The document describes an experiment to investigate how the acceleration of an object moving down an inclined track is affected by the angle of the track. The experiment uses a motion sensor, track, and cart to collect position, velocity, and acceleration data at different track angles. The results show that acceleration and velocity increase as the track angle increases, because the component of gravity parallel to the plane increases while the perpendicular component decreases. The motion sensor allows accurate measurement of motion data, and the software provides real-time graphs for analysis and observation of changes, making the experiment quick to set up and repeat.

2. Viviana Velenthia Micheal
D2010103XXXX
Dayang Sufinah Binti Datu Teng
D2010103XXXX
Darvina Lim Choo Kheng
D2010103XXXX

3. Introduction
• A data logger (also datalogger or data recorder)
is an electronic device that records data over time
or in relation to location either with a built in
instrument or sensor or via external instruments
and sensors. Increasingly, but not entirely, they
are based on a digital processor (or computer).
They generally are small, battery powered,
portable, and equipped with a microprocessor,
internal memory for data storage, and sensors.

5. Which is faster?

6. “Does the inclined track with a certain
angle affect the acceleration and
velocity of a moving object?”

8. Carrying out the experiment
Title : Acceleration-Cart on an inclined track with
different angle
Objective
• Investigate how acceleration of object depends on
the angle of the inclined tract by using the motion
sensor
• Determine the angle of the inclined track for each
different height, h
• Use the software to plot the graph of position,
velocity, and acceleration versus time for each trial.

9. Equipment and apparatus
Computer with USB port PASPORT motion sensor
PASPORT USB interface Data Studio software

10. Equipment and apparatus
Track
Retort stand
and clamp
Cart Ruler

11. Set-up of equipment and apparatus

12. Procedure
Computer setup
• The PASPORT USB interface is plugged into the
computer’s USB port.
• The motion sensor is plugged in into the USB
interface. The PASPortal window is automatically
launched.
• Appropriate DataStudio configuration is chosen.

13. Equipment setup
• The equipment is set up as shown in figure.
• The height of the point of release of the cart from
table surface is measured. Different heights (8cm,
12cm and 16cm) are used in this experiment. The
length of the track is also measured to obtain the
inclined angle.
Length of
track, l Height, h

14. • The motion sensor is placed at the raised end of the track
so it can measure the motion of the cart as it moves down
the inclined track. At the top of the motion sensor, the icon
‘Cart’ is selected.
• Cart is hold at the mark “15cm” of the track. When it is
released, the data is recorded. The experiment is repeated
by changing the height to 12cm and 16 cm to obtain 3 sets
of data.

15. Record Data
• The button Start is
clicked and the cart is released so
that it moves down the track.
• The button Stop is clicked
before the cart hits the end stop of
the track.

16. Analyze data
Velocity graph
• The smooth part of the velocity is highlighted. Then,
linear fit is selected from the fit
menu. The slope (the value of m) for the cart is then
recorded.
Acceleration graph
• The flat part of the acceleration is highlighted. Then,
linear fit is selected from the fit
menu. The slope (the value of m) for the cart is then
recorded.
• The value for the slope of the velocity to the mean of
acceleration is compared.

17. Result/Data
85cm 85cm 85cm
Length of track, h
8cm 12cm 16cm
Height, y
5.4° 8.1° 10.8°
Angle of inclined track, θ
0.6m/s2 1.0m/s2 1.2m/s2
Acceleration (slope = 0)
Velocity 0.43m/s2 0.80m/s2 1.17m/s2
Slope of
graph, (m)
Acceleration 0.0m/s3 0.0m/s3 0.0m/s3

18. Graph Angle: 5.4

19. Graph Angle: 8.1

20. Angle: 10.8
Graph

21. Questions:
• Describe the situation where an object slide
down at different inclined angle and the forces
that involved in it.
• What are the forces that acting upon an
accelerating object on inclined track and draw a
diagram to show the forces, plus state how the
acceleration is formed?
• From the result, describe how the acceleration is
affected by different inclined angles?
• What are the constant variables in this
experiment?
• What precaution/ precautions you took when
doing this experiment?

22. Experiment’s conclusion
Component Component
parallel to the perpendicular to the
plane, mg sin θ plane, mg cos θ
As the θ increase,
-mg sin θ increase
-mg cos θ decrease.
-Acceleration and
velocity increase.

23. Why the water flow faster at the upstream
compared to the water flow at the
downstream ?

24. The position, velocity Three different graphs can be
and acceleration of plotted at the same time
the cart can be
determined and
measured accurately Less work needs to be done by
using the motion the students
sensor.
The changes of the data and graph
can be observed immediately,
Discussion allowing students to make any
can be take changes or detect and overcome
part after the any errors in the experiment.
experiment
without
wasting more The experiment can be repeated
time many times to obtained the accurate
readings

25. Conclusion
Each of these experiments was very
quick and easy to set up. Using the
simplest mode of operation of the
software means that almost no
knowledge or experience of data
logging is required.