Phsc 121 exam questions - Study guides, Class notes & Summaries

Why are most of the constellations that were invented in modern times composed of faint stars or located in the southern sky? Faint stars or stars in the southern sky were not visible to early astronomers observing from northern latitudes How does the Greek letter designation of a star give you clues both to its location and its apparent brightness? The brightest star in a constellation is usually designated as Alpha, the second brightest as Beta, and so on. The star's approximate lo...

Chapter 5 Final Exam Practice Questions 2024. What is the difference between mass and weight? - CORRECT ANSWER Mass is a measure of the amount of matter in something and weight is the force exerted by the gravity on an object What is the difference between speed and velocity? - CORRECT ANSWER Speed is the distance traveled by and object and velocity is the distance traveled by an object per unit in time in a particular direction