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Everyday application of the basic principles of Mechanics

13. 

Which of the following is true A. magnitude and a direction is Vector B. Magnitude only is scalar

A. A alone B. B alone C. A and B are true D. None of the above

Answer : C. A and B are true

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14. 

Gravity is a ___________ value

A. Vector B. Scalar C. Vector or Scalar D. Vector and Scalar

Answer : A. Vector

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15. 

A person mass is measured on the moon and on Earth. Which of the following is correct

A. Mass on the Moon will be double than Earth B. He will have only half of the Mass of Earth in Moon C. The Mass will be same on the Moon as it was on Earth D. All of the above

Answer : C. The Mass will be same on the Moon as it was on Earth

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16. 

Which of the following is true
A. The gravity of Earth is 9.8 m/s2
B. The gravity of Moon is 1.6 m/s2

A. A alone B. B alone C. A and B are true D. None of the above

Answer : C. A and B are true

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17. 

Distance / Time is

A. Time B. Acceleration C. Force D. Speed

Answer : D. Speed

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18. 

The amount of matter in an object is

A. Mass B. Motion C. Force D. All

Answer : A. Mass

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