KUSH ACADEMY(Team Physics Study)

ማስታወቂያ
12ኛ ክፍል ሀገር አቀፍ ፈተናን በድጋሚ የሚፈተኑ ተፈታኞች በራሳቸው የሚመዘገቡበትን አድራሻ https://register.eaes.et/Online በመጠቀም በበየነ መረብ መመዝገብ ይችላሉ።

ይህ የበይነ መረብ ምዝገባ መተግበሪያ ራስ አገዝ (self services ) ሲሆን ተመዝጋቢዎች የሚፈልጉትን ድጋፍ በመጠየቅ ከማዕከል ማግኘት ይችላሉ።

ከዚህ መልዕክት ጋር የተያያዙ መረጃዎች ተመዝገቢዎች በቀላሉ መመዝገብ እንዲችሉ አጋዥ ስለሆኑ ተጠቀሙባቸው።

የትምህርት ምዘናና ፈተናዎች አገልግሎት

Physics Two-Dimensional Motion (Projectile Motion) Questions For Grade 12.

1. Which of the following is true about a projectile in motion? 
   A) It has no horizontal velocity. 
   B) Its horizontal acceleration is zero. 
   C) Its vertical acceleration is zero. 
   D) Both horizontal and vertical accelerations are constant. 

2. What is the shape of the path followed by a projectile under uniform gravity (neglecting air resistance)? 
   A) Circle 
   B) Straight line 
   C) Parabola 
   D) Ellipse 

3. If a ball is thrown horizontally, what determines the time it takes to hit the ground? 
   A) Its horizontal speed 
   B) The height from which it is thrown 
   C) Its horizontal distance 
   D) The angle of projection 

4. At the top of its trajectory, the vertical velocity of a projectile is: 
   A) Maximum 
   B) Zero 
   C) Equal to the horizontal velocity 
   D) Negative 

5. The horizontal component of a projectile's velocity: 
   A) Decreases continuously. 
   B) Increases continuously. 
   C) Remains constant. 
   D) Becomes zero at the top of its trajectory. 

6. The range of a projectile is maximum when the angle of projection is: 
   A) 30° 
   B) 45° 
   C) 60° 
   D) 90° 

7. The motion of a projectile is an example of: 
   A) Uniform motion 
   B) Uniform acceleration 
   C) Non-uniform acceleration 
   D) Combination of uniform and uniformly accelerated motion 

8. The time of flight of a projectile depends on: 
   A) Only the horizontal velocity 
   B) Only the vertical velocity 
   C) The initial velocity and the angle of projection 
   D) The horizontal distance covered 

9. If the initial velocity of a projectile is doubled, what happens to its range (assuming the same angle of projection)? 
   A) It doubles 
   B) It quadruples 
   C) It remains unchanged 
   D) It halves 

10. In two-dimensional motion, which quantity is always independent of the other? 
    A) Horizontal acceleration 
    B) Vertical displacement 
    C) Horizontal velocity 
    D) Vertical velocity 

11. When a projectile is launched at an angle to the horizontal, its maximum height depends on: 
    A) The horizontal component of velocity 
    B) The vertical component of velocity 
    C) The total velocity 
    D) The angle of projection 

12. Which of the following best describes the acceleration of a projectile? 
    A) It is zero. 
    B) It is directed downward and constant. 
    C) It varies with time. 
    D) It is directed along the projectile's path. 

13. The velocity of a projectile at its highest point is: 
    A) Zero 
    B) Entirely horizontal 
    C) Entirely vertical 
    D) Equal to its initial velocity 

14. What is the vertical acceleration of a projectile? 
    A) 0 m/s² 
    B) 9.8 m/s² upward 
    C) 9.8 m/s² downward 
    D) Depends on the launch speed 

15. For an object undergoing projectile motion, which of the following quantities remain constant throughout the motion? 
    A) Vertical velocity 
    B) Total speed 
    C) Horizontal velocity 
    D) Acceleration 

16. The total time of flight of a projectile is proportional to: 
    A) Initial horizontal velocity 
    B) Initial vertical velocity 
    C) Initial velocity 
    D) None of the above 

17. If a projectile's launch angle is increased from 30° to 60° while keeping the same initial speed, its range will: 
    A) Increase 
    B) Decrease 
    C) Remain the same 
    D) Be zero 

18. A stone is thrown horizontally from a cliff. Neglecting air resistance, its horizontal velocity: 
    A) Increases due to gravity 
    B) Decreases due to gravity 
    C) Remains constant 
    D) Becomes zero at the ground 

19. The magnitude of the velocity of a projectile is maximum at: 
    A) The highest point 
    B) The point of launch 
    C) The point of impact 
    D) When its horizontal and vertical velocities are equal

Use it!
Physics Questions with Answers Form Grade 9-12.

Barattoota sagantaa Fooyyeffannaatiin (Remedial program) bara barnootaa 2017tti Yuunivarsiitii Wachemo ramadamtan hundaaf;

Guyyaan galmee Mudde 21-22/2017 ALI yoo ta'u, guyyaan barnootni itti eegalu Mudde 23/2017 ta'uu isiin beeksifna jedha Yuunivarsiitii Wachemo . Share for your friends

#BahirDarUniversity

Barattoota sagantaa Fooyyeffannaatiin (Remedial program) bara barnootaa 2017tti Yuunivarsiitii Bahara-Daar ramadamtan hundaaf;

Guyyaan galmee Amajjii 4-5/2017 ALI tahu beektanii qophii barbaachisuu akka gootan isiinif dhaamna . Share for your friends

Barattoota sagantaa Fooyyeffannaatiin (Remedial program) bara barnootaa 2017tti Yuunivarsiitii Haramayaa ramadamtan hundaaf;

Guyyaan galmee Amajjii 2-3/2017 ALI tahu beektanii qophii barbaachisuu akka gootan isiinif dhaamna . Share for your friends

Barattoota sagantaa Fooyyeffannaatiin (Remedial program) bara barnootaa 2017tti Yuunivarsiitii Odaa Bultumitti ramadamtan hundaaf;

Guyyaan galmee Mudde 7-8/2017 ALI yoo ta'u, guyyaan barnootni itti eegalu Mudde 9/2017 ta'uu isiin beeksifna jedha Yuunivarsiitii Odaa Bultum . Share for your friends

✅ Fundamental physics terms along with their definitions:

1. Force: An interaction that causes an object to change its velocity, measured in newtons (N).

2. Mass: A measure of the amount of matter in an object, typically measured in kilograms (kg).

3. Acceleration: The rate of change of velocity of an object with respect to time, measured in meters per second squared (m/s²).

4. Velocity: The speed of an object in a specific direction, expressed in meters per second (m/s).

5. Energy: The capacity to do work, which can exist in various forms such as kinetic, potential, thermal, etc., measured in joules (J).

6. Work: The process of energy transfer that occurs when a force is applied to an object over a distance, calculated as the product of force and displacement.

7. Power: The rate at which work is done or energy is transferred, measured in watts (W).

8. Kinetic Energy: The energy possessed by an object due to its motion, calculated as  KE = ½mv² .

9. Potential Energy: The energy stored in an object due to its position or configuration, commonly gravitational potential energy given by  PE = mgh .

10. Momentum: The product of an object's mass and its velocity, representing the quantity of motion it possesses, calculated as  p = mv .

11. Newton's First Law: An object at rest stays at rest, and an object in motion stays in motion with the same speed and direction unless acted upon by a net external force.

12. Newton's Second Law: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as  F = ma .

13. Newton's Third Law: For every action, there is an equal and opposite reaction.

14. Thermodynamics: The branch of physics that deals with heat, work, temperature, and the laws governing energy transfer.

15. Wave: A disturbance that transfers energy through space and matter, characterized by properties such as wavelength, frequency, and amplitude.

16. Frequency: The number of cycles of a wave that occur in a unit of time, measured in hertz (Hz).

17. Refraction: The bending of light or other waves as they pass from one medium to another due to a change in speed.

18. Electromagnetism: The branch of physics that studies the interaction between electric charges and magnetic fields.

19. Quantum Mechanics: The branch of physics that deals with the behavior of matter and light on the atomic and subatomic levels.

20. Relativity: A theory proposed by Albert Einstein that describes the laws of physics in relation to observers in different frames of reference, particularly regarding the effects of gravity and the speed of light.

✅✅ Biology Questions & Answers

1. Which process is primarily responsible for the production of ATP in cells?
   A) Glycolysis
   - B) Photosynthesis
   - C) Cellular respiration
   - D) Fermentation
   - Answer: C)
2. Which of the following structures is found in plant cells but not in animal cells?
   - A) Mitochondria
   - B) Ribosomes
   - C) Cell wall
   - D) Nucleus
   - Answer: C) Cell wall
3. What is the primary function of the ribosome?
   - A) DNA replication
   - B) Protein synthesis
   - C) Lipid synthesis
   - D) Energy production
   - Answer: B) Protein synthesis
4. Which molecule carries genetic information from the nucleus to the cytoplasm?
   - A) DNA
   - B) mRNA
   - C) tRNA
   - D) rRNA
   - Answer: B) mRNA
5. Which phase of mitosis is characterized by the alignment of chromosomes in the center of the cell?
   - A) Prophase
   - B) Metaphase
   - C) Anaphase
   - D) Telophase
   - Answer: B) Metaphase
6. Which of the following is an example of a homozygous genotype?
   - A) Aa
   - B) BB
   - C) AB
   - D) Bb
   - Answer: B) BB
7. Which hormone regulates the levels of glucose in the blood?
   - A) Insulin
   - B) Thyroxine
   - C) Adrenaline
   - D) Estrogen
   - Answer: A) Insulin
8. Which of the following is not a component of the central nervous system?
   - A) Brain
   - B) Spinal cord
   - C) Peripheral nerves
   - D) All of the above are part of the central nervous system
   - Answer: C) Peripheral nerves
9. Which kingdom includes multicellular, photosynthetic organisms?
   - A) Fungi
   - B) Animalia
   - C) Plantae
   - D) Protista
   - Answer: C) Plantae
10. What is the basic unit of structure and function in living organisms?
    - A) Organ
    - B) Cell
    - C) Tissue
    - D) Organ system
    - Answer: B) Cell
11. What is the primary function of chlorophyll in photosynthesis?
    - A) Absorbing water
    - B) Absorbing sunlight
    - C) Producing oxygen
    - D) Producing glucose
    - Answer: B)
12. Which of the following best describes an ecosystem?
    - A) A group of the same species living in a specific area
    - B) A community of organisms and their physical environment interacting together
    - C) The variety of life within a specific habitat
    - D) A single organism and its role in the environment
    - Answer: B)
13. What is the primary role of mitochondria in cells?
    - A) Protein synthesis
    - B) Photosynthesis
    - C) ATP production
    - D) DNA replication
    - Answer: C) ATP production
14. Which type of macromolecule are enzymes?
    - A) Carbohydrates
    - B) Lipids
    - C) Proteins
    - D) Nucleic acids
    - Answer: C) Proteins

You should have these points in mind!

✅ "Names and Formulas of Chemical Elements!"

🔺Common salt = NaCl
🔺Baking soda = NaHCO₃
🔺Washing soda = Na₂CO₃ 10H₂O
🔺Caustic Soda = NaOH
🔺Suhaga = Na₂B₄O₇ 10H₂O
🔺Alum = K₂SO₄ Al₂(SO₄)₃ 24H₂O
🔺Red medicine = KMnO₄
🔺Caustic Potash = KOH
🔺Saltpeter = KNO₃
🔺Bleaching powder = Ca(OCl)Cl
🔺lime water = Ca(OH)₂
🔺Gypsum = CaSO₄ 2H₂O
🔺Plaster of Paris = CaSO₄ ½H₂O
🔺Chalk = CaCO₃
🔺Limestone = CaCO₃
🔺Marble = CaCO₃
🔺Nausadar = NH4Cl
🔺Laughing gas = N₂O
🔺Litharge = PbO
🔺Galena = PbS
🔺Red vermilion = Pb₃O₄
🔺White lead = 2PbCO₃ Pb(OH)₂
🔺Salt acid = HCl
🔺Shore's acid = HNO₃
🔺Amalraj = HNO₃ + HCl (1 : 3)
🔺Dry ice = CO₂
🔺Green Case = FeSO₄ 7H₂O
🔺Horn Silver = AgCl
🔺Heavy water = D₂O
🔺Producer gas = CO + N₂
🔺Marsh gas = CH₄
🔺Vinegar = CH₃COOH
🔺Gemaxine = C₆H₆Cl₆
🔺Blue Case = CuSO₄ 5H₂O
🔺alcohol = C₂H₅OH
🔺Mand = C₆H₁₀O₅
🔺Grape juice = C₆H₁₂O₆
🔺sugar = C₁₂H₂₂O₁₁
🔺Urea = NH₂CONH₂
🔺Benzene = C₆H₆

✅Chemistry
⏩ About atomic theory, along with their answers:

1. Who proposed the first atomic theory based on philosophical reasoning?

a) Albert Einstein
b) John Dalton
c) Ernest Rutherford
d) Niels Bohr
Answer: b) John Dalton


2. According to John Dalton's atomic theory, atoms are:

a) Indivisible and indestructible particles
b) Made up of protons, neutrons, and electrons
c) Composed of positively charged protons and negatively charged electrons
d) Always in motion around the nucleus
Answer: a) Indivisible and indestructible particles


3. Who discovered the electron and proposed the plum pudding model of the atom?

a) Ernest Rutherford
b) J.J. Thomson
c) Niels Bohr
d) Marie Curie
Answer: b) J.J. Thomson


4. Which scientist's experiment led to the discovery of the atomic nucleus?

a) J.J. Thomson
b) Niels Bohr
c) Ernest Rutherford
d) Max Planck
Answer: c) Ernest Rutherford


5. According to Bohr's model of the atom, electrons:

a) Move in random orbits around the nucleus
b) Move in circular orbits at fixed energy levels
c) Move in continuous orbits with varying energy
d) Move at the speed of light around the nucleus
Answer: b) Move in circular orbits at fixed energy levels

Biology   EUEE
Questions and answers with explanation

1. What is the primary neurotransmitter affected by most drugs of abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine

   Explanation: Dopamine is the primary neurotransmitter affected by ...See more

2. Which part of the brain is commonly associated with addiction and reward pathways?
   A. Cerebellum
   B. Hippocampus
   C. Amygdala
   D. Nucleus accumbens

   Answer: D. Nucleus accumbens
Explanation: The nucleus accumbens is a ...See more

3. What is the term for the phenomenon where higher doses of a drug are needed to achieve the same effect over time?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Overdose

   Answer: A. Tolerance
Explanation: Tolerance refers to the body's ...See more

4. Which class of drugs depresses the central nervous system and slows down brain activity?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: B. Depressants
   Explanation: Depressant drugs slow down brain activity and ...See more

5. What is the term for the physiological and psychological symptoms experienced when drug use is discontinued?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: B. Withdrawal
   Explanation: Withdrawal refers to the symptoms that occur ...See more

6. Which neurotransmitter is commonly associated with pleasure, reward, and addiction in the context of drug abuse?
   A. Serotonin
   B. Dopamine
   C. Acetylcholine
   D. GABA (gamma-aminobutyric acid)

   Answer: B. Dopamine
   Explanation: Dopamine is a neurotransmitter involved in ...See more

7. What is the term for the compulsive, uncontrollable use of a substance despite negative consequences?
   A. Tolerance
   B. Withdrawal
   C. Dependence
   D. Addiction

   Answer: D. Addiction
   Explanation: Addiction is characterized by ...See more

8. Which class of drugs alters perception, mood, and cognitive processes, often leading to hallucinations?
   A. Stimulants
   B. Depressants
   C. Hallucinogens
   D. Opioids

   Answer: C. Hallucinogens
   Explanation: Hallucinogens are drugs that distort ...See more

9. What is the term for the intense craving for a drug that can occur even after long periods of abstinence?
   A. Tolerance
   B. Withdrawal
   C. Relapse
   D. Craving

   Answer: D. Craving
   Explanation: Craving refers to the strong desire or ...See more

10. Which part of the brain is responsible for decision-making, impulse control, and judgment, often impaired by drug abuse?
    A. Cerebellum
    B. Prefrontal cortex
    C. Brainstem
    D. Thalamus

    Answer: B. Prefrontal cortex
    Explanation: The prefrontal cortex is involved in ...

Dambi Doolloo Yuuniveersiiti
Yaamicha Galmee Barattootaa

#Yaamicha Galmee
#Ambo University

Barattoota Bara 2017 Yuuniveersity Ambootti ramadamtaan Guyyaan Galmee sadaasa 9-10 Barattootaa Waggaa Jalqabaa(Fresh man) taatanif, Remedial immoo gara fuuladurraattii kan isiin beeksifnu taha jedha ragaan Yuuniveersiiti irraa argannee.

✅Wantootaa Galmaa'uuf kan barbaachisu:

- Orijinaala fi kooppii waraqaa ragaa kutaa 8ffaa, .
- Orijinaala fi kooppii bu'aa qormaata biyyoolessaa kutaa 10ffaa fi 12ffaa, .
- Orijinaala fi kooppii tiraanskriiptii kutaa 9ffaa-12ffaa;
- Suuraa afur, .
- meeshaalee ispoortii sin barbaachisa.

#Yuunivarsitii Dirree Dhawaa

Barattoota haaraa(Fresh Man) bara 2017 Yunivarsitii Dirree Dawaatti ramadamantaan hundaaf!
guyyaan galmee Sadaasa 16 fi 17, 2017 ta’uu yunivarsiitichi beeksiseera.
#Hubachiisa
Barattoonni Remedial ramaddamtaan Gara fuula duraatti kan ifoomu taha jedha ragaan yuuniveersitii irraa argamee.

Dear students!
This work sheets for grade 11th students.
Share, forward, invites your friends to get our daily post.

#HaramyaUniversity
Barattootaa bara barnootaa 2017 A.L. I haaraa idileedhan yuuniveersitii haramayaa ramadamtaan hundaaf guyyaan galmee sadaasa9-11Qaaman argamuu akka galmooftan yuuniveersitichi beeksisee jira.

በ2017 ትምህርት ዘመን ሐረማያ ዩኒቨርሲቲ የተመደባችሁ አዲስ የፍሬሽማን ቅድመ-ምረቃ ፕሮግራም ተማሪዎች እንዲሁም በ2016 ዓ.ም የሪሚዲያል ፕሮግራም ትምህርታችሁን በሐረማያ ዩኒቨርሲቲ ተከታትላችሁ የማለፊያ ውጤት ያመጣችሁ ተማሪዎች ሪፖርት ማድረጊያ ጊዜ ከህዳር 9 እስከ 11/2017 ዓ.ም መሆኑን ዩኒቨርሲቲው አሳውቋል፡፡

ምዝገባ ለማድረግ የሚያስፈልጉ፦
- የ8ኛ ክፍል ካርድ፣
- ከ9ኛ-12ኛ ክፍል ትራንስክሪፕት፣
- የ12ኛ ከፍል ሰርትፍኬት ዋናውና ኮፒው፣
- 6 ፓስፖርት መጠን ፎቶግራፍ፣
- ብርድልብስ፣ አንሶላ፣ ትራስ ልብስ እና የስፖርት ትጥቅ መያዝ ይጠበቅባችኋል፡፡

ከላይ የተዘረዘሩትን የትምህርት ማስረጃዎች እና ፎቶግራፍ ስካን አድርጋችሁ በሶፍት ኮፒ መያዝ ይኖርባችኋል፡፡

#HawassaUniversity
Barattootaa bara Barnootaa 2017 yuuniveersiti Hawassa idileen ramadamtaan hundaaf guyyaan galmee sadaasa 9 fi 10 tahuu yuuniveersitichi beeksisee jira.
ሀዋሳ ዩኒቨርሲቲ በ2017 ዓ.ም በመደበኛ የዲግሪ ፕሮግራም አዲስ የተመደባችሁ ተማሪዎች የምዝገባ ጊዜ ኀዳር 9 እና 10/2017 ዓ.ም መሆኑን አሳውቋል፡፡

የምዝገባ ቦታ፦
- የተፈጥሮ ሳይንስ ተማሪዎች በዋናው ግቢ
- የማኅበራዊ ሳይንስ ተማሪዎች በቴክኖሎጂ ኢንስቲትዩት ግቢ

ለምዝገባ ስትሔዱ ልትይዟቸው የሚገቡ፦

➭ የ12ኛ ክፍል ፈተና ውጤት ዋናውና ኮፒው፣
➭ ከ9ኛ-12ኛ ክፍል ትራንስክሪፕት ዋናውና ኮፒው፣
➭ አራት ጉርድ ፎቶግራፍ፣
➭ አንሶላ፣ ብርድ ልብስ እና ትራስ ጨርቅ፣
➭ የስፖርት ትጥቅ

#Yuunivarsiitii OdaBultum

Barattoonni bara 2016 sagantaa sirreeffama irratti hirmaatan qabxii seensaa yuunivarsiitii galmeessisanii fi bara 2017 Yunivarsiitii Oda Bultum haaraatti ramadamaniif guyyaan galmee Sadaasa 4 fi 5, 2017 ta’uu beeksise.

Galmaa'uuf kan barbaachisu:

- Orijinaala fi kooppii waraqaa ragaa kutaa 8ffaa, .
- Orijinaala fi kooppii bu'aa qormaata biyyoolessaa kutaa 10ffaa fi 12ffaa, .
- Orijinaala fi kooppii tiraanskriiptii kutaa 9ffaa-12ffaa;
- Suuraa afur, .
- meeshaalee ispoortii sin barbaachisa.

#Yuunivarsitii_Raayyaa

Barattoota haaraa bara 2017 Yunivarsitii Raayyaatti ramadamanii fi kanneen bara 2016 sagantaa sirreeffama (Rimeediyaali)fudhatanii bu’aa galmee yunivarsitii argatan guyyaan galmee Sadaasa 2 fi 3, 2017 ta’uu yunivarsiitichi beeksiseera.
Sadaasa 9/2017 barnoonni akka eegalu ibsameera.
#Hubachiisa
Barattoota guyyaa ibsame alatti dursaniis ta'ee, boodatti hafanii dhufan Yuunivarsiitichi kan hin keessummeessine ta'uu ibseera.

Seed structure

Check the PDF file attached.

​​Here are some (unscientific) tips for predicting this year's winners of the physics Nobel prize

✅Source : Click here
https://physicsworld.com/a/use-our-infographic-to-predict-this-years-nobel-prize-winners/
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Who is the first mother of physics?

Marie Curie was the first truly famous woman scientist in the modern world. She was known as the "Mother of Modern Physics" for her pioneer work in research about radioactivity.

⏩Qabxiin seensa sagantaa fooyyess (Remedial) dandeettii barattoota bara barnootaa 2016 qormaata biyyaalessaa kutaa 12ffaa fudhatanii ifoomeera.

Haaluma kanaan:-

1.Barattoota dhiiraa Saayinsii Uumamaa fi Haawaasummaan qormaata 600 keessaa fudhataniif qabxiin seensaa 204,

2.Barattoota Shamarranii Saayinsii Uumamaa fi Hawaasummaan qormaata 600 keessaa fudhataniif qabxiin seensaa 192,

3.Barattoota dhiiraa naannolee guddattootaa fi naannawaa Horsiisee bulaarraa Saayinsii Uumamaa fi Hawaasummaan qormaata 600 keessaa fudhataniif qabxiin seensaa 192,

4.Barattoota Shamarranii naannolee guddattootaa fi naannawaa Horsiisee bulaarraa Saayinsii Uumamaa fi Hawaasummaan qormaata 600 keessaa fudhataniif qabxiin seensaa 186,

5.Barattoota dhiiraa qaroo dhabeeyyii Saayinsii Hawaasummaan qormaata 500 keessaa fudhataniif qabxiin seensaa 160,

6.Barattoota Shamarranii qaroo dhabeeyyii Saayinsii Hawaasummaan qormaata 500 keessaa fudhataniif qabxiin seensaa 155.

Basic Important terms of Physics

✅ Distance is the actual path that is traveled by a moving body.
✅ Position is the location of an object compared to a reference frame (point)
✅ Displacement is the difference between the initial point and final positions of an object.
✅ Speed it's rate of change of distance. It's a scalar quantity with the SI unit of m/s.
✅ Velocity it's rate of change of displacement. it's a vector quantity with the SI unit of m/s.
✅ Average Speed it's the ratio of total distance traveled and total time taken.
✅ Average Velocity it's the ratio of of change in displacement and change in time.
✅ Acceleration is the rate of change of velocity. It's a vector quantity, with the SI unit of m/s².
✅ An object is said to accelerate when its velocity changes in magnitude, in direction, or both in magnitude and direction.
✅ Acceleration:The rate at which an object speeds up.
✅Deceleration: The rate at which an object slows down.
Note:
✔If velocity and acceleration have the same sign whether positive or negative its speeding up.
✔ If the velocity and acceleration have opposite sign, then the object is slowing down.

Example of Newton's First law

Grade 12th Physics Short notes from Unit One and we prepared Questions with Answers. Share,forward, invite your friends to get more.
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Chercher secondary school student when he take Award from Oromia Education Bureau head office.
Congratulation Gashaw Shambel Wadajo❕