Required Practical 7:Acceleration

• What is the main objective of the practical investigation described?

  To investigate how varying the force and mass affects the acceleration of an object.
• What equipment is used in the practical investigation?

  • Toy car
  • String
  • Pulley
  • 100 gram mass
  • Timer
  • Chalk for distance markers
• How does the weight of the mass affect the toy car in the experiment?

  The weight of the mass provides the force acting on the toy car.
• What method is suggested for accurately recording the time of the toy car's movement?

  Record the experiment on a mobile phone and play it back.
• What is the relationship between force and acceleration according to Newton's second law of motion?

  • Acceleration is proportional to the force applied.
  • Force is the weight of the mass on the end of the string.
• What happens to the acceleration of the toy car when the mass on the end of the string is decreased?

  The acceleration of the toy car increases.
• How does the experiment investigate the effect of varying mass on acceleration?

  • Keep the force constant (e.g., 100 grams).
  • Attach varying masses to the toy car.
  • Record the acceleration as mass increases.
• What does Newton's second law state about the relationship between mass and acceleration?

  Acceleration is inversely proportional to the mass of the object.
• What should be expected when increasing the mass of the toy car while keeping the force constant?

  The acceleration of the toy car decreases.