Please enable JavaScript.
Coggle requires JavaScript to display documents.
Acceleration Due to Gravity - Coggle Diagram
Acceleration Due to Gravity
How Data is collected
Ultrasonic sensor
Measured velocity through the spark Vue application
Final Velocity can be inputted into the equation in order to find Acceleration
Safety/Ethical
Care
Care was taken during the experiment to ensure that any risk of objects being dropped from a height was minimal and there was no one near the "drop zone" so that they would not be injured when the basketball was dropped
Covid 19
To ensure the coronavirus is not spread in the experiment all materials used were disinfected before and after they were used
Equipment
Ultrasonic Sensor
Measures the velocity of an object at any given point in time for a time period.
Laptop
Records and graphs the data collected by the Ultrasonic sensor.
Basketball
Sufficient size for the ultrasonic sensor to measure velocity, but does not have significant air resistance
Measuring Tape
Allows for heights to be measured effectively and accurately
Risks
injury caused by falling objects
There was the risk of objects falling from the height onto someone which could cause injury, as well as objects that would be damaged being near the height, therefore there was a risk of the laptop and sensor being dropped
Objects being dropped and breaking
If an object used to measure the results of the experiment, such as the ultrasonic sensor the fall could break the equipment
Limitations
Human Errors
Depending on when the sensor begins recording, if the ball is dropped before the sensor begins recording than the initial velocity will greater than 0
The ball may not be dropped form the same height each repetition of the experiment, which could mean for inaccurate readings on the ultrasonic sensor
Environmental Errors
Weather
Wind and other such weather events can impact the trajectory of the ball, therefore impacting the results of the experiment
Air Resistance
Larger objects, such as a basketball being dropped from a height may experience air resistance which slows the acceleration due to gravity. there is more friction acting upon the ball, slowing it down.
Systematic Errors
Ultrasonic Sensor
the sensor may produce an incorrect reading of the velocity of the ball.
Laptop
May produce an incorrect graph of the results, displaying them incorrectly
Availability of Particular apparatus
Apparatus that measure the acceleration of an object are not available in the school laboratory as they are specialized equipment, items such as a radar gun would measure the velocity of the object but are unavailable for the experiment
Variables
Controlled
The weight and size of the ball used
The same recording equipment
Independent
Height the ball is dropped at
Dependent
Final velocity is the result that the experiment finds, this result is then inputted into an equation in order to find acceleration