Using Practical Equipment & Materials
- Choosing the right equipment and knowing how to use it for a physics experiment is crucial
- A list of common apparatus is shown below:
A selection of apparatus commonly used in physics experiments
- When using measuring instruments such as those listed above, it is important to be aware of what each division on a scale represents
- This is known as the resolution
- The resolution is the smallest change in the physical quantity being measured that results in a change in the reading given by the measuring instrument
- The smaller the change that can be measured by the instrument, the greater the degree of resolution
- For example, a standard mercury thermometer has a resolution of 1°C whereas a typical digital thermometer will have a resolution of 0.1°C
- The digital thermometer has a higher resolution than the mercury thermometer