PhET/C2/Energy-forms-and-changes/English-timed - Revision history

Sandhya.np14 at 15:04, 12 August 2018

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Sandhya.np14 at 14:51, 12 August 2018

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Sandhya.np14 at 13:56, 12 August 2018

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Madhurig at 12:46, 9 August 2018

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Madhurig at 11:59, 9 August 2018

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Madhurig at 12:06, 8 August 2018

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PoojaMoolya: Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- ||00:01 || Welcome to this tutorial on '''Energy Forms and Changes simulation'''. |- ||00:07 || In this tutorial we will, Demo..."

2018-07-31T09:54:20Z

Created page with "{|border=1 ||'''Time''' ||'''Narration''' |- ||00:01 || Welcome to this tutorial on '''Energy Forms and Changes simulation'''. |- ||00:07 || In this tutorial we will, Demo..."

New page

{|border=1
||'''Time'''
||'''Narration'''

|-
||00:01
|| Welcome to this tutorial on '''Energy Forms and Changes simulation'''.

|-
||00:07
|| In this tutorial we will, Demonstrate '''Energy Forms and Changes''', '''PhET simulation'''.

|-
|| 00:15
|| Here I am using Ubuntu Linux OS version 14.04

|-
|| 00:23
|| Java version 1.7.0

|-
|| 00:27
|| Firefox Web Browser version 53.02.2

|-
|| 00:33
|| To follow this tutorial, Learner should be familiar with topics in high school physics.

|-
||00:41
|| Using this '''simulation''' we will learn, To conserve energy in real-life systems.

|-
|| 00:50
|| To compare thermal conductivity of different objects.

|-
|| 00:55
|| About different forms of energy.

|-
||00:58
|| Using this '''simulation''' we will, Predict how energy flows when objects are heated or cooled.

|-
|| 01:07
|| Design energy systems.

|-
|| 01:10
|| Study how energy changes from one form to another.

|-
|| 01:15
|| Energy is the capacity to do work on objects.

|-
|| 01:20
|| It is a '''scalar''' quantity.

|-
|| 01:23
|| In '''SI system''', it is measured in '''joules'''.

|-
|| 01:27
|| Energy exists in nature in several forms such as-

|-
|| 01:32
|| '''Mechanical energy '''

|-
|| 01:35
|| '''Electrical energy'''

|-
|| 01:38
|| '''Thermal energy'''

|-
|| 01:40
|| '''Light energy '''and

|-
|| 01:42
|| '''Chemical energy'''.

|-
|| 01:45
|| Use the given link to download the '''simulation'''.

|-
|| 01:50
|| I have already downloaded '''Energy Forms and Changes simulation''' to my '''Downloads''' folder.

|-
|| 01:57
|| To run the '''simulation''', open the '''terminal'''.

|-
|| 02:01
|| At the prompt type '''cd Downloads''' and press '''Enter'''.

|-
|| 02:08
|| Then type, '''java space hyphen jar space energy hyphen forms hyphen and hyphen changes underscore en dot jar''' and press '''Enter'''.

|-
|| 02:24
|| '''Energy Forms and Changes simulation''' opens.

|-
||02:28
|| The '''simulation''' screen has 2 tabs at the top- '''Intro''' and '''Energy Systems'''.

|-
|| 02:35
|| By default '''Intro''' screen opens.

|-
|| 02:39
|| '''Intro''' screen helps to predict, how thermal energy flows when objects are heated or cooled.

|-
||02:47
|| Left side of the screen has a set of three thermometers.

|-
||02:52
|| Right side of the screen has '''Energy Symbols''' check-box.

|-
|| 02:57
|| Click on '''Energy Symbols''' check-box.

|-
|| 03:01
|| Energy chunks will appear in '''Iron''' block, '''Brick''' block and '''Water''' container.

|-
|| 03:08
|| Number of chunks is proportional to amount of energy in each of the objects.

|-
|| 03:14
|| In this set up, the energy transfer is in the form of thermal energy.

|-
|| 03:19
|| There are two '''heat regulators''' to heat or cool the system.

|-
|| 03:24
|| '''Heat regulators''' are provided with stands.

|-
||03:28
|| At the bottom of the screen we have, '''Normal''' and '''Fast Forward''' radio-buttons to control the speed of animation.

|-
|| 03:37
|| '''Play''' / '''Pause''' button

'''Step''' button and

'''Reset All''' button.

|-
|| 03:42
|| Drag the '''Water '''container onto the stand.

|-
|| 03:46
|| Drag and attach the thermometer to the container.

|-
|| 03:50
|| Now drag and hold the slider of the '''heat regulator''' upwards to heat the Water.

|-
|| 03:57
|| As the temperature increases water evaporates and vapours are observed.

|-
|| 04:04
|| Also observe that energy chunks escape into the atmosphere.

|-
|| 04:09
|| Next drag and hold the slider of the '''heat regulator''' downwards to cool the Water.

|-
|| 04:16
|| As the temperature decreases water freezes and becomes ice.

|-
|| 04:22
|| Drag and place the container on the '''workbench'''.

|-
||04:26
|| Now drag the '''Iron''' block and place it on the first stand.

|-
|| 04:31
|| Drag and place the thermometer on the '''Iron''' block.

|-
|| 04:35
|| Move the '''Brick''' block and '''Water''' container to a side.

|-
|| 04:40
|| Before you start heating, note the number of energy chunks in the '''Iron''' block.

|-
|| 04:46
|| Observe the temperature on the thermometer.

|-
|| 04:50
|| Drag and hold the slider of the '''heat regulator''' upwards to heat the '''Iron''' block.

|-
|| 04:56
|| Observe that energy from heat is transferred to '''Iron''' block in the form of chunks.

|-
|| 05:03
|| Here internal energy of '''Iron''' block increases.

|-
|| 05:08
|| This is due to the flow of heat from the heat source to '''Iron''' block.

|-
||05:13
|| Observe that some chunks from '''Iron''' block escape into the atmosphere.

|-
|| 05:19
|| This results in decrease in the temperature of '''Iron''' block.

|-
|| 05:25
|| Again heat the '''Iron''' block to maximum temperature.

|-
|| 05:29
|| Drag and place the heated '''Iron''' block in the '''Water''' container.

|-
|| 05:34
|| Energy chunks travel from hot '''Iron''' block into Water.

|-
|| 05:39
|| This results in, decrease in the temperature of '''Iron''' Block.

|-
|| 05:44
|| Water becomes hot and its temperature increases.

|-
|| 05:49
|| This heat transfer process continues till objects reach '''thermal equilibrium'''.

|-
|| 05:55
|| Let us choose '''Fast Forward''' option to make the process faster.

|-
|| 06:03
|| Now again place the '''Iron''' block on the '''heat regulator'''.

|-
|| 06:08
|| Drag and hold the slider down to cool the '''Iron''' block.

|-
|| 06:13
|| Cool the '''Iron''' block until thermometer reaches its minimum temperature.

|-
||06:19
|| Again place the cooled '''Iron''' block in '''Water''' container.

|-
|| 06:23
|| Note the temperature changes and energy chunks transformation.

|-
||06:29
|| Now place both the blocks on to the stands.

|-
|| 06:33
|| Drag and place the thermometer on the '''Brick''' block.

|-
|| 06:37
|| Heat the blocks one by one until you will see maximum rise in temperatures.

|-
|| 06:44
|| Wait till '''thermal equilibrium''' is established. Observe the decrease in temperatures.

|-
||06:53
||Observe that '''Iron''' block has more number of energy chunks than '''Brick''' block.

|-
|| 06:59
|| This indicates that '''Iron''' has more thermal conductivity than '''Brick'''.

|-
|| 07:05
|| As an assignment, Heat '''Iron''' block and '''Brick''' block at the same time.

|-
|| 07:13
|| Place heated '''Iron''' block above the heated '''Brick''' block. And explain the observation.

|-
|| 07:20
|| Now we will move on to '''Energy Systems''' screen.

|-
|| 07:24
|| Click on '''Energy Systems''' tab.

|-
|| 07:27
|| '''Energy Systems''' screen opens.

|-
|| 07:31
|| This screen gives an idea about conservation of energy from everyday life.

|-
|| 07:38
|| Screen at the bottom has a set of- Energy sources

|-
|| 07:43
|| Electrical energy generation systems and Receivers.

|-
||07:50
|| '''Reset All''' button is available at the bottom right corner of the screen.

|-
|| 07:56
|| By default screen has a set up of- '''Faucet''' as energy source,

|-
|| 08:02
|| Turbine as Electrical energy generation system and '''Water''' container with thermometer as a receiver.

|-
|| 08:10
|| Click on '''Energy Symbols''' check-box.

|-
|| 08:14
|| '''Forms of Energy''' panel will display.

|-
|| 08:18
|| '''Forms of Energy''' panel helps you to identify the various forms of energy.

|-
|| 08:24
|| Now drag the blue slider to turn on the '''faucet'''.

|-
|| 08:28
|| Notice that water flowing from faucet has '''Mechanical''' energy.

|-
|| 08:34
|| This''' Mechanical''' energy turns the turbine which creates '''Electrical''' energy.

|-
|| 08:40
|| This energy causes the temperature of the water to increase.

|-
|| 08:45
|| As the temperature increases water evaporates and vapours are observed.

|-
|| 08:51
|| It gives off more '''Thermal''' energy into the atmosphere.

|-
|| 08:56
|| Here energy is conserved as total energy of the system remains constant.

|-
|| 09:02
|| Let's set up another energy system.

|-
|| 09:06
|| Here we will select Sun as a energy source.

|-
|| 09:11
|| Replace the turbine with solar panel.
|-
|| 09:14
|| Now instead of '''Water''' container, select '''incandescent''' bulb.

|-
|| 09:20
|| In this system, initially their is no '''cloud'''.

|-
|| 09:24
|| Here the sun is the source of '''Light''' energy.

|-
||09:28
||This '''light''' energy is absorbed by the solar panel to create '''Electrical''' energy.

|-
|| 09:34
|| This '''Electrical''' energy causes the bulb to glow.

|-
|| 09:38
|| The incandescent bulb converts '''Electrical''' energy into, a lot of '''Thermal''' energy and very little '''Light''' energy.

|-
|| 09:47
|| This is because the filament gets heated up.

|-
|| 09:51
|| Next replace the '''incandescent''' bulb with the '''fluorescent''' bulb.

|-
|| 09:56
|| Observe the energy output of '''fluorescent''' bulb.

|-
|| 10:00
||Notice that, The fluorescent bulb releases more '''Light''' energy and less '''Thermal''' energy.

|-
|| 10:07
|| Therefore '''fluorescent''' bulb is more efficient.

|-
|| 10:11
|| Now let's see the effect of '''Clouds''' on solar panel.

|-
|| 10:15
|| Drag the '''Clouds''' slider gradually from '''None''' to '''Lots'''.

|-
|| 10:20
|| As you drag the slider, '''clouds''' appear.

|-
||10:24
||Due to the presence of '''clouds''' light energy does not reach the solar panel.

|-
|| 10:30
|| So generation of '''Electrical''' energy stops.

|-
||10:34
|| As an assignment, Select '''cycle-generator system'''.

|-
|| 10:41
|| Explain why the cyclist must be fed in order to continue to pedal.

|-
|| 10:47
|| Set up different systems and let it run for a while.

|-
|| 10:52
|| Observe the energy transformations in each system and Tabulate your observations.

|-
|| 10:59
|| Let us summarize.

|-
|| 11:02
|| In this tutorial we have demonstrated, How to use '''Energy Forms and Changes''', '''PhET simulation'''.

|-
|| 11:11
|| Using this '''simulation''' we have learnt, To conserve energy in real-life systems.

|-
|| 11:19
|| To compare thermal conductivity of different objects.

|-
|| 11:24
|| About different forms of energy.

|-
|| 11:27
|| Using this '''simulation''' we have, Predicted how energy flows when objects are heated or cooled.

|-
|| 11:35
|| Designed energy systems.

|-
|| 11:38
|| Studied how energy changes from one form to another.

|-
|| 11:43
|| The video at the following link summarizes the Spoken Tutorial project.

Please download and watch it.

|-
|| 11:52
|| The '''Spoken Tutorial Project '''team: conducts workshops using spoken tutorials and

Gives certificates on passing online tests.

|-
|| 12:01
|| For more details, please write to us.

|-
|| 12:05
|| Please post your timed queries on this forum.

|-
|| 12:09
|| This project is partially funded by Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching.

|-
||12:17
|| Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.

More information on this mission is available at this link.

|-
|| 12:29
|| This is Meenal Ghoderao from IIT-Bombay. Thank you for joining.
|-

|}

@@ Line 193: / Line 193: @@
 |-
 || 04:09
-|| Next, drag and hold the slider of the heat regulator downwards to cool the water.
+|| Next, drag and hold the '''slider''' of the heat regulator downwards to cool the water.
 |-
 || 04:16
-|| As the temperature decreases water freezes and becomes ice.
+|| As the temperature decreases, water freezes and becomes ice.
 |-
@@ Line 205: / Line 205: @@
 |-
 ||04:26
-|| Now drag the '''Iron''' block and place it on the first stand.
+|| Now, drag the '''Iron''' block and place it on the first stand.
 |-
@@ Line 225: / Line 225: @@
 |-
 || 04:50
-|| Drag and hold the slider of the heat regulator upwards to heat the '''Iron''' block.
+|| Drag and hold the '''slider''' of the heat regulator upwards to heat the '''Iron''' block.
 |-
 || 04:56
-|| Observe that energy from heat is transferred to '''Iron''' block in the form of chunks.
+|| Observe that energy from heat is transferred to Iron block in the form of chunks.
 |-
 || 05:03
-|| Here internal energy of '''Iron''' block increases.
+|| Here, internal energy of Iron block increases.
 |-
 || 05:08
-|| This is due to the flow of heat from the heat source to '''Iron''' block.
+|| This is due to the flow of heat from the heat source to Iron block.
 |-
 ||05:13
-|| Observe that some chunks from '''Iron''' block escape into the atmosphere.
+|| Observe that some chunks from Iron block escape into the atmosphere.
 |-
 || 05:19
-|| This results in decrease in the temperature of '''Iron''' block.
+|| This results in decrease in the temperature of Iron block.
 |-
 || 05:25
-|| Again heat the '''Iron''' block to maximum temperature.
+|| Again heat the Iron block to maximum temperature.
 |-

@@ Line 9: / Line 9: @@
 |-
 ||00:07
-|| In this tutorial we will,
+|| In this tutorial, we will demonstrate '''Energy Forms and Changes''', '''PhET simulation'''.
-−
-Demonstrate '''Energy Forms and Changes''', '''PhET simulation'''.
 |-
 || 00:15
-|| Here I am using Ubuntu Linux OS version 14.04
+|| Here I am using: '''Ubuntu Linux OS''' version 14.04,
 |-
 || 00:23
-|| Java version 1.7.0
+|| '''Java''' version 1.7.0,
 |-
 || 00:27
-|| Firefox Web Browser version 53.02.2
+|| '''Firefox Web Browser''' version 53.02.2.
 |-
 || 00:33
-|| To follow this tutorial, learner should be familiar with topics in high school physics.
+|| To follow this tutorial, learner should be familiar with topics in high-school physics.
 |-
 ||00:41
-|| Using this '''simulation''' we will learn,
+|| Using this '''simulation''', we will learn:
 . To conserve energy in real-life systems.
@@ Line 45: / Line 43: @@
 |-
 ||00:58
-|| Using this '''simulation''' we will,
+|| Using this '''simulation''', we will:
 . Predict how energy flows when objects are heated or cooled.
 |-
 || 01:07
-|| 5. Design energy systems.
+|| 2. Design energy systems.
 |-
 || 01:10
-||6. Study how energy changes from one form to another.
+||3. Study how energy changes from one form to another.
 |-
@@ Line 75: / Line 73: @@
 |-
 || 01:32
-|| Mechanical energy
+|| mechanical energy,
 |-
 || 01:35
-|| Electrical energy
+|| electrical energy,
 |-
 || 01:38
-|| Thermal energy
+|| thermal energy,
 |-
@@ Line 91: / Line 89: @@
 |-
 || 01:42
-|| Chemical energy.
+|| chemical energy.
 |-
 || 01:45
-|| Use the given link to download the '''simulation'''.
+|| Use the given '''link''' to download the '''simulation'''.
 |-
@@ Line 103: / Line 101: @@
 |-
 || 01:57
-|| To run the '''simulation''', open the '''terminal'''.
+|| To '''run''' the '''simulation''', open the '''terminal'''.
 |-
 || 02:01
-|| At the prompt type '''cd Downloads''' and press '''Enter'''.
+|| At the '''prompt''', type: '''cd Downloads''' and press '''Enter'''.
 |-
 || 02:08
-|| Then type, '''java space hyphen jar space energy hyphen forms hyphen and hyphen changes underscore en dot jar''' and press '''Enter'''.
+|| Then type: '''java space hyphen jar space energy hyphen forms hyphen and hyphen changes underscore en dot jar''' and press '''Enter'''.
 |-
@@ Line 123: / Line 121: @@
 |-
 || 02:35
-|| By default '''Intro''' screen opens.
+|| By default, '''Intro''' screen opens.
 |-
 || 02:39
-|| '''Intro''' screen helps to predict, how thermal energy flows when objects are heated or cooled.
+|| '''Intro''' screen helps to predict how thermal energy flows when objects are heated or cooled.
 |-
 ||02:47
-|| Left side of the screen has a set of three thermometers.
+|| Left side of the '''screen''' has a set of three thermometers.
 |-
@@ Line 155: / Line 153: @@
 |-
 || 03:19
-|| There are two heat regulators to heat or cool the system.
+|| There are two heat '''regulator'''s to heat or cool the system.
 |-
@@ Line 163: / Line 161: @@
 |-
 ||03:28
-|| At the bottom of the screen we have, '''Normal''' and '''Fast Forward''' radio-buttons to control the speed of animation.
+|| At the bottom of the screen, we have '''Normal''' and '''Fast Forward''' radio-buttons to control the speed of '''animation''',
 |-
 || 03:37
-|| '''Play''' / '''Pause''' button
+|| '''Play''' / '''Pause''' button,
 '''Step''' button and
@@ Line 183: / Line 181: @@
 |-
 || 03:50
-|| Now drag and hold the slider of the heat regulator upwards to heat the water.
+|| Now drag and hold the '''slider''' of the heat regulator upwards to heat the water.
 |-
 || 03:57
-|| As the temperature increases water evaporates and vapours are observed.
+|| As the temperature increases, water evaporates and vapors are observed.
 |-
 || 04:04
-|| Also observe that energy chunks escape into the atmosphere.
+|| Also, observe that energy chunks escape into the atmosphere.
 |-
 || 04:09
-|| Next drag and hold the slider of the heat regulator downwards to cool the water.
+|| Next, drag and hold the slider of the heat regulator downwards to cool the water.
 |-

@@ Line 259: / Line 259: @@
 |-
 || 05:34
-|| Energy chunks travel from hot '''Iron''' block into Water.
+|| Energy chunks travel from hot '''Iron''' block into water.
 |-
@@ Line 279: / Line 279: @@
 |-
 || 06:03
-|| Now again place the '''Iron''' block on the '''heat regulator'''.
+|| Now again place the '''Iron''' block on the heat regulator.
 |-
@@ Line 486: / Line 486: @@
 || As an assignment,
-Select cycle-generator system.
+Select '''cycle-generator system'''.
 |-
@@ Line 498: / Line 498: @@
 |-
 || 10:52
-|| Observe the energy transformations in each system and  tabulate your observations.
+|| Observe the energy transformations in each system and tabulate your observations.
 |-

@@ Line 323: / Line 323: @@
 |-
 || 07:05
-|| As an assignment, Heat '''Iron''' block and '''Brick''' block at the same time.
+|| As an assignment,
 |-
@@ Line 359: / Line 361: @@
 |-
 || 07:56
-|| By default screen has a set up of- '''Faucet''' as energy source,
+|| By default screen has a set up of- Faucet as energy source,
 |-
@@ Line 383: / Line 385: @@
 |-
 || 08:28
-|| Notice that water flowing from faucet has Mechanical energy.
+|| Notice that water flowing from faucet has mechanical energy.
 |-
 || 08:34
-|| This Mechanical energy turns the turbine which creates Electrical energy.
+|| This mechanical energy turns the turbine which creates Electrical energy.
 |-
@@ Line 399: / Line 401: @@
 |-
 || 08:51
-|| It gives off more Thermal energy into the atmosphere.
+|| It gives off more thermal energy into the atmosphere.
 |-
@@ Line 422: / Line 424: @@
 |-
 || 09:20
-|| In this system, initially their is no '''cloud'''.
+|| In this system, initially their is no cloud.
 |-
@@ Line 430: / Line 432: @@
 |-
 ||09:28
-||This light energy is absorbed by the solar panel to create Electrical energy.
+||This light energy is absorbed by the solar panel to create electrical energy.
 |-
 || 09:34
-|| This Electrical energy causes the bulb to glow.
+|| This electrical energy causes the bulb to glow.
 |-
@@ Line 478: / Line 480: @@
 |-
 || 10:30
-|| So generation of Electrical energy stops.
+|| So generation of electrical energy stops.
 |-
@@ Line 485: / Line 487: @@
 Select cycle-generator system.
 |-
@@ Line 512: / Line 513: @@
 . To conserve energy in real-life systems.
 |-
 || 11:19
@@ Line 570: / Line 569: @@
 || This is Meenal Ghoderao from IIT-Bombay. Thank you for joining.
 |-
 |}