Calculating the energy of springs (E = 1/2 kx²)

12 questions

1. Which of the following describe work done?
2. A pupil stretches a spring. Which of the following statements is correct?
3. Which of the following can be used to describe the spring constant of a spring?
4. Which of the following is a unit of energy?
5. Two springs, A and B, are equal in length. Identical masses are hung from the springs which do not stretch beyond their limits of proportionality.Which of the following statements are correct?
6. A pupil wants to calculate a kinetic energy using the formula: kinetic energy = \frac{1}{2}mv^2. Which of the following calculations will give them the correct answer?
7. Which of the following words means ‘make something smaller using forces’?
8. A spring has a length of 10 cm. Starting with the least energy transferred to the elastic store, sort the following deformations into order of increasing energy.
9. A pupil stretches a spring. The work done by the pupil is equal to …
10. A spring of length 6.0 cm has spring constant 960 N/m. How much energy does it gain if it is stretched to 8.0 cm?
11. A spring is stretched by 4.0 cm, transferring 96 J of energy to the elastic store.What is the spring constant of the spring?
12. A spring has spring constant 2000 N/m. The spring is stretched, transferring 250 J of energy to the elastic store. What is the extension of the spring?

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