CONCLUSION – Gravity Lab
ANSWER EACH QUESTION USING EITHER A COMPLETE SENTENCE
ANSWER OR BY SHOWING ALL WORK FOR ANY CALCULATION.
1. Define the force of Gravity. Describe how it affects things on Earth.
2. Analyze your height data. What was the calculated height of the building using
the total 7th grade data? Explain how this number was obtained.
3. What was the true measured height of the building? Explain how this was
determined.
4. Analyze your time data and calculate the average velocity of the falling tennis
balls. Use your group times for each t in the formula: (V = s/t)
a. .05 kg ball
b. .25 kg. ball
c. .50 kg. ball
5. Analyze your time data. The perfect time for any object falling off of the building
is 1.64 seconds. Compare the times and calculate the % error in timing using the
following average times calculated and the formula:
(% E = Difference / ideal time X 100)
a. your group avg. time b. your class avg. time c. total 7th grade avg. time
6. Using your Time versus Distance graph, draw prediction lines and predict the
distance an object would fall after 0.6 seconds and 1.4 seconds.
7. Using your Time versus Velocity graph, draw predictions lines and predict how
much time it would take for an object to reach the velocity of 3.00 m/s and 6.00
m/s.
8. A flock of seagulls, that have just eaten, are flying 10 meters above your
head. How much time do you have to get out of the way from anything
falling down on you? Use the following formula: (t = √ 2s/g)
(√ is square root)