CINHS Science 10

Here is a complete guide that includes 5 harmful effects of each disaster and what to do before, during, and after an earthquake, landslide, tsunami, and volcanic eruption:
🌍 1. Earthquake
Harmful Effects:
Building collapse leading to injuries or death
Fires due to broken gas lines
Landslides triggered in hilly areas
Damage to roads, bridges, and infrastructure
Power outages and water supply disruption
What to Do:
Before:
Secure heavy furniture and appliances
Prepare an emergency kit
Practice "Drop, Cover, and Hold" drills
Know safe spots (under a table, away from windows)
Plan and discuss evacuation routes with family
During:
Stay calm and do Drop, Cover, and Hold
Stay indoors, away from windows and glass
If outside, go to an open area away from buildings
If in a vehicle, stop safely and stay inside
Avoid using elevators
After:
Check yourself and others for injuries
Watch out for aftershocks
Inspect your surroundings for damage (e.g., gas leaks)
Use phone only for emergencies
Listen to news updates and follow official instructions

🏞️ 2. Landslide
Harmful Effects:
Burial or crushing of people and property
Blockage of roads and communication lines
Destruction of farmland and vegetation
Contamination of water sources
Displacement of families and communities
What to Do:
Before:
Avoid building homes on steep slopes
Check for cracks or bulges on hills
Plant deep-rooted vegetation to stabilize soil
Be aware of local landslide-prone areas
Prepare an emergency kit and evacuation plan
During:
Move away from the path of the landslide quickly
Listen for unusual sounds (cracking trees, rumbling)
Take cover behind a sturdy object if escape isn't possible
Stay alert and informed via radio or mobile alerts
Avoid rivers and low-lying areas
After:
Stay away from the slide area (risk of secondary slides)
Report damages or missing persons to authorities
Help neighbors who may need assistance
Do not drink contaminated water
Wait for official declaration before returning home

🌊 3. Tsunami
Harmful Effects:
Massive flooding and destruction of coastal areas
Death and injury from drowning or debris
Displacement and homelessness
Damage to infrastructure and agriculture
Saltwater contamination of freshwater sources
What to Do:
Before:
Know the tsunami risk in your area
Learn the evacuation routes and high ground locations
Prepare an emergency go-bag
Install alert apps or listen to warnings
Educate family members on safety plans
During:
If you feel an earthquake near the coast, evacuate immediately
Head inland and to higher ground without delay
Do not wait for official warnings if the sea suddenly recedes
Stay away from the beach or shoreline
Keep listening to the radio for updates
After:
Wait for the “all clear” before returning
Avoid walking or driving through floodwaters
Be cautious of damaged buildings and infrastructure
Help others and seek medical help if needed
Boil water or drink bottled water only

🌋 4. Volcanic Eruption
Harmful Effects:
Lava flows destroying property and land
Ashfall affecting lungs, eyes, and visibility
Pyroclastic flows causing instant death and damage
Disruption of air travel and power supply
Long-term impacts on agriculture and water sources
What to Do:
Before:
Know if your area is within the danger zone
Prepare masks and goggles for ash protection
Keep emergency supplies and food/water stocks
Plan evacuation routes and shelter options
Stay updated on volcano alert levels
During:
Follow evacuation orders immediately
Wear masks, goggles, and long clothing
Stay indoors during ashfall; close all windows
Avoid rivers and valleys where lava or lahars may flow
Stay tuned to official news sources
After:
Wait for clearance before returning home
Remove ash from roofs to avoid collapse
Clean ash using wet methods (no sweeping)
Avoid driving unless necessary (ash can damage engines)
Seek medical help for any health issues (e.g., breathing problems)

PLEASE REVIEW FOR THE SEMI FINALS

SEMI-FINALS SCIENCE 10
1. Who is the proponent of Boyle’s Law?
a) Jacques Charles
b) Robert Boyle
c) Joseph Gay-Lussac
d) Blaise Pascal

2. What is the mathematical expression of Boyle’s Law?
a) \( P_1V_1 = P_2V_2 \)
b) \( V_1/T_1 = V_2/T_2 \)
c) \( P_1/T_1 = P_2/T_2 \)
d) \( P_1V_1/T_1 = P_2V_2/T_2 \)

3. Which two variables are inversely proportional in Boyle’s Law?
a) Pressure and temperature
b) Volume and temperature
c) Pressure and volume
d) Pressure and mass

4. If the pressure on a gas increases, what happens to the volume, assuming temperature remains constant?
a) Increases
b) Decreases
c) Stays the same
d) Doubles

5. If the volume of a gas is halved at constant temperature, what happens to its pressure?
a) Doubles
b) Halves
c) Remains constant
d) Triples

6. Who is the proponent of Charles’s Law?
a) Robert Boyle
b) Jacques Charles
c) Joseph Gay-Lussac
d) Daniel Bernoulli

7. What is the mathematical formula of Charles’s Law?
a) \( P_1V_1 = P_2V_2 \)
b) \( V_1/T_1 = V_2/T_2 \)
c) \( P_1/T_1 = P_2/T_2 \)
d) \( P_1V_1/T_1 = P_2V_2/T_2 \)

8. Which two variables are directly proportional in Charles’s Law?
a) Pressure and volume
b) Volume and temperature
c) Pressure and temperature
d) Volume and pressure

9. What happens to the volume of a gas if its temperature increases at constant pressure?
a) Increases
b) Decreases
c) Stays the same
d) Doubles

10. If a balloon is cooled, what happens to its volume?
a) Increases
b) Decreases
c) Remains unchanged
d) Becomes zero

11. Who is the proponent of Gay-Lussac’s Law?
a) Joseph Gay-Lussac
b) Robert Boyle
c) Jacques Charles
d) Blaise Pascal

12. What is the correct mathematical expression for Gay-Lussac’s Law?
a) \( P_1/T_1 = P_2/T_2 \)
b) \( V_1/T_1 = V_2/T_2 \)
c) \( P_1V_1 = P_2V_2 \)
d) \( P_1V_1/T_1 = P_2V_2/T_2 \)

13. Which two variables are directly proportional in Gay-Lussac’s Law?
a) Pressure and volume
b) Volume and temperature
c) Pressure and temperature
d) Pressure and mass

14. If the temperature of a gas increases at constant volume, what happens to its pressure?
a) Increases
b) Decreases
c) Stays the same
d) Doubles

15. What happens to the pressure of a gas if its temperature is decreased while volume remains constant?
a) Increases
b) Decreases
c) Remains the same
d) Becomes zero

16. What is the unit for pressure in gas laws?
a) Pascal
b) Atmosphere (atm)
c) Newton
d) Joule

17. Which of the following is a unit for volume?
a) Kelvin
b) Atmosphere
c) Liters (L)
d) Joules

18. Which of the following is NOT a unit of temperature?
a) Kelvin
b) Celsius
c) Fahrenheit
d) Atmosphere

19. What is the SI unit for temperature?
a) Celsius
b) Fahrenheit
c) Kelvin
d) Joule

20. The temperature unit used in all gas law calculations must be in:
a) Celsius
b) Fahrenheit
c) Kelvin
d) Joule

21. What is the formula for converting Celsius to Kelvin?
a) \( °C + 273.15 \)
b) \( °C - 273.15 \)
c) \( °C × 1.8 + 32 \)
d) \( °C - 32 × 5/9 \)

22. Convert 25°C to Kelvin.
a) 298.15 K
b) 273.15 K
c) 100 K
d) 350 K

23. What is the formula for converting Celsius to Fahrenheit?
a) \( F = (C × 9/5) + 32 \)
b) \( F = (C × 5/9) - 32 \)
c) \( F = (C × 5/9) + 32 \)
d) \( F = (C × 9/5) - 32 \)

24. Convert 100°C to Fahrenheit.
a) 212°F
b) 100°F
c) 150°F
d) 250°F

25. What is the formula for converting Fahrenheit to Celsius?
a) \( C = (F - 32) × 5/9 \)
b) \( C = (F - 32) × 9/5 \)
c) \( C = (F × 5/9) - 32 \)
d) \( C = (F × 9/5) + 32 \)

26. Convert 98.6°F to Celsius.
a) 37°C
b) 100°C
c) 50°C
d) 25°C

27. Convert 0°C to Fahrenheit.
a) 32°F
b) 0°F
c) 100°F
d) -32°F

28. Convert 212°F to Celsius.
a) 100°C
b) 50°C
c) 0°C
d) -40°C

29. Convert 300K to Celsius.
a) 26.85°C
b) 0°C
c) 100°C
d) 273.15°C

30. Convert 77°F to Kelvin.
a) 298.15 K
b) 273.15 K
c) 310 K
d) 250 K

31. A scuba diver descends into the ocean, and the pressure on their air tank increases. What happens to the volume of the gas inside the tank?
a) Increases
b) Decreases
c) Stays the same
d) Doubles

32. A hot air balloon rises because the air inside is heated. Which gas law explains this phenomenon?
a) Boyle’s Law
b) Charles’s Law
c) Gay-Lussac’s Law
d) Dalton’s Law

33. Why do aerosol cans have warnings not to be exposed to high temperatures?
a) The gas inside contracts and causes leaks
b) The pressure inside increases, potentially causing an explosion
c) The volume inside expands indefinitely
d) The temperature has no effect on gases in a sealed container

34. A sealed plastic water bottle is placed inside a car on a hot day. What happens to the air pressure inside the bottle?
a) It increases
b) It decreases
c) It stays the same
d) It turns into a vacuum

35. A sealed syringe is pulled back to increase its volume. What happens to the pressure of the gas inside the syringe?
a) Increases
b) Decreases
c) Remains the same
d) Doubles

36. A balloon shrinks when taken from a warm room to a cold environment. This is an example of:
a) Boyle’s Law
b) Charles’s Law
c) Gay-Lussac’s Law
d) Avogadro’s Law

37. Why do car tires have a recommended pressure for different seasons?
a) Temperature changes affect gas pressure
b) Air molecules escape more in winter
c) The weight of the car affects the gas volume
d) The type of road changes gas behavior

38. If you place a closed bottle of soda in the freezer, it may explode. Why does this happen?
a) The gas in the bottle expands as it freezes
b) The pressure of the liquid increases due to cooling
c) The gas dissolves completely in the soda
d) The bottle contracts and cracks under pressure

39. A basketball left outside overnight in the cold appears deflated. What caused this?
a) The number of gas molecules decreased
b) The volume of air inside the ball decreased
c) The weight of the ball increased
d) The material of the ball expanded

40. A chef uses a pressure cooker to cook food faster. How does increasing the pressure inside the cooker affect the boiling point of water?
a) Lowers the boiling point
b) Raises the boiling point
c) Keeps the boiling point the same
d) Has no effect on the boiling point

REVIEWER FOR EXAM IN SCIENCE THIRD QUARTER

*Male Reproductive System (11 items)**

1. What is the function of the **seminal vesicle**?
a) Produces s***m
b) Stores urine
c) Produces fluid that nourishes s***m ✅
d) Expels waste

2. Where is s***m stored and matured?
a) P***s
b) Epididymis ✅
c) Urethra
d) Sc***um

3. What organ produces **testosterone** and s***m?
a) Prostate gland
b) Vas deferens
c) Te**es ✅
d) Seminal vesicle

4. Which tube carries s***m from the te**es to the urethra?
a) Epididymis
b) Vas deferens ✅
c) Seminal vesicle
d) Re**um

5. What structure regulates temperature for s***m production?
a) Epididymis
b) Prostate gland
c) Urethra
d) Sc***um ✅

6. What is the main function of the **prostate gland**?
a) Produces s***m
b) Releases testosterone
c) Produces fluid to nourish and protect s***m ✅
d) Stores urine

7. What is the **urethra** used for in males?
a) Producing s***m
b) Carrying urine and semen out of the body ✅
c) Storing s***m
d) Filtering blood

8. What is the external male reproductive organ?
a) P***s ✅
b) Urethra
c) Vas deferens
d) Epididymis

9. Which part of the male reproductive system is responsible for semen production?
a) Urethra
b) Seminal vesicle ✅
c) Epididymis
d) Sc***um

10. What is the **primary function of the te**es**?
a) Produce urine
b) Store s***m
c) Produce s***m and hormones ✅
d) Transport semen

11. The **re**um** and **a**s** are included in diagrams of the male reproductive system because:
a) They are part of reproduction
b) They help in s***m production
c) They are located near the reproductive organs ✅
d) They produce hormones

Female Reproductive System (11 Questions)**

1. What is the function of the fallopian tubes?
a) To store eggs
b) To carry eggs from the o***y to the uterus ✅
c) To produce hormones
d) To protect the uterus

2. Where does a fertilized egg implant and grow during pregnancy?
a) O***y
b) Fallopian tube
c) Uterus ✅
d) Cervix

3. What part of the uterus is measured during pregnancy to assess fetal growth?
a) Fundus ✅
b) Myometrium
c) Endometrium
d) Cervix

4. What is another name for the uterine tube?
a) O***y
b) Fallopian tube ✅
c) Va**na
d) Cervix

5. What is the function of the ovaries?
a) To produce s***m
b) To carry eggs to the uterus
c) To produce and store eggs ✅
d) To shed the uterine lining

6. Which structure helps guide the egg from the o***y into the fallopian tube?
a) Endometrium
b) Fimbriae ✅
c) Cervix
d) Myometrium

7. Which part of the female reproductive system serves as the birth canal?
a) Uterus
b) Fallopian tube
c) Va**na ✅
d) O***y

8. What is the function of the cervix?
a) To store eggs
b) To produce estrogen
c) To connect the uterus to the va**na and regulate s***m entry ✅
d) To contract during menstruation

9. What happens to the endometrium if fertilization does not occur?
a) It thickens
b) It sheds during menstruation ✅
c) It moves to the fallopian tube
d) It disappears

10. Which layer of the uterus contracts during childbirth?
a) Myometrium ✅
b) Endometrium
c) Cervix
d) O***y

11. What is a matured egg cell called?
a) Fimbriae
b) O**m ✅
c) Zygote
d) Follicle

# # # **The Menstrual Cycle (14 items)**

12. What is the **first phase** of the menstrual cycle?
a) Ovulation
b) Luteal Phase
c) Follicular Phase ✅
d) Menstrual Phase

13. During the **follicular phase**, what hormone stimulates follicle growth?
a) LH
b) Estrogen
c) Progesterone
d) FSH ✅

14. What occurs during **ovulation**?
a) The egg is released ✅
b) The uterine lining sheds
c) The corpus luteum forms
d) Menstruation begins

15. Which hormone triggers **ovulation**?
a) Estrogen
b) Progesterone
c) LH ✅
d) FSH

16. If fertilization does **not** occur, what happens during the **luteal phase**?
a) The uterine lining thickens
b) The corpus luteum breaks down ✅
c) Ovulation occurs
d) The egg implants

17. What is shed during **menstruation**?
a) Unused eggs
b) Uterine lining ✅
c) Corpus luteum
d) Ovaries

18. What is the purpose of **progesterone** in the luteal phase?
a) Trigger ovulation
b) Maintain the uterine lining ✅
c) Cause menstruation
d) Stimulate follicle growth

19. When is a woman most fertile?
a) Menstrual phase
b) Follicular phase
c) Ovulation phase ✅
d) Luteal phase

20. What occurs **if an egg is fertilized**?
a) Menstruation starts
b) The uterine lining sheds
c) Pregnancy begins ✅
d) The corpus luteum disappears

21. What hormone causes the thickening of the **uterine lining**?
a) Testosterone
b) Progesterone ✅
c) FSH
d) LH

22. The **average menstrual cycle** lasts:
a) 14 days
b) 21 days
c) 28 days ✅
d) 35 days

23. What is the **primary sign** that ovulation has occurred?
a) Increased body temperature ✅
b) Uterine cramping
c) Heavy bleeding
d) Fatigue

24. If an egg is **not fertilized**, which two hormones drop?
a) Estrogen and progesterone ✅
b) FSH and LH
c) Testosterone and progesterone
d) None

25. The **menstrual phase** is when:
a) The egg is released
b) The uterine lining sheds ✅
c) The corpus luteum forms
d) Pregnancy begins

---

# # # **Pregnancy and Labor (15 items)**

26. What is the **first stage of pregnancy** called?
a) Conception
b) First trimester ✅
c) Second trimester
d) Third trimester

27. Where does **fertilization** occur?
a) Uterus
b) Va**na
c) Fallopian tube ✅
d) Ovaries

28. When does the **heartbeat** start developing?
a) First trimester ✅
b) Second trimester
c) Third trimester
d) Birth

29. What organ supplies **oxygen and nutrients** to the fetus?
a) Uterus
b) Placenta ✅
c) Amniotic sac
d) Fallopian tube

30. When does the **baby’s movement (quickening)** start?
a) 1st trimester
b) 2nd trimester ✅
c) 3rd trimester
d) At birth

31. The baby is **fully developed but still growing** during the:
a) 1st trimester
b) 2nd trimester
c) 3rd trimester ✅
d) None of these

32. What is the **first sign of pregnancy**?
a) Labor pains
b) Missed period ✅
c) Baby movements
d) Weight gain

33. **Morning sickness** is most common in the:
a) 1st trimester ✅
b) 2nd trimester
c) 3rd trimester
d) During labor

34. What is the **final stage of labor**?
a) Contractions
b) Water breaking
c) Delivery of placenta ✅
d) Baby’s movement

35. Which position is best for birth?
a) Breech
b) Head-down ✅
c) Sideways
d) Feet first

36. What hormone **triggers labor contractions**?
a) Estrogen
b) Progesterone
c) Oxytocin ✅
d) Testosterone

37. What happens if the **water breaks**?
a) Labor begins ✅
b) Baby stops moving
c) Uterine lining sheds
d) Menstruation starts

38. A **Cesarean section (C-section)** is:
a) A natural birth
b) A surgical birth ✅
c) A preterm birth
d) A painful contraction

39. What is the **main function of the umbilical cord**?
a) Help in labor
b) Nourish the baby ✅
c) Hold the baby in place
d) Transport waste

40. The **average pregnancy lasts**:
a) 28 weeks
b) 30 weeks
c) 40 weeks ✅
d) 50 weeks

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PLEASE WRITE THIS DOWN ON YOUR NOTEBOOK

# **Module: The Menstrual Cycle and Pregnancy**

# # **Learning Objectives:**
By the end of this module, students should be able to:
1. Describe the four phases of the menstrual cycle and their physiological changes.
2. Explain the key stages of pregnancy, from conception to delivery.
3. Identify common signs of early pregnancy, labor, and delivery.
# # **I. The Menstrual Cycle**
The menstrual cycle is a recurring process that prepares the female body for pregnancy. It typically lasts 28 days but can range from 21 to 35 days. The cycle consists of four main phases:

# # # **1. Follicular Phase (Days 1-13)**
- Starts on the first day of menstruation and ends with ovulation.
- The pituitary gland releases **follicle-stimulating hormone (FSH)**, which stimulates the growth of ovarian follicles.
- One dominant follicle matures and releases **estrogen**, which thickens the uterine lining (endometrium) in preparation for a fertilized egg.

# # # **2. Ovulation Phase (Day 14)**
- The mature follicle releases an egg (o**m) due to a surge in **luteinizing hormone (LH)**.
- The egg travels through the fallopian tube, where fertilization may occur if s***m is present.
- Ovulation typically occurs mid-cycle and is the most fertile period.

# # # **3. Luteal Phase (Days 15-28)**
- The ruptured follicle transforms into the **corpus luteum**, which secretes **progesterone** to maintain the uterine lining.
- If fertilization does not occur, the corpus luteum degenerates, leading to a drop in progesterone and estrogen.
- This hormonal decrease signals the body to shed the uterine lining, starting menstruation.

# # # **4. Menstrual Phase (Days 1-5)**
- If pregnancy does not occur, the uterine lining sheds, resulting in menstrual bleeding.
- The body expels blood, mucus, and tissue through the va**na.
- Cramping, bloating, and mood swings may occur due to hormonal changes.

# # **II. Pregnancy Stages**
Pregnancy lasts approximately 40 weeks and is divided into three trimesters:

# # # **1. First Trimester (Weeks 1-12)**
- Fertilization occurs when s***m meets the egg in the fallopian tube.
- The fertilized egg (zygote) travels to the uterus and implants itself in the uterine lining.
- The embryo develops vital organs, including the heart, brain, and spinal cord.
- Common symptoms: nausea (morning sickness), fatigue, breast tenderness, and frequent urination.

# # # **2. Second Trimester (Weeks 13-26)**
- The fetus grows rapidly, developing facial features, limbs, and reflexes.
- The placenta provides oxygen and nutrients to the growing baby.
- The mother may feel the baby’s movements (quickening) around week 18-20.
- Symptoms include an increase in energy, reduced nausea, and a growing belly.

# # # **3. Third Trimester (Weeks 27-40)**
- The fetus continues to grow, gaining weight and strengthening its muscles.
- The baby’s lungs mature, preparing for breathing outside the womb.
- The mother may experience back pain, swelling, and shortness of breath as the uterus expands.
- The baby moves into a head-down position in preparation for birth.

# # **III. Signs of Early Pregnancy**
- Missed period
- Nausea and vomiting (morning sickness)
- Breast tenderness and enlargement
- Increased urination
- Fatigue
- Food cravings or aversions
- Mood swings

# # **IV. Labor and Delivery**
Labor is the process of childbirth and is divided into three stages:

# # # **1. Early and Active Labor (Stage 1)**
- **Early labor**: Mild contractions, cervix begins to dilate (0-6 cm).
- **Active labor**: Stronger contractions, cervix dilates to 10 cm.
- Water may break (rupture of amniotic sac).
- Mother may feel intense pain and pressure.

# # # **2. Delivery of the Baby (Stage 2)**
- The baby moves through the birth canal.
- The mother pushes with contractions.
- The baby is delivered, and the umbilical cord is cut.

# # # **3. Delivery of the Placenta (Stage 3)**
- After the baby is born, the placenta detaches from the uterus and is expelled.
- The uterus contracts to prevent excessive bleeding.

Activity for January 32, 2025 Modular.
Please answer on your notebook

reviewer in science 2nd quarter

Which of the following is a positive effect of using gadgets?
Answer: Enhanced learning through interactive apps

Which is a negative impact of prolonged gadget use?
Answer: Eye strain

What is one benefit of gadgets in education?
Answer: Provides access to online courses

One major drawback of overusing technology is:
Answer: Decreased sleep quality

Which of the following is a way to mitigate negative effects of gadgets?
Answer: Use of blue-light filters

Which of the following is NOT an example of a transverse wave?
Answer: Sound waves

What is the direction of vibration in transverse waves?
Answer: Perpendicular to wave propagation

Microwaves are a type of:
Answer: Transverse wave

What type of wave is a seismic S wave?
Answer: Transverse

Which of these is an example of a transverse wave?
Answer: Radio waves

Which is a defining feature of longitudinal waves?
Answer: Vibrations are parallel to wave motion

Which is NOT an example of a longitudinal wave?
Answer: X-rays

Sound waves in a flute are classified as:
Answer: Longitudinal waves

Shock waves caused by explosions are an example of:
Answer: Longitudinal waves

What type of wave propagation is demonstrated in a Kundt’s tube?
Answer: Longitudinal wave propagation

Which type of radio channel is commonly used for news broadcasts?
Answer: AM

FM radio is primarily used for:
Answer: Entertainment and music

AM radio waves are preferred for news because they:
Answer: Travel longer distances

Which radio channel is known for clearer sound quality?
Answer: FM

Which of the following is a disadvantage of AM channels?
Answer: Poor sound quality

The center of curvature (CC) is the:
Answer: Center of the mirror's curvature

The principal axis is:
Answer: A straight line through the center of curvature and vertex

An upright image formed by a concave mirror is:
Answer: Always virtual

What type of image is formed when an object is placed between the focal point and the concave mirror?
Answer: Virtual, upright, and magnified

If an object is at the center of curvature of a concave mirror, the image is:
Answer: Real, inverted, and the same size as the object

The vertex of a concave mirror is the:
Answer: Point where the principal axis meets the mirror

Polarized light is a type of:
Answer: Transverse wave

In ray diagramming, the size of the image can be described as:
Answer: Magnified or diminished

The type of image formed by a concave mirror depends on:
Answer: The object's position relative to the focal point

If an image is real, it is also always:
Answer: Inverted

Which wave requires a medium for propagation?
Answer: Sound waves

Which is an example of a wave with both transverse and longitudinal components?
Answer: Water waves

What happens to the amplitude of a sound wave as it travels through a medium?
Answer: It decreases

What is the characteristic of a virtual image?
Answer: It is always upright

What type of light wave is used in medical imaging like X-rays?
Answer: Transverse waves

What type of image is formed when the object is placed at the focal point of a concave mirror?
Answer: No image is formed

What is the purpose of using FM radio for music?
Answer: FM provides better sound quality

What is the relationship between frequency and wavelength in a transverse wave?
Answer: Inversely proportional

In seismic waves, which type travels faster?
Answer: P waves

Which of the following instruments uses longitudinal waves to produce sound?
Answer: Flute

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