std 3SCERT Maths [lesson 10 Measuring weights]

 Lesson 10

Measuring Weights


*Weight of objects are expressed using standard units.

*Devices or Instruments[weighing machines] used to measure the weight of objects are Beam balance, Spring balance, Digital balance.

*Weight of different values are used to weigh objects when balancing scales are used










* measuring units of measuring weight is gram
or kilo gram.

*gram is smaller unit for measuring weight.

*Balance is the instrument used to measuring weight.

1000 Grams=1 kilo gram

or

1000g=1kg

*Spring balance, common balance, Weighing machine, Platform balance are instrument to find the weight things. Weighing machine used to find our weight.










Quarter kilo gram=250g
Half kilo gram=500g
Three forths of kilo gram =750g



activity 1[How many times each measuring weight is to be used to 1 kg?














Activity 2[converting kilo gram into grams]

*1kg = 1000g
*4kg=4000g
*14kg=14000g
*7 1/2kg

7kg = 7000g+
1/2kg=500
.---------------
7500g



































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