This document summarizes three physics experiments conducted by a student group on motion and forces. Experiment 1 measured the time taken for tin cans to roll different distances on an inclined plane. Experiment 2 measured the time taken for a ball to drop from various heights. Experiment 3 measured the time taken for a ball to be thrown upward and return to the starting point. The results were analyzed to determine relationships between distance, time, speed and acceleration based on equations of motion. Conclusions found relationships between the variables and that air resistance and gravity affect upward and downward motion.

1. Physics Laboratory
Experiments
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2. Welcome to Group 3
Reporting Experiments

3. Lab Experiment #1
Roll, roll and away!

4. Lab Experiment #1
Roll, roll and away!
Distance Time Time²
Trial 1 Trial 2 Trial 3 Average
40 cm 0.13 s 0.52 s 0.53 s 0.39 s 0.15 s
80 cm 0.73 s 0.79 s 0.78 s 0.77 s 0.59 s
120 cm 1.11 s 0.79 s 0.91 s 0.94 s 0.88 s
160 cm 1.31 s 1.25 s 1.31 s 1.29 s 1.66 s
200 cm 1.50 s 1.37 s 1.31 s 1.39 s 1.94 s
Gathered Data
Angle of Inclination: 30 ° Curious??
Lab Experiment #1
Roll, roll and away!

5. 0
0.5
1
1.5
2
2.5
40 cm 80 cm 120 cm 160 cm 200 cm
Average Time
Time Squared
Lab Experiment #1
Roll, roll and away!
Data Graph of Time and Time squared

6. Guide Question: What is the average speed?
Speed=
𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒
𝑡𝑖𝑚𝑒
Average Speed=
Σ 𝑠𝑝𝑒𝑒𝑑 𝑠𝑎𝑚𝑝𝑙𝑒𝑠
𝑁𝑜 𝑜𝑓 𝑠𝑎𝑚𝑝𝑙𝑒𝑠
S1=1.43 m/s
S2=1.24 m/s
S3=1.28 m/s
S4=1.04 m/s
S5=1.01 m/s
Average Speed=
𝑆1+𝑆2+𝑆3+𝑆4+𝑆5
5
Average Speed=
120 𝑚
5 𝑠
Average Speed= 1.20 𝑚/𝑠
Lab Experiment #1
Roll, roll and away!

7. Guide Question:
1. How will you describe the graphs of distance vs
time and distance vs time squared?
Ans: It was a slant line from low to higher direction.
2. Relationship between distance and time travel of
the rolling can?
Ans: distance and time travel are directly proportianal.
3. Slope of d vs. T ^2 graph? What quantity it
represent?
Ans: slanting, it represent the acceleration;m/s^2
Lab Experiment #1
Roll, roll and away!
Want to see Graph again?

8. Guide Question:
4. What do the graph suggests?
The graph suggest that tin cans speeding
uniformly in different distances.
Lab Experiment #1
Roll, roll and away!

9. Conclusion:
With our gathered data, experiments show
that distance, time, speed and acceleration are
having a relationship. Whatever the distance
speed are still uniform, and
Speed = Distance/Time
Time = Distance/Speed
Distance = Speed × Time
Lab Experiment #1
Roll, roll and away!

10. One experiment has been done
reporting!

11. Lab Experiment #2
Drop Me!
The pull of gravity acts on all objects. So the
earth when you throw up it will go down.Things
thrown upward always fall a constant of 9.8 m/s
this means that the velocity of an object in free
fall changes by 9.8 m/s every second of fall.

12. Trials Time Height
1 2.81 s 38.69 m
2 1.85 s 16.77 m
3 1.61 s 12.70 m
Average 2.09 s 21.40 m
Gathered Data
Curious??
Lab Experiment #2
Drop Me!
Actual height: 11.36 m

13. Tasks
Lab Experiment #2
Drop Me!
Actual height: 11.36 m
3. Calculate the height
H=1/2(9.8m/s)(t^2)=21 m
4. Calculate the final velocity
Final Velocity=√2(9.8m/s)h=21 m/s
5. Measure the actual height.
Actual height=11.36 m

14. Guide Question:
Lab Experiment #2
Drop Me!
Actual height: 11.36 m
1. What is the velocity of the ball before hitting ground?
Ans: 21 m/s using final velocity formula.
2. Comparison of the actual height and experiment result?
Ans: Experiment result having a large gap in assumption of delay
time record
3. What is the percentage error?
Ans: PE=((Actual height-experimental height)/actual height)100
= 88% error

15. Lab Experiment #2
Drop Me!
Conclusions:
Using formulas and data, we can say the velocity
of the ball is increasing start from zero then
ends up in 21 m/s proportionally in upward and
downward. Related to experiment No. 3 when
the ball become free fall its still the same
velocity in same point release the ball.
Lab Experiment #2
Drop Me!

16. Lab Experiment #3
You Raise Me Up!
As the ball goes up, It decelerates with
9.8m/s². Until it stop momentarily and change
direction means it reaches its maximum height
before it start to fall. The magnitude of two
velocities are equal but they have 2 direction
indicate as + for upward and – for downward.

17. Lab Experiment #3
You Raise Me Up!
Trials Total Time One way Time
1 3.35 s 1.68 s
2 3.20 s 1.6 s
3 3.18 s 1.59 s
Average 3.24 s 1.62 s
Gathered Data
Lab Experiment #3
You Raise Me Up!

18. Lab Experiment #3
You Raise Me Up!
Initial Velocity
Lab Experiment #3
You Raise Me Up!

19. Lab Experiment #3
You Raise Me Up!
Maximum Height
Lab Experiment #3
You Raise Me Up!

20. Lab Experiment #3
You Raise Me Up!
Trials Velocity Height
1 -16.42 m/s 41.24 m
2 -15.68 m/s 37.63 m
3 -15.58 m/s 37.16 m
Average -15.89 m/s 38.58 m
Gathered Data: Table 4
Lab Experiment #3
You Raise Me Up!

21. Guide Question:
1. What do you think will happen to the speed of the
ball as it reaches it’s maximum height?
Ans: At maximum height it will fall on zero then
suddenly increasing downward.
2. What will happen to the balls velocity as it falls
further below the point of release point?
Ans: It will have an equal velocity in same point then
increasing downward.
Lab Experiment #3
You Raise Me Up!

22. Lab Experiment #3
You Raise Me Up!
Conclusion
Due to air resistance, gravity when the ball
reach maximum height it momentarily stops
then change its direction going backward with a
speed of reverse sequence.
Lab Experiment #3
You Raise Me Up!

23. Reporting Completed!

24. Physics Laboratory
Experiments

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27. Physics Laboratory
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