Spike Prime - Average Speed - Revision history

Robot at 14:40, 28 February 2020

2020-02-28T14:40:56Z

Robot at 08:19, 12 February 2020

2020-02-12T08:19:20Z

Robot at 08:17, 12 February 2020

2020-02-12T08:17:14Z

Robot at 08:04, 12 February 2020

2020-02-12T08:04:22Z

Robot: /* Program */

2020-02-12T00:03:07Z

‎Program

Robot at 00:02, 12 February 2020

2020-02-12T00:02:01Z

Robot at 22:58, 11 February 2020

2020-02-11T22:58:25Z

Robot: Created page with "== Let's begin == introduction... == Build == Model: 300px Pictures: Image:spike_average_speed.jpg|vehicle|300..."

2020-02-11T04:05:22Z

Created page with "== Let's begin == introduction... == Build == Model: model of vehicle|300px Pictures: Image:spike_average_speed.jpg|vehicle|300..."

New page

== Let's begin ==

introduction...

== Build ==

Model:

[[Image:spike_average_speed_model.png|model of vehicle|300px]]

Pictures:

[[Image:spike_average_speed.jpg|vehicle|300px]]

Building instructions:

* [[Spike Prime - Average Speed - Building Instructions|Average Speed (PNG)]]

Download building instructions:

* [[Media:spike_measure_average_speed.pdf| vehicle (pdf)]]

Download stud.io model:

* [[Media:spike_average_speed_vehicle.io|vehicle (stud.io)]]

== Program ==

[[Image:average_speed_prg.png|Main program]]

Download: [[Media:average_speed.llsp|average_speed.llsp]]

description of the program

== Measure, analyze, think ==

<youtube>a link to video</youtube>

* Make your own recording

Example result of measurement:

[[Image:spike_average_speed_variables.png|result of measurement]]

* Perform measurements with your model and discuss in your group what has happened.

== Explore and modify ==

* Modify the program so that ...
* Modify the model so that ...

== Present ==

* Prepare a short presentation for other groups. Tell others about how your measurement went, what issues did you have to solve. What do they mean and why did they happen?

== Additional resources ==

* Download: [http://robotika.sk/spike/spike_physics_2_average_speed.zip Average speed - all media files]

__notoc__

← Older revision		Revision as of 14:40, 28 February 2020
Line 1:		Line 1:
		+	<small>(''[[Spike up Prime Interest in Physics\|back to list of projects]]'')</small>
		+
	== Let's begin ==		== Let's begin ==

← Older revision		Revision as of 08:19, 12 February 2020
Line 26:		Line 26:
	* [[Media:spike_average_speed_vehicle.io\|vehicle (stud.io)]]		* [[Media:spike_average_speed_vehicle.io\|vehicle (stud.io)]]

−	Prepare your track - use a black tape to mark the locations of the cities A, B, and C with a black line on the floor perpendicular to the "train" movement.	+	Prepare your track - use a black tape to mark the locations of the cities A, B, and C with a black line on the floor perpendicular to the "train" movement. Use a measuring tape to make sure that the distance from A to B is the same as the distance from B to C. We have used 100 cm. If you use a different distance, consider changing the program to see the velocities in easy to understand units (cm/s).

@@ Line 36: / Line 36: @@
 Download: [[Media:average_speed.llsp|average_speed.llsp]]
-The robot starts moving with 30% of its maximum speed until it arrives to the mark of city A (the start). At that time, it resets the timer, and continues the same speed until the city B, where it speeds up to 60% of its maximum speed, stores the time A -> B into a variable t1 and resets the timer again. In the city C, it stops, stores the time of travel B -> C into variable t2.
+The robot starts moving with 30% of its maximum speed until it arrives to the mark of city A (the start). At that time, it resets the timer, and continues the same speed until the city B, where it speeds up to 70% of its maximum speed, stores the time A -> B into a variable t1 and resets the timer again. In the city C, it stops, stores the time of travel B -> C into variable t2.
 In the second part, it calculates the velocities v1, and v2, and shows on its display the average of the two values v1 and v2, and also the average speed calculated by dividing the total distance by total time.

@@ Line 1: / Line 1: @@
 == Let's begin ==
-introduction...
+Imagine your family is traveling with a train from city A to city C, but the train passes through city B on the way (without stopping).
 == Build ==
@@ Line 24: / Line 25: @@
 * [[Media:spike_average_speed_vehicle.io|vehicle (stud.io)]]
@@ Line 33: / Line 36: @@
 Download: [[Media:average_speed.llsp|average_speed.llsp]]
-description of the program
+The robot starts moving with 30% of its maximum speed until it arrives to the mark of city A (the start). At that time, it resets the timer, and continues the same speed until the city B, where it speeds up to 60% of its maximum speed, stores the time A -> B into a variable t1 and resets the timer again. In the city C, it stops, stores the time of travel B -> C into variable t2.
 == Measure, analyze, think ==
@@ Line 46: / Line 52: @@
 * Perform measurements with your model and discuss in your group what has happened.
 == Explore and modify ==
-* Modify the program so that ...
+* Modify the program to use different velocities and repeat the experiment.
-* Modify the model so that ...
+* Modify the program so that it will use the rotations sensor to measure the distance and thus it will be able to calculate the average speed even if the distances between the cities are not the same.
 == Present ==

@@ Line 28: / Line 28: @@
 == Program ==
-[[Image:average_speed_prg.png|Main program]]
+[[Image:average_speed_prg1.png|Program - driving]]
 Download: [[Media:average_speed.llsp|average_speed.llsp]]
 description of the program
 == Measure, analyze, think ==

@@ Line 11: / Line 11: @@
 Pictures:
-[[Image:spike_average_speed.jpg|vehicle|300px]]
+[[Image:spike_average_speed.jpg|vehicle|300px]] [[Image:spike_average_speed_cables.jpg|vehicle|300px]]
 Building instructions:

@@ Line 38: / Line 38: @@
 == Measure, analyze, think ==
-<youtube>a link to video</youtube>
+<youtube>R1chpuMY0KU</youtube>
 * Make your own recording