rp6: stretching a spring

• method:

  1. set up a clamp stand & hang a spring from a clamp
  2. fix a metre rule vertically alongside the spring with another clamp
  3. read bottom of spring on metre rule - unstretched length
  4. hang a 1N weight on the spring
  5. read the new position of the bottom of the spring on the metre rule & record - stretched length
  6. to work out the extension, subtract the length of the unstretched length from each reading
  7. repeat with different weights

  
• what happens if u add too many weights?

  inelastic deformation - exceeding the limit of proportionality
• what equation is used to calculate the spring constant?

  spring constant = force / extension
• risk assessment- rp6: stretching a spring

  • stand up so you can move out of the way to avoid clamp falling on feet
  • wear safety goggles as spring could break and damage eye