Lab Worksheet Part One: The Lab
1
You will be helping Galileo perform the experiment to determine if objects with different mass
fall at the same, or different, rates in the air and in a vacuum. Before you conduct your
experiment, you need to form a hypothesis. A hypothesis is a prediction of what you think will
happen in the experiment. The hypothesis is a statement that describes ir a certain set of
circumstances are present then there will be a specific result that will occur.
Record your hypothesis here:
2. Record the results from step one of the experiment (dropping the objects in the air)
First trial
Second trial
Third trial
3. Record the results from step two of the experiment (dropping the objects in a vacuum)
First trial
Second trial
Third trial

conservation of mass

mass before something happens = mass afterwards

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.