IB Chemistry: Accuracy
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Arts, Other, Chemistry, Science, Information Technology (IT), Architecture, Physics
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4th Grade - University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does accuracy in scientific experiments refer to?
How close the experimental results are to the true value
The number of times an experiment is repeated
The speed at which an experiment is conducted
The variety of instruments used in an experiment
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a systematic error?
Using a new thermometer for each trial
Recording data at different times of the day
A scale that reads 2 kg when empty
Random fluctuations in temperature readings
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to read the meniscus at eye level?
To prevent the solution from spilling
To avoid parallax error
To make the experiment faster
To ensure the solution is mixed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can systematic errors be minimized?
By using more expensive equipment
By conducting experiments outdoors
By calibrating instruments and using them correctly
By increasing the sample size
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of using a measuring instrument with low resolution?
It provides more precise measurements
It increases the accuracy of the results
It makes it difficult to distinguish between similar values
It reduces the need for calibration
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be done if a thermometer is inserted upside down in a solution?
Leave it as it is and record the reading
Remove it and insert it correctly
Use a different thermometer
Ignore the error and continue
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is calibration in the context of scientific experiments?
A way to enhance the visual appeal of instruments
A technique to reduce the number of trials
A method to increase the speed of data collection
A process to adjust instruments to known standards
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