Posts Tagged ‘boiling water’
Evaluate the experiment below, identifying energy loss and errors, and access their effect on the efficiency?
The experiment was ‘Determining the efficiency of energy conversion of boiling water in an electric kettle‘.
The method/system -
1. Weigh accurately 1000g of water and pour into the kettle provided.
2. Switch on to boil and start the timer. Time how long it takes for the water to boil and record your result.
I calculated the amount of energy used to make the water boil to be -334.4 KJ.
I calculated the ‘efficiency’ of energy inter-conversion of the system to be 77.4%.
Evaluate the experiment above, identifying energy loss and errors, and access their effect on the efficiency?
THANK YOU!
Additional Reference Information
Evaluate the experiment below, identifying energy loss and errors, and access their effect on the efficiency?
The experiment was ‘Determining the efficiency of energy conversion of boiling water in an electric kettle‘.
The method/system -
1. Weigh accurately 1000g of water and pour into the kettle provided.
2. Switch on to boil and start the timer. Time how long it takes for the water to boil and record your result.
I calculated the amount of energy used to make the water boil to be -334.4 KJ.
I calculated the ‘efficiency’ of energy inter-conversion of the system to be 77.4%.
Evaluate the experiment above, identifying energy loss and errors, and access their effect on the efficiency?
THANK YOU!
Additional Reference Information
Evaluate the experiment below, identifying energy loss and errors, and access their effect on the efficiency?
The experiment was ‘Determining the efficiency of energy conversion of boiling water in an electric kettle‘.
The method/system -
1. Weigh accurately 1000g of water and pour into the kettle provided.
2. Switch on to boil and start the timer. Time how long it takes for the water to boil and record your result.
I calculated the amount of energy used to make the water boil to be -334.4 KJ.
I calculated the ‘efficiency’ of energy inter-conversion of the system to be 77.4%.
Evaluate the experiment above, identifying energy loss and errors, and access their effect on the efficiency?
THANK YOU!
Additional Reference Information
Parents do you have 5 mins to help me with formula? :)?
If you have time, could you help me with questions i have for college? Will take a few mins. Its for a product i’m making…. thanx 
Copy and past into your answer and delet the answers that don’t aply, thanks a million
How old is your Child?
0-3 months
3 months –older
Or are you talking from experience
What do you/did you use to feed your child?
Breastfeeding
Formula
Both
If you use formula, what brand/brands do you use?
. .
Does/did your baby suffer from colic or any other digestive problems?
Yes
No
How often does/did your child need to be bottle fed? Every…
2 hours
3-4
4 or more
On demand
What stage have you or will you introduce solids?
3-4 months
4-6 months
6 or more months
Where do you wash the bottles before you sterilize them?
Dishwasher
Sink
Separate basin
Don’t wash before sterilizing
How do you sterilize your bottles?
Microwave unit
Sterilizing liquid
Electric steriliser
In a pot on the hob
Don’t sterilize
How do you store sterilized bottles?
On open work surface
In fridge
In sealed container
In cupboard
What water do you use with your formula?
Tap water
Bottled water
Specialized water i.e. Nursery water
Do you boil the water for mixing in the formula?
Yes
No
If so, what do you boil the water in?
Kettle
Microwave
Saucepan
Do you ever reboil previously boiled water for use in formula?
Yes
No
Do you let the water cool….
In the kettle before adding to the bottle
In the bottle after pouring it in
When do you add the formula to the bottle?
The formula is put into the bottle before the water
Out the formula straight into boiling water
Into warm water
Into water at room temperature
Or do you measure the temperature of the water
According to instructions on formula package
Do you tap or level of the spoon/scoop of formula?
Tap
Level
both
Have you ever forgotten the amount of scoops of formula you’ve out into the bottle?
Yes
No
If the formula is too hot how do you cool it?
Fridge
Freezer
Jug of cold water
Leave to stand
How do you mix the formula?
Shake
Stir
Use blender
Where is your baby during this process?
Being held by you
In seat or cot
Other . .
Do you pre-prepare bottle for the day and night?
Yes
No
How do you store made up bottles until use?
In the fridge
At room temperature
How do you heat bottles for feeding?
In microwave
In jug of hot water
Leave at room temperature
How do you test the temperature of the bottle before the feed?
On wrist or hand
With thermometer
Don’t
Roughly how long does the overall process take from sterilizing to feeding?
5 mins
5-10 mins
10-20 mins
20-30 mins
More than 30 mins
If an electrical unit existed which did all of the above, do you think it would benefit parents or carers of young children?
Yes
No
Do you think there is a market for this kind of product?
Yes
No
Thank you so much for you time, Happy feeding!
Additional Reference Information
Any parents have a minutes to tell me about formula? please :)?
If you have time, could you please help me with questions i have for college? Will take a few mins. Its for a product i’m making…. thanx Copy and past into your answer and delet the answers that don’t aply, thanks a million
How old is your Child?
0-3 months
3 months –older
Or are you talking from experience
What do you/did you use to feed your child?
Breastfeeding
Formula
Both
If you use formula, what brand/brands do you use?
. .
Does/did your baby suffer from colic or any other digestive problems?
Yes
No
How often does/did your child need to be bottle fed? Every…
2 hours
3-4
4 or more
On demand
What stage have you or will you introduce solids?
3-4 months
4-6 months
6 or more months
Where do you wash the bottles before you sterilize them?
Dishwasher
Sink
Separate basin
Don’t wash before sterilizing
How do you sterilize your bottles?
Microwave unit
Sterilizing liquid
Electric steriliser
In a pot on the hob
Don’t sterilize
How do you store sterilized bottles?
On open work surface
In fridge
In sealed container
In cupboard
What water do you use with your formula?
Tap water
Bottled water
Specialized water i.e. Nursery water
Do you boil the water for mixing in the formula?
Yes
No
If so, what do you boil the water in?
Kettle
Microwave
Saucepan
Do you ever reboil previously boiled water for use in formula?
Yes
No
Do you let the water cool….
In the kettle before adding to the bottle
In the bottle after pouring it in
When do you add the formula to the bottle?
The formula is put into the bottle before the water
Out the formula straight into boiling water
Into warm water
Into water at room temperature
Or do you measure the temperature of the water
According to instructions on formula package
Do you tap or level of the spoon/scoop of formula?
Tap
Level
both
Have you ever forgotten the amount of scoops of formula you’ve out into the bottle?
Yes
No
If the formula is too hot how do you cool it?
Fridge
Freezer
Jug of cold water
Leave to stand
How do you mix the formula?
Shake
Stir
Use blender
Where is your baby during this process?
Being held by you
In seat or cot
Other . .
Do you pre-prepare bottle for the day and night?
Yes
No
How do you store made up bottles until use?
In the fridge
At room temperature
How do you heat bottles for feeding?
In microwave
In jug of hot water
Leave at room temperature
How do you test the temperature of the bottle before the feed?
On wrist or hand
With thermometer
Don’t
Roughly how long does the overall process take from sterilizing to feeding?
5 mins
5-10 mins
10-20 mins
20-30 mins
More than 30 mins
If an electrical unit existed which did all of the above, do you think it would benefit parents or carers of young children?
Yes
No
Do you think there is a market for this kind of product?
Yes
No
Thank you so much for you time, Happy feeding!