A Spaceship Is Moving Away from an Observer at Relativistic

question 25

Multiple Choice

A spaceship is moving away from an observer at relativistic speed.Its length at rest is 100 m,but the observer measures its length as 67 m.A time interval of 100 s on the spaceship would be measured by the observer to be which of the following?

• A) 200 s
• B) 150 s
• C) 50 s
• D) 100 s

---

Definitions:

Topic Sentence

A sentence that expresses the main idea of a paragraph, serving as a summary or introduction to the following content.

Documentary Journalist

A documentary journalist is a professional who investigates and reports on real-life stories, issues, and events, presenting them in a factual and informative manner, often in film or television format.

Architect

A professional who plans, designs, and oversees the construction of buildings.

Henry Steinway

The founder of the Steinway & Sons piano company, known for producing high-quality grand and upright pianos.