IB Biology Skills: Accuracy

IB Biology Skills: Accuracy

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial covers the concept of accuracy in IB Biology, using analogies like Robin Hood's archery to explain how experimental results should be close to true values. It discusses systematic errors, their causes, and how they affect accuracy. Methods to improve accuracy, such as calibration and correct instrument use, are detailed. The impact of environmental factors and instrument resolution on accuracy is also explored. A sample exam question is analyzed to illustrate how accuracy is assessed in practical investigations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does accuracy in scientific experiments refer to?

The precision of the measurements

The variety of instruments used

The closeness of results to the true value

The number of times an experiment is repeated

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a systematic error?

An error that occurs randomly

An error that is consistently in the same direction

An error that is unpredictable

An error that is due to human mistakes

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can systematic errors be reduced?

By repeating the experiment multiple times

By using more advanced instruments

By calibrating instruments and using them correctly

By increasing the sample size

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is calibration important in experiments?

It increases the speed of the experiment

It reduces the cost of the experiment

It helps in obtaining accurate measurements

It ensures the instruments are new

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of environmental factors on experimental accuracy?

They improve the accuracy

They only affect the reliability

They can cause systematic errors

They have no effect

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can temperature changes affect enzyme experiments?

They have no effect on enzymes

They can alter the enzyme's activity

They make the enzyme more stable

They only affect the pH level

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the resolution of an instrument refer to?

The cost of the instrument

The speed at which it measures

The ability to distinguish between similar values

The size of the instrument

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