Question 1 [3 marks] #

A spring has a spring constant of 25 N/m. Calculate the force needed to extend it by 0.08 meters.

Question 2 [4 marks] #

When a 2 N force is applied to a spring, it extends by 0.05 meters. Calculate:

1. The spring constant
2. The elastic potential energy stored in the spring at this extension

Question 3 [4 marks] #

The graph below shows the relationship between force and extension for a spring. Study it and answer the questions that follow:

1. What does point P represent on the graph?
2. Explain what happens to the spring after point P.

Question 4 [3 marks] #

A spring is compressed by 0.1 meters using a force of 4 N. What is the elastic potential energy stored in the spring? Show your working.

Question 5 [6 marks] #

A student performs an experiment with two springs A and B. When the same 5 N force is applied:

• Spring A extends by 0.25 meters
• Spring B extends by 0.1 meters

1. Calculate the spring constant for each spring
2. Which spring is stiffer? Explain your answer.
3. If both springs were stretched by 0.15 meters, which would require more force? Show your calculation.