BALANCE SCALES
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Definition of Balance Scales
Balance Scales are the set of scales used to measure the weight of the objects.
More About Balance Scales
 There are two equal pans (weighing pans) hanged to a scale at equal distance in a balance scale
 Balance scale contains a beam that tilts towards the pan with more weight. If both the pans have same weight, then the beam remains in a state of equilibrium
Video Examples: Balance Scale
Examples of Balance Scales
Balance Scales:
Balance Scales:
Solved Example on Balance Scales
Ques: Jake, while measuring the weight of a watermelon on a balance scale, put weights of 6 lb and found that the pan with the watermelon was tilting slightly down. He again put a weight of 8 oz and found both the pans balanced. What could be the weight of the watermelon?
Choices:
A. 6 lbB. 6.5 lb
C. 5 lb
D. 5.6 lb
Correct Answer: B
Solution:

Step 1: Weight of the watermelon = First weight + Second weight
Step 2: = 6 lb + 8 oz [Given]
Step 3: = 6 lb + 0.5 lb [1 lb = 16 oz]
Step 4: = 6.5 lb [Add]
Step 5: So, the weight of the watermelon is 6.5 lb.
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