INFORMATION AND COMMUNICATION

TECHNOLOGY IN SCIENCE(SS1 3013)

Data Logging

Group Members :

Viviana Velenthia MichealD2010103XXXX

Dayang Sufinah Binti Datu Teng D2010103XXXX

Darvina Lim Choo KhengD2010103XXXX

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.

Let play sliding!

Acceleration And Velocity –

Cart on an inclined track with different

angles

Which is faster?

ENGAGE

“Does the inclined track with a certain angle affect the acceleration and

velocity of a moving object?”

PROBLEM STATEMENT

EMPOWER

Carrying out the experimentTitle : 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.

Equipment and apparatus

Computer with USB port PASPORT motion sensor

PASPORT USB interface Data Studio software

Equipment and apparatus

Track

Cart Ruler

Retort stand and clamp

Set-up of equipment and apparatus

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.

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.

Height, h

Length of track, l

• 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.

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.

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.

Result/Data

Length of track, h85cm 85cm 85cm

Height, y8cm 12cm 16cm

Angle of inclined track, θ5.4° 8.1° 10.8°

Acceleration (slope = 0)0.6m/s2 1.0m/s2 1.2m/s2

Slope of graph, (m)

Velocity 0.43m/s2 0.80m/s2 1.17m/s2

Acceleration 0.0m/s3 0.0m/s3 0.0m/s3

Graph Angle: 5.4°

Graph Angle: 8.1°

Graph Angle: 10.8°

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?

Experiment’s conclusion

Component parallel to the plane, mg sin θ

Component perpendicular to the plane, mg cos θ

As the θ increase,

-mg sin θ increase

-mg cos θ decrease.

-Acceleration and velocity increase.

Why the water flow faster at the upstream compared to the water flow at the

downstream ?

ENHANCE

Unique Features Of This Activity

The position, velocity and acceleration of the cart can be determined

and measured accurately using the

motion sensor.

Three different graphs can be plotted at the same time

Less work needs to be done by the students

Discussion can be take part

after the experiment

without wasting more

time

The changes of the data and graph can be observed immediately, allowing students to make any changes or

detect and overcome any errors in the experiment.

The experiment can be repeated many times to obtained the accurate readings

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.

THE END……

THANK YOU