• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3

# Physics Investigation: How does insulation effect the loss of heat

Extracts from this document...

Introduction

Physics Investigation: How does insulation effect the loss of heat? In this investigation I am going to try and find out what difference it makes if you wrap newspaper round a beaker with hot water in it and see if the heat loss is different with different thickness layers of newspaper. I carried out a preliminary experiment and found out that by only increasing the layers of thickness by 1 layer each time, that wont make enough difference to make a good graph because the trends will be too similar. So I chose to increase the layers by five sheets each time. Apparatus: * Beaker * Stopwatch * Newspaper * Polystyrene * Thermometer * Kettle * Stand and clamp I will also take a number of safety precautions whilst conducting the investigation. I will ensure the kettle is used safely through out the experiment, and hot water is transferred securely. . I will use protection when handling the boiling tubes when the hot water is present. ...read more.

Middle

I will change the layers of newspapers on the beaker. I will get 6 beakers. I will record two at a time. I will put polystyrene on the top and bottom of the beakers when I have filled the beakers up with 150 ml of boiling water. There is a little hole in the polystyrene on the top of the beaker to stick the thermometer through. I will then take results every five minutes for a total of 30 minutes. There will be 6 readings taken for each newspaper layer range. I will record 6 different layers. 0 layers, 5 layers, 10 layers, 15 layers, 20 layers and 25 layers. This should give me a good range of results. I predict that the more layers of newspaper round the beaker, the less quickly the water will lose heat. I say these because the more layers there are the more air pockets there are to keep the heat in. If there are more air pockets the more hot air is trapped in the newspaper. ...read more.

Conclusion

60 61 62 64 63 64 18 59 61 61 63 63 63 19 59 60 60 62 62 62 20 58 59 59 61 62 62 21 57 59 58 60 61 62 22 56 58 57 60 60 61 23 55 57 57 59 59 60 24 55 56 56 58 58 59 25 54 55 55 57 58 58 Analysing evidence and conclusion: My results went down in a good trend. All apart from the 25 layers which cooled quicker than the 20 layers. All the results are clear that they gradually decrease in the graph, In a fairly straight line. The more they are insulated, the slower the temperature falls. It is because the newspaper traps air in between it and the beaker, this insulates the beaker and traps hot air from escaping. Evaluation: My results were good. I conclude that the more layers around the beaker, the slower the temperature falls. I could have measured the results more accurately, by taking more time and recording each result twice but I didn't have time. By William malbon. Physics coursework.doc - 2 - 20/03/02 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Green Plants as Organisms section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related GCSE Green Plants as Organisms essays

1. ## Investigate the effect of huddling on heat loss.

5 star(s)

Repeat this experiment to obtain a more accurate overall result. We repeated this experiment 4 times. In consideration of time restraints, there can be 2 of these experiments conducted simultaneously if there are 2 people involved. 5. The circumference and length of the test tube was measured, so that

2. ## An investigation into the effect of a germination inhibitor on the germination of seeds.

3 star(s)

must now be matched against a probability table. This is a theoretical table of values which gives the probability (as a portion of 1) and a value of "degrees of freedom" (DOF). The degrees of freedom involved here is 5 (because there are 6 groups and the DOF is always minus 1 of the amount of groups).

1. ## An Investigation into Water Loss from Plants.

air causing water to leave through the tonoplast and cell membrane by osmosis. All these routes will bring water from the cells to the air spaces in the leaf and only if there is a concentration gradient between the water vapour in the leaf and water vapour in the air, water will leave by transpiration.

2. ## An Investigation into Species Diversity with distance along a Pingo.

test 67.286 16.900 Null hypothesis rejected, there was a significant difference in the distribution of Buttercup along the pingo ladies bedstraw distribution chi-squared 90.757 16.900 Null hypothesis rejected, there was a significant difference in the distribution of Ladies Bedstraw along the pingo white leaf clover distribution chi-squared 50.242 16.900 Null

1. ## Investigating factors which affect heat loss from a beaker of hot water.

This is because dull objects radiate more energy than shiny. I think heat loss will be most effective when no foil is wrapped around the large beaker and when there is no insulation between it because then conduction and convection take their role therefore losing the most heat.

2. ## Bouncing balls: Physics coursework

This means when it hits the ground there is more energy which can be converted into propelling the ball back into the air. I will drop the ball when the temperature of the water is 20�C, 30�C, 40�C, 50�C, 60�C, 70�C, 80�C, 90�C, and 100�C, This will also help me

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to