When a Sparkler Is Twirled Rapidly, People Perceive a Circle

question 31

Multiple Choice

When a sparkler is twirled rapidly, people perceive a circle of light. This occurs because

• A) the trail you see is caused by sparks left behind from the sparkler.
• B) longer light wavelengths from the sparkler produce a visual echoic effect.
• C) the length of iconic memory is about a fraction of a second.
• D) Gestalt principles work to complete the circle in our minds.

---

Definitions:

Work Design Characteristics

Features of a job that affect the manner in which its tasks and responsibilities are structured.

Attributes

Qualities, features, or characteristics that define or identify something or someone.

Broader Work Environment

The wide range of physical, social, and organizational factors that influence individuals' behavior, attitudes, and performance at work.

Job Crafting Behaviours

The actions employees take to shape, mold, and redefine their jobs in a manner that fosters job satisfaction, engagement, resilience, and thriving at work.