IoT Project Velocity

Abstract :
Speed and velocity are rates. They tell us how much distance is covered in a unit of time. Velocity can be expressed by the formula

v = d/t

where v = velocity or speed (in m/s), d = distance traveled (in meters), and t = time (in sec). In this experiment, you will study the velocity of a car after it is released from different points on a ramp. A Motion Detector will be used to measure velocity.

1. INTRODUCTION

Natural Phenomenon Observed :

What would happened next :
 
Whar other say about that phenomenon: 

My Hipothesis :

2. EXPERIMENTALPLANNING : 

Which Variable would influence my hypothesis

How Could I measure those variables

Preparing Sample and Device Apparatus

MATERIALS

Power Macintosh or Windows PC

several books

Vernier computer interface

meter stick

Logger Pro

masking tape

Vernier Motion Detector

car

1.8-m board

small index card

Procecure of Experiment :

1.   Prepare the track.

a.   Set up a ramp on books as shown in Figure 1. The high end of the ramp should be 45 cm above the floor.

b.   Place a meter stick down the center of the ramp. The 0-cm mark on the meter stick should be at the very bottom of the ramp. Tape the meter stick to the ramp in two places. The meter stick will serve as a guide rail for your car.

c.Fasten the Motion Detector at the top and center of the ramp as shown in Figure 1. Connect the Motion Detector to of the LabPro or 2 of the Universal Lab Interface. (Note that the second input is used in both cases!)

2.   Use tape to fasten a small index card to the back of the car you will be using. The card acts as a reflective surface for the Motion Detector.

3.   Prepare the computer for data collection by opening the file in the Experiment 34 folder of Middle School Science with Computers.

4.   Collect data.

a.   Place your car on the ramp with its front wheels at the 40-cm line.

b.   Click . Release the car after you hear a sound coming from the Motion Detector.

c.When data collection has ended, click the Statistics button, . Record the maximum velocity in the Data table.

5.   Repeat Step 4 two more times.

6.   Repeat Steps 4 and 5 at distances of 70 cm and 100 cm.

3. EXPERIMENTING:

Data Acquisition

Data Observations

Data Measurment

DATA

	Velocity (m/s)
Release point	Trial 1	Trial 2	Trial 3	Average
40 cm
70 cm
100 cm

 

Data organising in table and graph

4. ANALYSIS

Qualitative Analysis

Quantitative Analysis

1. Calculate the average velocity for each release point. Show your work here. Record the results in the Data table above.

2.   Make a graph of your data. Plot Release Point (in cm) on the horizontal or x-axis and Average Velocity (in m/s) on the vertical or y-axis.

3.   What happens to the velocity of the car as you release it from higher points?

4.   How does friction affect the velocity of your car?

5.   How could you improve your car to make it roll faster?

6.   Describe one way you could change the ramp to make the car go faster, without changing the release points.

Comparison and Agreement amongst My Data

Comparison and Agreement with other experimental data

Comparison with Theory

Error Identification

Cause and Effect analysis

Data Trend and Model Formulation

5. CONCLUDING REMARKS

 

 

 

 

PROCESSING THE DATA

1.   Calculate the average velocity for each release point. Show your work here. Record the results in the Data table above.

 

2.   Make a graph of your data. Plot Release Point (in cm) on the horizontal or x-axis and Average Velocity (in m/s) on the vertical or y-axis.

3.   What happens to the velocity of the car as you release it from higher points?

 

4.   How does friction affect the velocity of your car?

 

5.   How could you improve your car to make it roll faster?

6.   Describe one way you could change the ramp to make the car go faster, without changing the release points.