Science Class 8th
481. Syringe is filled due to:
A) Air Pressure
B) Water Pressure
C) None of these
D) Vapour Pressure
482. A Thick layer of air is around our earth is called:
A) Atmosphere
B) Oxygen
C) Force
D) Pollution
483. Experiments show that pressure of gas depends upon:
A) Quantity and Temperature
B) Air Pressure
C) Quantity
D) Temperature
484. Measurements are only confined to science.
A) True
B) False
485. Physical quantities that can be:
A) Can be felt
B) Can be seen
C) Can be measured
D) None of the above
486. Physical quantities are those that can be divided into _____ categories.
A) One
B) Two
C) Three
D) Four
487. Which of the following is a type of physical quantity:
A) Base
B) Derived
C) Both A and B
D) None of the above
488. Which of the following is a not a base quantity:
A) Time
B) Density
C) Mass
D) Length
489. _______ are those Quantities in which other physical quantities can be expressed:
A) Base Quantity
B) Derived Quantity
C) Vector
D) Scalar
490. Which of the following is a derived quantity:
A) Volume
B) Density
C) Speed
D) All of the above
491. The Comparison of something with some standard is known as:
A) Comparison
B) Measurement
C) Scaling
D) Ruling
492. The standard wit which things are compared is known as:
A) Standard
B) Comparent
C) Unit
D) None of the above
493. A number with a unit is known as:
A) Variable
B) Constant
C) Magnitude
D) Vector
494. The Unit of base quantity is known as base unit.
A) True
B) False
495. What is the base unit of length:
A) m
B) kg
C) g
D) s
496. The unit of Force is
A) Ω
B) N
C) A
D) F
497. The set of units called as International System are denoted by:
A) SI
B) IS
C) U
D) None of the above
498. What is the unit of intensity of light:
A) Watt
B) Volt
C) Candela
D) Ampere
499. The unit of amount of any substance is called:
A) Gram
B) Kilogram
C) Mole
D) Mole
500. The unit of length is _____.
A) km
B) m
C) inch
D) mm