Electrical measurement
Timing technique