PSCI 1421 – Measuring the Velocity of a Coronal
Mass Ejection – Lab 10 multiple-choice practice
questions with answer key
Introduction:
This document contains 50 multiple-choice questions and an
answer key focused on measuring the velocity of a coronal mass
ejection. Topics include average velocity, acceleration, position-
versus-time graphs, image scales, solar radii, measurement
uncertainty, random and systematic errors, significant figures,
units, and CME motion and space weather. The material also
includes calculation-based questions and data-analysis concepts
relevant to the lab.
Exam Questions and Answers
, PSCI 1421 Lab 10 – Measuring the Velocity of a Coronal
Mass Ejection
50 questions
Name: Date: Score:
1. What is one major scientific reason for measuring CME velocities?
A To measure Earth's ocean depth
B To understand how quickly solar eruptions propagate through space
C To determine the exact number of stars in the galaxy
D To identify all lunar craters
2. What is the purpose of using a scale in an astronomical image?
A To calculate the Sun's age
B To identify Earth's atmosphere
C To relate image distances to physical distances
D To determine the CME's temperature directly
3. What is random error?
A A fixed bias in one direction
B Unpredictable variation among repeated measurements
C A type of unit
D A physical law
Mass Ejection – Lab 10 multiple-choice practice
questions with answer key
Introduction:
This document contains 50 multiple-choice questions and an
answer key focused on measuring the velocity of a coronal mass
ejection. Topics include average velocity, acceleration, position-
versus-time graphs, image scales, solar radii, measurement
uncertainty, random and systematic errors, significant figures,
units, and CME motion and space weather. The material also
includes calculation-based questions and data-analysis concepts
relevant to the lab.
Exam Questions and Answers
, PSCI 1421 Lab 10 – Measuring the Velocity of a Coronal
Mass Ejection
50 questions
Name: Date: Score:
1. What is one major scientific reason for measuring CME velocities?
A To measure Earth's ocean depth
B To understand how quickly solar eruptions propagate through space
C To determine the exact number of stars in the galaxy
D To identify all lunar craters
2. What is the purpose of using a scale in an astronomical image?
A To calculate the Sun's age
B To identify Earth's atmosphere
C To relate image distances to physical distances
D To determine the CME's temperature directly
3. What is random error?
A A fixed bias in one direction
B Unpredictable variation among repeated measurements
C A type of unit
D A physical law
