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How can we change the acceleration of an object?
How can we change the acceleration of an object?
HS-PS2-1.
Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration.
Using the given materials: Pulley, Cart, String, and Masses, devise a way to change and measure the acceleration of the cart.
At the end of your experimentation, you should be able to state:
First, we changed the force (cause) and the effect on the acceleration was ...
Second, we changed the mass (cause) and the effect on the acceleration was ...
Raw Data Graphing
Raw Data Graphing
Position v. Time Graph
Lary was collecting data relating the mass of a cart and the acceleration of the cart, but he forgot to label his trials. The graph to the right shows his results from the following trials:
Cart (0.288kg)
Cart + 1 (0.412kg)
Cart + 2 (0.535kg)
Cart + 3 (0.659kg)
Cart + 4 (0.783kg)
Help Lary to determine which graph corresponds with the correct setup. Support your claim with appropriate scientific vocabulary and rationale.
The data to the right is the velocity v. time data from the same experiment.
The colors from the position v time graph and the velocity-time graph represent the same trials.
Describe how the slope (gradient) of the different trials relate to the acceleration of the cart.
Support your description with the appropriate scientific vocabulary and rationale.
Velocity v. Time Graph
Graphs of Collected Data
Graphs of Collected Data
The graph to the left shows the data that Lary collected while experimenting with changing the FORCE while keeping the total mass of the system constant. The data can be found HERE.
Using the graph as evidence, make a claim regarding how changing a force effects the acceleration of an object.
The graph to the right shows the data that Lary collected while experimenting with changing the FORCE while keeping the total mass of the system constant. The data can be found HERE.
Using the graph as evidence, make a claim regarding how changing a mass of a system effects the acceleration of an object.
Most groups sketched their data as shown above. What are some of the limitations of the graph above?
How can we use data to support a claim?
How can we use data to support a claim?
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