What are the topics in Chapter motion class 9?

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  • Motion.
  • Distance and Displacement.
  • Speed and Velocity.
  • Acceleration.
  • Graphical Representation of Motion.

What is motion class 9th physics?

Motion is a change in position of an object over time. Motion is described in terms of displacement, distance, velocity, acceleration, time and speed.

How do we fall ill notes?

Immediate cause: The organisms that enter our body and causes disease is called immediate cause. For example, virus, bacteria, protozoa etc. surroundings, contaminated food, improper nourishment, poverty, poor standard of living etc. Diseases may be due to infectious and non-infectious causes.

What is motion short note?

motion, in physics, change with time of the position or orientation of a body.

What is the unit of motion?

The SI unit of velocity is m/s.

What are the types of motion?

According to the nature of the movement, motion is classified into three types as follows: Linear Motion. Rotary Motion. Oscillatory Motion.

What is disease Class 9?

What is Disease? “A disease is a condition that deteriorates the normal functioning of the cells, tissues, and organs.” Diseases are often thought of as medical conditions that are characterized by their signs and symptoms.

What are the causes of disease?

  • Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
  • Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
  • Fungi.
  • Parasites.

What does disease look like?

Note: Disease can be viewed by examining symptoms of disease. The common symptoms of diseases include headache, fever, vomiting etc. Like jaundice can be examined by pale skin. Diarrhoea can be examined by loose motions.

What is the formula for displacement?

Displacement Formula Displacement = Final position – initial position = change in position.

What is the simplest type of motion?

  • The motion in a straight line is the most basic sort of motion.
  • The distance and displacement are the quantities required to calculate the object’s position in relation to its initial position.
  • Thus, we can say straight-line motion is the simplest type of motion.
  • It is a linear motion.

What is the importance of motion?

Motion strengthens your muscles to better support your body. It also provides movement to your joints and strengthens your bones. In addition, motion provides a release of hormones that makes you feel good, so it positively affects your mental health.

What is the 4 types of motion?

  • linear.
  • rotary.
  • reciprocating.
  • oscillating.

What are the 7 types of motion?

  • Oscillatory Motion.
  • Rotational Motion.
  • Translational Motion.
  • Periodic Motion.
  • Circular Motion.
  • Linear Motion.
  • Uniform Motion.
  • Non-Uniform Motion.

What is the first law of motion?

1. Newton’s First Law of Motion (Inertia) An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.

What are the 3 laws of inertia?

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

What are the 7 basic SI units?

  • Length – meter (m)
  • Time – second (s)
  • Amount of substance – mole (mole)
  • Electric current – ampere (A)
  • Temperature – kelvin (K)
  • Luminous intensity – candela (cd)
  • Mass – kilogram (kg)

What is SI unit of speed?

The SI unit of speed is given in terms of basic units of distance and time. Thus, the SI unit of speed is metre per second or m/s.

What are the 10 examples of motion?

The examples of motion include: running, cycling, jumping, swimming, eating, drinking, playing, writing, typing, moving cars, throwing ball. The examples of rest include: sleeping, sitting, standing, staring, lying, a fixed clock, bottle kept on a table, a stopped car. Was this answer helpful?

What is motion give example?

Rectilinear Rectilinear motion, also known as linear motion, is said to be present if the object or the particle moves along a straight line. In other words, rectilinear motion is also known as straight-line motion. For example, children sliding down a slide, an apple falling from a tree, etc.

What are the types of force?

  • Gravitational force.
  • Electric force.
  • Magnetic force.
  • Nuclear force.
  • Frictional force.

What are the 4 types of diseases?

There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic diseases and non-genetic hereditary diseases), and physiological diseases.

What is a level 4 disease?

Biohazard Level 4 usually includes dangerous viruses like Ebola, Marburg virus, Lassa fever, Bolivian hemorrhagic fever, and many other hemorrhagic viruses found in the tropics.

What are the 20 common diseases?

  • Diabetes.
  • Depression.
  • Anxiety.
  • Hemorrhoid.
  • Yeast infection.
  • Lupus.
  • Shingles.
  • Psoriasis.

What is a human disease?

human disease, an impairment of the normal state of a human being that interrupts or modifies its vital functions. human disease.

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