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P5: Quiz 8
P5: Quiz 8
1) Write down the equation that links force, extension and spring constant. Give the units for the values as well.
2) A student carries out an experiment to investigate the link between force and extension of a spring. He uses the apparatus shown below.
2) A student carries out an experiment to investigate the link between force and extension of a spring. He uses the apparatus shown below.
a) Explain how the student can use the apparatus above to investigate the link between force and extension of a spring.
b) The results of the student’s experiment are shown in the table below.
b) The results of the student’s experiment are shown in the table below.
i) Plot her results on the graph below.
ii) Use your graph to estimate the force for the limit of proportionality.
iii) Use your graph to estimate the spring constant.
3) Write the formula that we use to calculate the elastic potential energy of an elastic object. Write the units for all of the values as well.
4) A student stretches a spring 0.2 metres. The spring has a spring constant of 40 N/m. Work out the energy in the spring’s elastic potential energy store.
5) A spring has a spring constant of 42 N/m. Work out the amount of energy in the spring’s elastic potential energy store when it is compressed by 30 cm.
6) A student stretches a spring a certain distance. The spring has a spring constant of 80 N/m and the spring has 0.9 joules in its elastic potential energy store. Find the distance that the spring is stretched. Give your answer in cm.
7) When a spring is stretches by 28 cm, it has 5.88 joules in its elastic potential energy store. Find the spring constant for the spring.
iii) Use your graph to estimate the spring constant.
3) Write the formula that we use to calculate the elastic potential energy of an elastic object. Write the units for all of the values as well.
4) A student stretches a spring 0.2 metres. The spring has a spring constant of 40 N/m. Work out the energy in the spring’s elastic potential energy store.
5) A spring has a spring constant of 42 N/m. Work out the amount of energy in the spring’s elastic potential energy store when it is compressed by 30 cm.
6) A student stretches a spring a certain distance. The spring has a spring constant of 80 N/m and the spring has 0.9 joules in its elastic potential energy store. Find the distance that the spring is stretched. Give your answer in cm.
7) When a spring is stretches by 28 cm, it has 5.88 joules in its elastic potential energy store. Find the spring constant for the spring.