Question

All of the following is an example of random error except

Group of answer choices

Poor thermal contact between thermometer and object being measured.

Vibrations in air current when measuring mass

Inconsistent environmental temparature

Irregularities in the object being measured

When all measurements of a quantity are consistently bigger or consistently smaller than the true value, these best indicates ________________________

Group of answer choices

Systematic error in measurements

Normal variation

All of the above

Random error in measurements

A t score value of zero implies

Group of answer choices

The measured and actual value are the same (a perfect result)

The discrepancy is one standard deviation

The measured value is largely deviated from the actual value and unacceptable

No correlation between measured value and actual value

For a picket fence in free-fall, the measured time between every displacement (△ x) will __________. (Hint: Velocity gradually increases from initial velocity value)

Group of answer choices

Remain constant

Decrease

Increase

Oscillate

Michael Jordan is riding the Giant Drop at Great America. If Michael Jordan falls for 2600 milliseconds, what will be his final velocity and how far will he fall?

Type in your correct answers and have the correct units by them for full points

Use g = 9.8 m s − 2

Answer 1

1. All of the following is an example of random error except:

Poor thermal contact between thermometer and object being measured.

Contact between thermometer and object being measured is not a random event. Not any fluctuation caused by nature is involved in it. It can be fixed easily with some mechanical tools, where others are caused by nature and cant be removed from the system.

2. When all measurements of a quantity are consistently bigger or consistently smaller than the true value, these best indicates ________________________:

Systematic error in measurements.

Normal variation would not having consistantly higher or lower valus. It follows a normal distribution and values will be distributed like the distribution. But systematic errors can caused error of same margin everytime.

3.

Random error in measurements At score value of zero implies:

The measured and actual value are the same (a perfect result)

Zero random error means there is no error in measurement.

4. For a free fall of picket fence, the velocity will be increases linearly with time v= g*t.

Now, as velocity increases, it will pass through the displacement faster.

5. Micheal Jordan in free fall. t = 2600 mili sec= 2.6 sec.

Initial velocity = 0

Final velocity will be v= g*t where g=-9.8 m/sec2

v= 9.8*2.6 m/sec = 25.48 m/sec

Travelled Distance=

Putting all values travelled distance = 33.124 m.