The graph of the relationship between the force and the extension of two spring balances is given.
Answer the following questions:
Which spring balance can measure a greater force? What is this force and how much extension of the spring does it cause?
What forces cause an extension of 4 cm for both spring scales?
For both spring balances, determine to what limit the force is directly proportional to the extension.
The second spring balance has 10 divisions on the scale. What is the force represented by the gap between two divisions?
What can happen if we load the first spring balance with a force of 5 N?
