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1. 1.

   Write T for the true statement and F for the false one. Correct the false statement(s).

   1. The cubit is an example of a standard unit of length.
   2. The commonly used unit for measuring large distances is kilometre.
   3. The SI unit of length in millimetre.
   S A M P L E

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   Answer:

   S A M P L E

   1. False The cubit is an example of a non-standard unit of leng...
   2. T...
   3. False The SI unit of length is the...
2. 2.

   Convert the following.

   1. 250 cm = ____________ mm
   2. 5000 m = ____________ km
   3. 200 km = ____________ cm
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   Answer:

   S A M P L E

   1. 250 cm = 2500 mm
   2. 5000 m = 5 km
   3. 200 km = 2000000 cm
3. 3.

   Name a unit of length that is not a standard unit.

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   Answer:

   S A M P L E

   Unit of length that is not a standard unit are, Cubit Hand ...

4. 4.

   Is kilometer a standard or a non-standard unit?

5. 5.

   Is one millimeter larger or smaller than one centimeter?

6. 6.

   Identify the type of motion in the following examples.

   1. A train moving on a straight track.
   2. A stone thrown up in the air.
   3. The blades of a rotating fan.
   4. The hands of a clock.
   5. The plucked string of a guitar.
   6. Birds gliding in the sky.
   7. The Earth spinning on its axis.