中譯英　＊２０分＊急

We anticipate the last 2 sets of data (ie. apparent loss in weight and the actual displacement) taken from the first experiment to be in close proximity. In the second experiment, the weight of the wood and that of the water it displaced are supposed to be more or less the same. However, there exists marked difference between the recorded data and our anticipation.
We attribute such deviation to the errors in 2 aspects:
A. improper handling
1. too much force has been applied in placing the object into the water so that certain amount of water splashed out in the process; and
2. wrongly use of spring balance to weigh the floating wood as the spring of the balance might have exerted on the wood a lifting force which would set off some of the weight of the wood and lessened the volume of water displaced.
B. defective apparatus
defectiveness of apparatus might affect the accuracy of the readings taken.
Suggested improvements:
To exercise greater caution when placing the object into the water ; and
To use tools of higher precisio.


2007-10-22 09:53:23 補充：
for the last sentence it should be amended as follows:To use tools of higher precision.

In our anticipated first experiment finally two values - tables view weightlessness and discharges the water weight can be quite approaches, but in the second experiment, the log weight and discharges the water weight similarly should be quite approaches. However, the experiment finally obtains the value and anticipated has the obvious difference.

We believed the experimental error brings about by the following two factors:

The human error
1 puts in the thing in the water when too vigorously, is splashed the water;
2 wrong floated with the spring balance measurement log in the aquatic time weight - spring balance spring has exerted an upward strength to the log, offset the log partial weights, the water which the command discharged have been few.

The instrument question spring balance accuracy too is low, the value which measures has the very big error.

Improvement method:

Slowly put the thing in the water;
Use accuracy higher instrument.

Last two pieces of number value in the first experiment of our expectancy - The apparent weightlessness and weight of water discharged will be quite closing to, and in the second experiment, the weight of the billet is quite closing to as weight of water of discharge. However, there are obvious differences between number value and expectancy that the experiment must happen finally.

Last two pieces of number value in the first experiment of our expectancy - The apparent weightlessness and weight of water discharged will be quite closing to, and in the second experiment, the weight of the billet is quite closing to as weight of water of discharge. However, there are obvious differences between number value and expectancy that the experiment must happen finally.

We believe experimental error is caused by the following two factors:

Human error
A handful of things are too energetical when put into water, make water spatter out;
2 misuse hanging spring-balance measure billet float weight on water - spring of hanging spring-balance exert a upward strength to the billet, compensate billet some weight, ink discharged to make little.

Question of the instrument
The accuracy of the hanging spring-balance is too low, the number value that is measured out has very great errors.

Improve the method :

Put the things into water slowly;
Use the instrument of higher accuracy.

We expect the first experiments in the last two values - from the apparent weight loss and the weight of the water is very close, and the second experiment, pieces of wood and the weight of the water from the weight of the same should be very close. However, the final outcome of this experimental and numerical expected significant difference.

We believe that the experimental error caused by the following two factors:

Human error
One thing Add the water too vigorously, the water dripping;
2 wrongly used to measure pieces of wood floating in the spring balance the weight of the water - spring balance spring to block the imposition of a progressive, which more than offset a part of the weight of wood, so that emit less water.

Equipment problems
Spring balance accuracy is too low, measuring out a large numerical error.

Improved Methods:

Add water slowly objects;
The use of higher accuracy of the apparatus.