Physics Uniform accelerated 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!

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