acceleration

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


  Investigating acceleration of an object
• How does varying the force affect the acceleration of an object?

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

  It affects the acceleration produced
• What equipment is used in the practical investigation?

  Toy car, string, pulley, mass, timer
• What provides the force acting on the toy car?

  The weight of the 100 gram mass
• How do you record the time the car passes each distance marker?

  Use a timer or record a video
• Why is it better to record the experiment on a mobile phone?

  It allows for accurate time recording
• What should you do after recording the first experiment?

  Repeat the experiment with less mass
• What is the effect of decreasing the mass on the end of the string?

  The force acting on the car decreases
• What is considered the object in this experiment?

  The toy car, string, and mass together
• What does Newton's second law of motion state about acceleration?

  It is proportional to the force applied
• What should you find regarding acceleration and the mass on the string?

  Acceleration is proportional to the mass
• How do you investigate varying mass effects on acceleration?

  Keep force constant and increase mass
• What mass is used to keep the force constant in the second part of the experiment?

  100 gram mass
• What happens to acceleration as the mass of the toy car increases?

  Acceleration decreases
• What does Newton's second law tell us about mass and acceleration?

  Acceleration is inversely proportional to mass