Force And Extension Of A Spring Paper2 Flashcards
What is extension in the context of a spring?
How much the length has increased from its original length
Extension is measured when a force is applied to the spring.
What is the main purpose of the GCSE Required Practical on force and extension of a spring?
To find out the relationship between force and extension
This practical investigates how springs react to applied forces.
What does Hooke’s Law state?
Extension is directly proportional to the force applied, as long as the limit of proportionality is not exceeded
Hooke’s Law applies to elastic materials within their elastic limit.
What is the limit of proportionality?
The point beyond which the extension is no longer directly proportional to the force applied
This is where the graph of force versus extension no longer forms a straight line.
What apparatus is commonly used in this practical to measure the length of the spring?
Metre rule
The metre rule is used to measure the original and extended lengths of the spring.
What is the independent variable (IV) in this experiment?
Force applied (weights)
The force is varied by adding different weights to the spring.
What is the dependent variable (DV) in this experiment?
Extension of the spring
The extension is measured as the spring is subjected to different forces.
True or False: The extension of the spring should be zero when no weights are applied.
True
If the spring is measured without weights, its extension should theoretically be zero.
What error could occur if the length of the spring is measured instead of the extension?
The extension may not start at zero, as the spring will have a few cm of initial length
This can lead to inaccuracies in measuring the true extension.
What factors may be commented on regarding the experiment’s repeatability?
Resolution, measurement errors, and consistency of results
These factors affect how reliable the experiment’s outcomes are.
