| Extension of elastic objects is proportional to the force applied. | Proportional Extension |
| How does the extension of an elastic object relate to the force applied? | If an object is elastic (like a spring), the extension is directly proportional to the force applied. |
| There's a linear relationship between force and extension, seen by plotting a graph of force against extension. | Linear Relationship |
| What type of relationship exists between force and extension in elastic objects? | There is a linear relationship between force and extension. |
| The extension is only proportional to the force until the object reaches its limit of proportionality. Beyond this limit, the object won't return to its original length. | Limit of Proportionality |
| What happens when an elastic object is stretched past its limit of proportionality? | If an object is stretched past the limit of proportionality, it won't return to its original length. |
| Beyond the limit of proportionality, the graph of force against extension is no longer a straight line, indicating a non-linear relationship. | Non-Linear Relationship |
| How does the graph of force against extension change beyond the limit of proportionality? | Beyond the limit of proportionality, the graph of force against extension is no longer a straight line, showing a non-linear relationship. |
| There's an equation to describe linear elastic distortion. The equation is ? = ?? | Equation for Force and Extension |
| The equation is true for both compression and extension of elastic objects. The symbol "x" represents either compression or extension. | Compression and Extension |
| What does the symbol "x" represent in the equation ? = ??? | It represents either compression or extension. |
| To find the extension of a spring, subtract the original length of the spring from the final length. | Finding Extension |
| How do you find the extension of a spring? | Subtract the original length of the spring from the final length. |
| The spring constant is a measure of the stiffness of a spring (or other elastic object). It is different for different elastic objects. | Spring Constant |
| What does the spring constant measure? | The stiffness of a spring or other elastic object. |
| The greater the spring constant of a spring, the stiffer the spring. | Greater Spring Constant |
| What does a greater spring constant indicate about a spring? | It indicates that the spring is stiffer. |
| The spring constant (k) can be calculated using the equation ? = ?? or from the gradient of the graph of force against extension. | Calculating Spring Constant |
| How can the spring constant (k) be calculated? | Using the equation ? = ?? or from the gradient of the graph of force against extension. |
| You can calculate the work done in stretching a spring. | Work Done in Stretching a Spring |
| What happens when a force stretches or compresses a spring? | A force that stretches (or compresses) a spring does work on it. |
| The work done on the spring is stored as elastic potential energy. | Elastic Potential Energy |
| What happens to the work done on a spring? | It is stored as elastic potential energy. |
| When the spring is released, the elastic potential energy is released. | Release of Spring |
| What happens when a stretched spring is released? | The elastic potential energy is released. |
| If not elastically deformed, the work done on the spring is equal to the elastic potential energy stored. | Work Done and Elastic Potential Energy |
| Under what condition is the work done on a spring equal to the elastic potential energy stored? | If the spring is not elastically deformed. |
| The work done in stretching a spring can be calculated with an equation: | Equation for Work Done |
| The equation only works if you don't go beyond the limit of proportionality. | Limit of Proportionality |
| When does the equation for calculating work done on a spring apply? | The equation only works if you don't go beyond the limit of proportionality. |
