• 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
4. 4
4
5. 5
5
6. 6
6
7. 7
7
8. 8
8
9. 9
9
10. 10
10
11. 11
11
12. 12
12
13. 13
13
14. 14
14

# A company, interested in the design of cups used for hot drinks, decides to manufacture a new cup, designed to keep the hot drink as hot as possible.

Extracts from this document...

Introduction

Investigation:

The Design Of A

## Brief

A company, interested in the design of cups used for hot drinks, decides to manufacture a new cup, designed to keep the hot drink as hot as possible.

Before making the new cup, they need to know the answers to the following questions:

• In what ways can a cup of hot drink loose energy?
• Which of these methods causes the drink to cool down quickest?
• What is the best design to prevent heat loss?

### Investigation

In our investigation we are going to investigate into the following

forms of heat loss:

• Convection
• Conduction
• Evaporation

Investigation:

The Design Of A

## Coffee Cup

Aim

Our aim in this experiment is to find ways to prevent heat energy escaping from a cup through radiation. We will investigate into and find ways of preventing radiation.

Research

Radiation is the flow of atomic and subatomic particles and waves, such as those that characterise heat rays and x-rays. All matter is constantly bombarded with radiation of both forms from cosmic and terrestrial sources. Radiation is released when unstable nuclei decay. There are three main types of radiation Alpha Beta and Gamma. Alpha and Gamma radiation can be stopped by aluminium foil.

Apparatus

In the experiment we will need:

• Aluminium Foil
• Kettle
• Water
• Thermometer
• Stop clock
• Beaker
• Copper calorimeter

Investigation:

The Design Of A

## Coffee Cup

#### Hypothesis

I predict that the aluminium foil will have a positive affect on the temperature of the hot water inside, keeping it warm.

Middle

Graph to show the temperatures of the two cups during the experiment

Key =            ________  -  Aluminium Calorimeter

________  -  Control Calorimeter

Investigation:

The Design Of A

Coffee Cup

Evaporation

Aim

Our aim in this experiment is to find ways to prevent heat energy escaping from a cup through evaporation. We will investigate into and find ways of preventing evaporation.

Research

Evaporation is the process by which the liquid rises into the air thereby loosing heat energy. A way of stopping evaporation is to place a polystyrene piece on top of the calorimeter, this will stop heat escaping.

Apparatus

We are going to use the following pieces of apparatus:

• Polystyrene piece
• Kettle
• Stop Clock
• Thermometer
• Copper Calorimeter
• Water
• Beaker

Hypothesis

I predict that the polystyrene piece will have a large affect on the temperature of the water. I think that it will keep the liquid hotter for longer when compared with the control cup. This is due to the fact that the polystyrene piece will not allow any heat energy to escape from the drink keeping it cooler.

Investigation:

The Design Of A

## Coffee Cup

Method

• Boil water in kettle, and pour into both calorimeters
• Start stop clock
• Place piece of polystyrene on top of one cup
• Measure begging temperature
• Measure temperature every minute for the next 9 minutes
• Measure finishing temperature after this

Results table

Start Temp

1min temp

2min temp

3min temp

4min temp

5min temp

6min temp

7min temp

8min temp

Finish temp

87

86 c°

85 c°

83 c°

80 c°

77 c°

73 c°

70 c°

68 c°

66

87

86 c°

84 c°

80 c°

76 c°

71 c°

66 c°

62 c°

58 c°

55 c°

Investigation:

Conclusion

Investigation:

The Design Of A

## Coffee Cup

Final Cup Design

The final cup design involves using the data from the previous experiments and coming up with the best design. This cup would also involve mixing designs from the previous experiments and mixing then all into one design that would keep heat as high and constant as possible fro as long as possible.

1- The cup would involve using something to cover it to prevent evaporation which is, as we have proved, a factor of heat loss in a hot drink. We will use the polystyrene covers as we used in the previous experiment as this was proved to prevent heat energy being lost and kept the drink hotter for longer.

2- Another design feature of the cup would be insulation to prevent the cup from loosing heat energy from conduction, which we have proved in previous experiment is a factor of heat loss in a hot drink. We will use as insulation in the form of wool surrounded by a tin.

3-The last feature of design we will use is to prevent radiation into the cup. It is designed to prevent the hot drink loosing energy through radiation. We are going to use a covering of aluminium foil to stop the radiation. It will be wrapped around the tin can.

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism 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 Electricity and Magnetism essays

1. ## Thermal insulators.

4 star(s)

The graph has a negative correlation which explains, as time goes on the temperature of the water decrease. The papers final result is 68 and plastics is 67, however they both have same line of best fit, which implies to me that their results are very similar.

2. ## Investigating the Heat Loss of Water From a Beaker

carry the charge and their atoms are quite spread and so the energy cannot be passed on so efficiently and a lot of the energy is lost. The diagram below shows the process by which energy is passed on by vibrations in a substance.

1. ## Conductors and Insulators.

across a = Current through x A Conductor Conductor Constant & V = I X R The constant R is the resistane of the conductor and the equation is knowen a OHMS law. We can also say that the P.D.

2. ## Heat loss

They then move in a vertical motion rising above the surface. As they are moving further and further away from the heat, they become cool again and so the atoms become further away like before. This makes them sink. Having a lid means that the warm air won't rise and escape into the atmosphere.

1. ## Investigating The Heat Of Combustion Of Alcohols.

I must consider these factors in my conclusion. Apparatus: Retort stand Clamp Boss Methanol Ethanol Propanol Pentanol Spirit burner Copper calorimeter Water Thermometer Draught shield Measuring cylinder Splinter Electronic scales Diagram: Variables: Alcohol used Volume of water being heated

2. ## My aim is to investigate the rate of energy loss in different types of ...

Also, because I will be using polystyrene cups in my experiment, this will make the container (cup) more insulated. We have also done an experiment using Leslie's Cube (a cube which has 6 different variations of surfaces, for example: dull, dull and bright, dull and dark etc.)

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