required practical : acceleration

• What is the main objective of the practical described in the video?

  To investigate how varying force and mass affect the acceleration of an object
• How does varying the force affect the acceleration of an object of constant mass?

  It increases the acceleration of the object
• What happens when varying the mass of an object while keeping the force constant?

  The acceleration produced by the constant force decreases
• What equipment is used in the practical investigation?

  • Toy car
  • String
  • Pulley
  • 100 gram mass
  • Timer
  • Chalk for distance markers
• How is the force acting on the toy car provided in the experiment?

  By the weight of the 100 gram mass attached to the string
• What method is suggested for accurately recording the time of the toy car's movement?

  Recording the experiment on a mobile phone and playing it back
• Why is it important to keep the overall mass of the object constant during the experiment?

  To ensure that the results accurately reflect the effect of changing force
• What does Newton's second law of motion state about acceleration?

  Acceleration is proportional to the force applied
• What is the relationship between acceleration and the mass of the object according to Newton's second law?

  Acceleration is inversely proportional to the mass of the object
• If a 100 gram mass is used to provide force, what happens when the mass attached to the toy car is increased to 200 grams?

  The acceleration of the toy car will decrease
• What are the steps to carry out the practical investigation?

  1. Set up the equipment with the toy car, string, pulley, and mass.
  2. Draw chalk lines at equal intervals.
  3. Release the toy car and record the time it passes each marker.
  4. Repeat the experiment with decreasing mass on the string.
  5. Analyze how changing force affects acceleration.
  6. Investigate how varying mass affects acceleration with constant force.
• Where can students find additional questions related to this practical investigation?

  In the revision workbook linked in the video