Mass, Weight & Density

11 Questions | Total Attempts: 469

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Mass, Weight & Density

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Questions and Answers
  • 1. 
    A container, of mass 50g, contains 40cm3 of the liquid. If total mass of the container and liquid is 70g, What is the density of the liquid?
    • A. 

      0.50 g/cm3

    • B. 

      0.80 g/cm3

    • C. 

      1.40 g/cm3

    • D. 

      2.00 g/cm3

  • 2. 
    An astronaut on the Moon has
    • A. 

      The same weight and mass as on the Earth

    • B. 

      The same weight but less mass as on the Earth

    • C. 

      Less weight but the same mass as on the Earth

    • D. 

      Less weight and less mass as on the Earth

  • 3. 
    The SI unit for mass is ......
    • A. 

      Kg

    • B. 

      N

    • C. 

      G

    • D. 

      N/Kg

  • 4. 
    The SI unit for Weight is ......
    • A. 

      Newton

    • B. 

      Kilogram

    • C. 

      Gram

    • D. 

      Newton per Kilogram

  • 5. 
    A room measures 4.0m x 3.0m x 2.0cm. The density of the air in the room is 1.3kg/m3.What is the mass of air in the room?
    • A. 

      0.054 kg

    • B. 

      0.312 kg

    • C. 

      31 kg

    • D. 

      24 kg

  • 6. 
    The weight of a rock on the Moon is 400N. What is the weight of the rock on Earth?(take gravitational field of the Moon is 1.7N/Kg and on Earth as 10N/Kg) 
    • A. 

      40N

    • B. 

      400N

    • C. 

      235N

    • D. 

      2350N

  • 7. 
    AN instrument use to measure Weight is ........ 
    • A. 

      Beam balance

    • B. 

      Simple balance

    • C. 

      Spring balance

    • D. 

      Electronic balance

  • 8. 
    10 kg of iron and 10 kg of feather are put into sack X and sack Y respectively.Which of the following statements is true? 
    • A. 

      Sack X has a larger volume than sack Y

    • B. 

      Sack X has a larger ma than sack Y

    • C. 

      Sack Y is denser than sack X

    • D. 

      Sack Y has the same weight as sack X

  • 9. 
    A 100kg rock is being hung freely on the Moon. When an astronaut pushes the rock upwards, he will feel that 
    • A. 

      The rock is easier to push than on Earth

    • B. 

      The rock is more difficult to push than on Earth

    • C. 

      The rock requires as much effort to push as on Earth

    • D. 

      The rock requires no effort to push

  • 10. 
    BONUS QUESTION!A cube of side 1 m has a mass of 7500 kg before a through hole of diameter50 cm is drilled on it. The hole is then completely filled with cement of density3.2 g/cm3. What is the density of the composite object?ANSWER = _____________ kg/m3(use pi as 3.14 AND answer in 2 decimal places)  
  • 11. 
    The SI unit for density is ......
    • A. 

      Kg/m3

    • B. 

      G/m3

    • C. 

      N/kg

    • D. 

      Kg/m

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