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Motion and Time Test - 13

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Motion and Time Test - 13
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following clocks is most accurate?
    Solution
    Caesium clocks are the most accurate commercially produced time and frequency standards, and serve as the primary standard for the definition of the second in SI system.

    Hence, Caesium clock is most accurate clock
    Option C is correct.
  • Question 2
    1 / -0
    Which of the following is used as measuring time?
    Solution
    An hourglass (or sandglass, sand timer, sand clock or egg timer) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one.
  • Question 3
    1 / -0
    When will a body have zero speed?
    Solution
    The distance travelled by a body per unit time is known as speed.
    $$speed=\dfrac{distance}{time}$$
    A body has zero speed when it has zero distance covered in an interval of time and hence the body is at rest.
  • Question 4
    1 / -0
    Which of the following is not used to measure time?
    Solution
    The candle clock was used to measure time in ancient times whereas nowadays, computers, mobile,s, and wristwatches are used to measure time.
  • Question 5
    1 / -0
    Which of the following is required to facilitate the measurement of time?
    Solution
    In order to facilitate the measurement of time, a periodic event is required along with a device to calibrate the measured time.
    Thus option D is correct.
  • Question 6
    1 / -0
    $$4.15\ p.m$$. in $$12$$ hour system is written as _____ in $$24$$ hour clock system.
    Solution
    In $$24$$ hour clock system , $$4.15\ p.m.$$ will be written as 
                  $$12+4.15=12 hrs+ 4 hrs+ 15 minutes= 16hours\ 15 minutes$$
  • Question 7
    1 / -0
    How many days are present between the years 2005 and 2008 including these years? 
    Solution
    We know that, in one year, there are $$365$$ days. Out of  the year $$2005, 2006, 2007$$ and $$2008$$, the year $$2008$$ is a leap year which has $$366$$ days.
    So, total number of days  $$ = 365+365+365+366 = 1461$$ days
  • Question 8
    1 / -0
    The meter that is used to measure the distance moved by the vehicle is known as _____. Fill in the blank.
    Solution
    Odometer is an instrument used in the vehicle to measure the distance cover by it.
  • Question 9
    1 / -0
    Speedometer drive is usually taken from :
    Solution
    Speedometer drive is usually taken from front wheel.
  • Question 10
    1 / -0
    What is the use of speedometer in a vehicle?
    Solution
    Speedometer in the vehicle shows the instantaneous speed of the vehicle.
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