In Part I, the independent variable was [___].
In Part II, the independent variable changed to [___].
The dependent variable for both Part I and Part II was [___].
The concept of energy can be calculated in multiple ways. Which units are used for energy? Check all that apply.jouleskilogram meters2/seconds2newtonskilojoulesmeters/seconds2
A 1,000 kg ball traveling at 5 m/s would have [___] kinetic energy.
A 50 kg ball traveling at 20 m/s would have [___] kinetic energy.
Which factors could be potential sources of error in the experiment? Check all that apply.energy lost in the lever due to frictioncolor of the soda bottle used in the experimentvisual estimation of height of the beanbagtemperature of the lab at the time of the experimentposition of the fulcrum for the lever affecting transfer of energy
If you repeated this experiment, which options could lead to more precise results? Check all that apply.Increase the drop heights from the top of a building, using the same lever.Use a video camera to record the height of each beanbag with greater accuracy.Use a pressure sensor to record the force of the soda bottle more accurately.Increase the number of trials for each experiment by a factor of three.Increase efficiency by examining mass and speed at the same time in the same trial.Throw the bottle at the lever as hard as you can, instead of dropping it, to create maximum KE.
A 10 kg ball traveling at 5 m/s would have [___] kinetic energy.
A 50 kg ball traveling at 5 m/s would have [___] kinetic energy.
A 100 kg person falling at 5 m/s would have [___] kinetic energy.
A 50 kg person falling at 10 m/s would have [___] kinetic energy.
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