50+ Waves worksheets for 8th Year on Quizizz | Free & Printable - Free Printable

Problem Analysis and Solution

The image contains a series of multiple-choice questions about waves. Let's solve each question step by step.

---

#### Question 1: The highest point on a wave is:
- Image Description: A wave diagram with a labeled point at the highest part of the wave.
- Options:
- A. the crest
- B. the trough
- C. the coast
- D. the top

Solution:
- In wave terminology, the highest point of a wave is called the crest.
- The trough is the lowest point of the wave.
- "Coast" and "top" are not standard terms used in wave descriptions.

Answer: A. the crest

---

#### Question 2: Which word is used to identify the distance between points C & G?
- Image Description: A wave diagram with points labeled C and G. These points are separated by one complete wave cycle.
- Options:
- A. Crest
- B. Wavelength
- C. Amplitude
- D. Frequency

Solution:
- The wavelength is defined as the distance between two consecutive crests (or troughs) of a wave. Points C and G appear to be separated by one complete wave cycle, which corresponds to the wavelength.
- The crest is a specific point on the wave, not a distance.
- The amplitude is the height from the equilibrium position to the crest or trough.
- The frequency is the number of waves passing a point per unit time, not a distance.

Answer: B. Wavelength

---

#### Question 3: Which wave in the diagram has the greatest frequency?
- Image Description: Four wave diagrams labeled 1, 2, 3, and 4. The waves vary in how closely spaced their crests are.
- Options:
- A. 1
- B. 2
- C. 4
- D. 3

Solution:
- Frequency is the number of wave cycles that pass a given point per unit time. It is inversely proportional to the wavelength. Waves with shorter wavelengths have higher frequencies.
- Observing the diagrams:
- Wave 1 has the longest wavelength.
- Wave 2 has a shorter wavelength than Wave 1.
- Wave 3 has an even shorter wavelength than Wave 2.
- Wave 4 has the shortest wavelength of all.
- Since Wave 4 has the shortest wavelength, it has the greatest frequency.

Answer: C. 4

---

#### Question 4: Which wave in the diagram has the greatest wavelength?
- Image Description: Four wave diagrams labeled 1, 2, 3, and 4. The waves vary in how closely spaced their crests are.
- Options:
- A. 4
- B. 3
- C. 1
- D. 2

Solution:
- Wavelength is the distance between two consecutive crests (or troughs) of a wave. Waves with longer wavelengths have fewer crests in a given space.
- Observing the diagrams:
- Wave 1 has the longest wavelength.
- Wave 2 has a shorter wavelength than Wave 1.
- Wave 3 has an even shorter wavelength than Wave 2.
- Wave 4 has the shortest wavelength of all.
- Since Wave 1 has the longest wavelength, it has the greatest wavelength.

Answer: C. 1

---

#### Question 5: What property of the wave is represented by the letter "B"?
- Image Description: A wave diagram with a labeled point "B" at the midpoint between the crest and trough.
- Options:
- (Not provided in the image, but we can infer based on the context.)

Solution:
- The point labeled "B" is located at the midpoint between the crest and trough of the wave. This midpoint represents the equilibrium position of the wave.
- The equilibrium position is the line around which the wave oscillates. It is also known as the rest position or the mean position.

Answer: Equilibrium position

---

Final Answers:

1. A. the crest
2. B. Wavelength
3. C. 4
4. C. 1
5. Equilibrium position

Boxed Final Answer:
\[
\boxed{\text{A, B, C, C, Equilibrium position}}
\]