Students are going to conduct an experiment to study the effect of a net force applied

Answer 1

on the motion of an object. They will use a toy car and vary the applied force to see how it affects the car's acceleration. Here is a step-by-step guide on how to conduct this experiment:

Materials needed:
1. Toy car
2. Ramp or smooth track
3. Various weights (books, small objects, etc.)
4. Stopwatch or timer
5. Measuring tape or ruler
6. Notebook or data sheet
7. Pen or pencil

Procedure:
1. Set up the ramp or smooth track. Ensure that it is level and stable.
2. Place the toy car at the top of the ramp or track.
3. Determine the starting position of the car by measuring the distance from the starting point to a reference point on the ramp or track. Record this distance in your notebook as the initial position.
4. Attach a weight to the car. Start with a small weight and gradually increase it for each trial.
5. Gently release the car from the starting position and start the stopwatch or timer.
6. Observe and record the time it takes for the car to reach a predetermined point down the ramp or track. This can be a marked spot or a specific distance from the starting point.
7. Measure the final position of the car from the reference point and record it in your notebook.
8. Calculate the displacement of the car by subtracting the initial position from the final position.
9. Calculate the time taken for the car to reach the predetermined point.
10. Calculate the acceleration of the car using the equation: acceleration = (final velocity - initial velocity) / time taken.
11. Repeat steps 4-10 for different weights on the car, ensuring that you reset the car to the initial position each time.
12. Plot a graph of force (weight) applied on the car versus acceleration. The force applied is equal to the mass of the weight multiplied by the acceleration due to gravity (F = m * g), where g is approximately 9.8 m/s^2.
13. Analyze your results and draw conclusions based on the trend observed in the graph. Discuss any observations or patterns you noticed during the experiment.
14. Record your findings in your notebook and write a conclusion summarizing the effect of net force on the acceleration of the object.

Safety considerations:
1. Ensure that the ramp or track is stable and does not move during the experiment.
2. Use weights that are appropriate for the toy car so that it does not tip over or become unstable.
3. Keep hands and fingers clear of the car's path during its motion.
4. Perform the experiment in a safe and open area where there are no obstacles or hazards.
5. If using heavy objects as weights, be cautious and ask for assistance if needed to avoid injury.

Remember to follow proper scientific method protocols and use multiple trials for each weight to ensure accuracy and reliability of your results.