Errors and Uncertainties

Errors and Uncertainties

12th Grade - University

6 Qs

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Errors and Uncertainties

Errors and Uncertainties

Assessment

Quiz

Physics

12th Grade - University

Practice Problem

Hard

Created by

Arunthathi Ajith

Used 21+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student measures a line to be 3.8 cm ± 0.1 cm. The absolute uncertainty in the measurement is

±0.1 mm

±0.1 cm

±0.01 cm

±0.01 mm

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

A student measures a line to be 3.8 cm ± 0.1 cm.The fractional uncertainty in the measurement

±0.3

±0.026

±0.03

3.

MULTIPLE CHOICE QUESTION

30 sec • Ungraded

A student measures a line to be 3.8 cm ± 0.1 cm. The percentage uncertainty in the measurement is

±3%

±2.6%

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A flagpole is placed on the roof of a house. A student measures the flagpole to be 4.25 m ± 0.05 m. The same student measures the height from the ground to the base of the flagpole to be 6.40 m ± 0.15 m. If the flagpole is mounted vertically upward (straight up), how far is the tip of the flagpole above the ground. Be sure to use significant figures and include a raw uncertainty with your answer.

10.7 m ± 0.15 m

10.7 m ± 0.02 m

10.7 m ± 0.2 m

10.7 m ± 0.05 m

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

A car travels 250 m ± 15 m in 12.2 s ± 0.2 s. Calculate its speed. Be sure to use significant figures and include a raw uncertainty with your answer.

21 ms-1 ± 1.565 ms-1

21 ms-1 ± 1.5 ms-1

21 ms-1 ± 1.57 ms-1

21 ms-1 ± 2 ms-1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

There is an average of one fish per 5 m3 in a lake that is approximately 5 metres deep. If a lake is approximately 58 m × 32 m in a rectangular shape, estimate the number of fish in this lake.

1800

371

9280

1856

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