Physics Project
Section A
How does the engine size(capacity) of a motor car relate to the acceleration of the car?
Hypothesis: The acceleration of a car will increase if the size(capacity) of the engine increases. The car with the biggest engine capacity will take the fastest to reach the velocity of 60km/h from rest position. Method: 1) Arrange to use three different hatchback cars with different engine capacities, but similar masses. 2) Sit in the passenger seat with a stopwatch, while a parent will accelerate. 3) Press start when the car is standing still at 0km/h and press stop once the the cars velocity has reached 60km/h. 4) Record the results. 5) Repeat step 2,3 and 4 respectively with the other two cars. 6) Tabulate the results.
Indepentant Variable
Dependant Variable
Constant Variables
Three cars, with different size engines
Time it takes to reach 60km/h (seconds)
Maximum speed of 60km/h
Weather conditions (temprature)
Same brand of car
The route driven
Cars
Time it takes to reach 60km/h (sec)
Volkswagen Polo 1.2
6.48
Volkswagen Polo 1.4
6.01
Volkswagen Polo 1.6
5.26
Calculations:
Volkswagen Polo 1.2
Volkswagen Polo 1.4
Volkswagen Polo 1.6
Bar Graph:
A bar graph that shows the relationship between the capacity of different cars engines and the time, in seconds, it takes for the car to reach 60km/h
Conclusion: The hypothesis has been accepted. The Polo 1.6 had the biggest engine capacity and it’s acceleration was the highest. It also took the Polo 1.6 the fastest to reach a velocity of 60km/h from rest position.
Improve the investigation: I should test this again to make sure I have the
How does the engine size(capacity) of a motor car relate to the acceleration of the car?
Hypothesis: The acceleration of a car will increase if the size(capacity) of the engine increases. The car with the biggest engine capacity will take the fastest to reach the velocity of 60km/h from rest position. Method: 1) Arrange to use three different hatchback cars with different engine capacities, but similar masses. 2) Sit in the passenger seat with a stopwatch, while a parent will accelerate. 3) Press start when the car is standing still at 0km/h and press stop once the the cars velocity has reached 60km/h. 4) Record the results. 5) Repeat step 2,3 and 4 respectively with the other two cars. 6) Tabulate the results.
Indepentant Variable
Dependant Variable
Constant Variables
Three cars, with different size engines
Time it takes to reach 60km/h (seconds)
Maximum speed of 60km/h
Weather conditions (temprature)
Same brand of car
The route driven
Cars
Time it takes to reach 60km/h (sec)
Volkswagen Polo 1.2
6.48
Volkswagen Polo 1.4
6.01
Volkswagen Polo 1.6
5.26
Calculations:
Volkswagen Polo 1.2
Volkswagen Polo 1.4
Volkswagen Polo 1.6
Bar Graph:
A bar graph that shows the relationship between the capacity of different cars engines and the time, in seconds, it takes for the car to reach 60km/h
Conclusion: The hypothesis has been accepted. The Polo 1.6 had the biggest engine capacity and it’s acceleration was the highest. It also took the Polo 1.6 the fastest to reach a velocity of 60km/h from rest position.
Improve the investigation: I should test this again to make sure I have the