Area Under a Force-Displacement Graph

• What can be found from a force-displacement graph?

  The work done by a force
• What does the work done equal in a force-displacement graph?

  The area under the force-displacement graph
• What is the formula for work done?

  Work done = Force × Displacement
• How can work done be equivalent with different forces?

  A small force over a long displacement
• What may be necessary when calculating total area under a graph?

  Split the graph into sections
• What does the area underneath the force-displacement graph represent?

  The work done

  
• What are the steps to calculate work done from a graph?

  1. Split the graph into sections
  2. Calculate the area of each section
  3. Sum the areas to find total work done
• How do you calculate the area of a right-angled triangle?

  0.5 × base × height
• How do you calculate the area of a rectangle?

  base × height
• How do you calculate the total work done?

  Sum of both areas
• What is a variable force?

  A force that is not constant
• Why is a variable force more representative of real life?

  Because forces often change in reality
• What equations can be used if a force is constant?

  W = Fs and P = Fv
• What happens to an object's acceleration if a varying force increases?

  The object's acceleration increases
• What should you always check when calculating values from a graph?

  The units on the axes
• What is the distance the suitcase is pulled?

  25 m
• What is the final force applied to the suitcase?

  60 N
• What are the steps to calculate work done from a varying force?

  1. Sketch a force-displacement graph
  2. Split the graph into sections
  3. Calculate the area of each section
  4. Sum the areas to find total work done