📚 Topic Summary
In circular motion, an object moves along a circular path. The period ($T$) is the time it takes for one complete revolution, measured in seconds. The frequency ($f$) is the number of revolutions per second, measured in Hertz (Hz). These two quantities are inversely related: $f = \frac{1}{T}$ and $T = \frac{1}{f}$. Understanding these concepts is key to analyzing circular motion in various scenarios, from spinning objects to orbiting planets!
🧪 Part A: Vocabulary
Match the following terms with their correct definitions:
| Term |
Definition |
| 1. Period |
A. The number of revolutions per second. |
| 2. Frequency |
B. The distance around the circle. |
| 3. Circular Motion |
C. Motion along a circular path. |
| 4. Hertz |
D. The time for one complete revolution. |
| 5. Circumference |
E. The unit of frequency (cycles per second). |
(Answers: 1-D, 2-A, 3-C, 4-E, 5-B)
✍️ Part B: Fill in the Blanks
Complete the following paragraph using the words provided: frequency, period, circular, Hertz, inversely.
An object in _______ motion completes a cycle repeatedly. The _______ is the time for one cycle, while the _______ is the number of cycles per second, measured in _______. These two values are _______ related to each other.
(Answers: circular, period, frequency, Hertz, inversely)
🤔 Part C: Critical Thinking
Explain how increasing the radius of a circular path, while maintaining the same speed, affects the period and frequency of an object in circular motion.