Understanding Random Errors in Experiments

Understanding Random Errors in Experiments

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains random error using a pendulum experiment. It discusses how random error differs from systematic error, highlighting its unpredictable nature and variability. The tutorial provides methods to reduce random error, such as taking repeated readings and averaging them. It concludes by identifying sources of random error, including human limitations and instrument sensitivity.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the time taken for a pendulum to make 10 complete oscillations in the given example?

19.8 seconds

20.2 seconds

20.0 seconds

20.1 seconds

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the pendulum experiment, what is the error for the first experiment?

0.1 seconds

0.3 seconds

0.2 seconds

0.0 seconds

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a systematic error differ from a random error?

Both errors are unpredictable

Both errors are consistent

Systematic error is consistent, random error is unpredictable

Systematic error is unpredictable, random error is consistent

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key characteristic of random errors?

They can be either positive or negative

They are always negative

They are always zero

They are always positive

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one method to reduce random error?

Take repeated readings and average them

Use a more sensitive instrument

Calibrate the instrument

Ignore the error

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't random errors be completely avoided?

They are intentional

They arise from unknown and unpredictable variations

They are due to faulty equipment

They are caused by human error

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of averaging multiple readings in the context of random errors?

It eliminates the error completely

It reduces the error

It has no effect on the error

It increases the error

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