Newton laws of motion

• What is the correct spelling of the subject that deals with the laws of motion, forces, and energy?

  Physics
• What are the main topics within Physics that can be studied?

  • Newton's Laws of Motion
  • Electricity and Circuits
  • Waves and Sound
  • Forces and Energy
  • Thermal Physics
  • Optics and Light
  • Atomic Structure
  • Magnetism
• What is Newton's First Law of Motion also known as?

  Law of Inertia
• What does Newton's First Law of Motion state?

  An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
• What happens to objects at rest according to Newton's First Law?

  They tend to stay at rest.
• What happens to objects in motion according to Newton's First Law?

  They tend to stay in motion.
• What is an example of Newton's First Law of Motion?


  A book on a table remains stationary until you apply a force to move it.
• If a football is rolling across a smooth, flat field, what will happen if no external forces act on it according to Newton's First Law?

  It will continue rolling at a constant velocity.
• What does Newton's Second Law of Motion relate to?

  It relates force, mass, and acceleration.
• What is the mathematical expression for Newton's Second Law of Motion?

  $F =$$m \cdot a$
• In the equation $F =$$m \cdot a$, what does F represent?


  Net force (measured in Newtons, N)
• In the equation $F =$$m \cdot a$, what does m represent?


  Mass of the object (measured in kilograms, kg)
• In the equation $F =$$m \cdot a$, what does a represent?


  Acceleration (measured in meters per second squared, m/s²)
• If a force of 10 N is applied to a 2 kg object, what is the object's acceleration?

  $5 \text{ m/s}^2$
• What does Newton's Third Law of Motion state?

  For every action, there is an equal and opposite reaction.
• What are the key points of Newton's Third Law of Motion?

  • Forces always occur in pairs
  • Action and reaction forces are equal in magnitude
  • Action and reaction forces act on different objects
  • These forces act in opposite directions
• What is an example of Newton's Third Law of Motion?


  When you jump off a boat, you push the boat backwards as you move forwards.
• In the context of a rocket launch, how does Newton's Third Law apply?

  The rocket expels gases downward, creating an equal upward force on the rocket.
• How can Newton's Laws of Motion be observed in everyday situations?

  1. First Law (Inertia):

  • A passenger in a car lurches forward when the car suddenly stops
  • Objects on a table slide when a tablecloth is quickly pulled away

  
  

  1. Second Law (F = ma):

  • A heavier object requires more force to accelerate at the same rate as a lighter object
  • A car with a more powerful engine can accelerate faster than one with a less powerful engine

  
  

  1. Third Law (Action-Reaction):

  • A person walking pushes against the ground, and the ground pushes back
  • Recoil felt when firing a gun
• Why does a skydiver stop accelerating after reaching terminal velocity?


  Because the net force acting on them is zero, balancing gravity and air resistance.
• Which of Newton's Laws explains why a skydiver continues moving at a constant velocity when they reach terminal velocity?

  First Law of Motion (Law of Inertia)
• What happens to the net force on a skydiver when they reach terminal velocity?

  The net force becomes zero.
• What does the First Law of Motion imply about an object in motion with no net force acting on it?

  It will continue moving at a constant velocity.
• How do the concepts of force, mass, and acceleration interrelate in Newton's Second Law?

  Acceleration is directly proportional to net force and inversely proportional to mass.