Week 1-2 - Basic Capabilities

Beschreibung

This quiz will asses your understanding of error, vectors and scalars, and basic mathematical operations
Ryan Elwell
Quiz von Ryan Elwell, aktualisiert more than 1 year ago
Ryan Elwell
Erstellt von Ryan Elwell vor mehr als 5 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Which of the following are examples of systematic errors I. Weighing an object on an electronic balance. II. Consistently reading meter stick values from an angle. III. Using an incorrectly calibrated probe in an experiment.
Antworten
  • I and III
  • I, II and III
  • II and III
  • I and II
  • I
  • II
  • III

Frage 2

Frage
Which statements about uncertainties are true? I. Every measurement has an uncertainty. II. Uncertainties are expressions of random error. III. Uncertainties are always expressed as positive values.
Antworten
  • I and II
  • I and III
  • II and III
  • I, II and III
  • I
  • II
  • III

Frage 3

Frage
What is the uncertainty in a measurement taken on an electronic balance that reads mass (in grams) to two decimal places?
Antworten
  • +/- 0.5 g
  • +/- 0.05 g
  • +/- 0.005 g
  • +/- 0.1 g
  • +/- 0.01 g
  • +/- 0.001 g

Frage 4

Frage
If a scale reading is quoted as 23.75 ± 0.05 g, which value could not be possible for this reading?
Antworten
  • 23.72 g
  • 23.69 g
  • 23.80 g
  • 23.78 g

Frage 5

Frage
Find z if: x = (2.0 +/- 0.2) cm y = (3.0 +/- 0.6) cm z = x - 2y = [blank_start](-4.0 +/- 0.9)[blank_end] cm Hint: answer will resemble this format: (#.# +/- #.##) units
Antworten
  • (-4.0 +/- 0.9)

Frage 6

Frage
Which of the following units can be used to measure speed?
Antworten
  • m/s
  • ms^-1
  • km/hr
  • ms
  • m/s*s

Frage 7

Frage
If w = (4.52 +/- 0.02) cm and x = (2.0 +/- 0.2) cm, find z if z = wx z = [blank_start](9.0 +/- 0.9)[blank_end] cm^2 Hint: Answer will be in this format: (#.# +/- #.#) units
Antworten
  • (9.0 +/- 0.9)

Frage 8

Frage
If x = (2.0 +/- 0.2) cm and y = (3.0 +/- 0.6) s, find z if z = x/y. z = [blank_start](0.7 +/- 0.2)[blank_end] cm/s Hint: Answer will be in this format: (#.# +/- #.#) units
Antworten
  • (0.7 +/- 0.2)

Frage 9

Frage
Which of the following are vectors?
Antworten
  • Speed
  • Time
  • Velocity
  • Distance
  • Displacement
  • Acceleration

Frage 10

Frage
Take the equation 2x = (g - y) / 2 and solve for g. Hint: For your answer, put a space between every character, so 7a+ 3b will look like 7 x + 3 b. g = [blank_start]4 x + y[blank_end]
Antworten
  • 4 x + y
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