text: # Physics - Mechanics
  
  ?
  
  ## Mechanics - Kinematics 2.1.1
  
  • Displacement - Distance travelled in a particular direction.
  • Velocity - Distance travelled in a certain direction in 1 second.
  • Speed - Distance travelled in 1 second.
  • Acceleration - The change in velocity in 1 second.
  1 of 5
  
  ## Mechanics - Kinematics 2.1.2
  
  • Instantaneous values of speed, velocity and acceleration is the value at a single moment in time, not over a period of time. Average values of all three are the average values of the speed/velocity/acceleration over a certain period of time, not just a single moment.
  
  • Average velocity is the difference between the beginning and the end.
  e.g. distance = 16km, journey time = 4 hours
  average velocity = 16/4
  = 4 km h^-1
  • Average velocity = displacement/time
  
  • Average speed = distance/time
  
  • Average acceleration = change in velocity/change in time
  unit of acceleration is m s^-2
  Acceleration is a vector quantity
  2 of 5
  
  ## Mechanics - Kinematics 2.1.3
  
  • The equations of uniformly accelerated motion can only be under conditions where the acceleration is constant.
  • SUVAT used for uniformly accelerated motion:
  • v = u + at
  • s = (u + v/2) t
  • v^2 = u^2 + 2as
  • s = ut + 1/2at^2
  • s = vt - 1/2at^2
  3 of 5
  
  ## Mechanics - Kinematics 2.1.6
  
  • Air resistance eventually affects all objects that are in motion. Due to the effect of air resistance objects can reach terminal velocity. This is a point by which the velocity remains constant and acceleration is zero.
  • In the absence of air resistance all objects have the same acceleration irrespective of its mass.
  4 of 5
  
  ## Physics
  
  • Instantaneous velocity is how fast it’s going at that moment in time and in which direction.
  • Average velocity is the difference between the beginning and the end.
  e.g. distance = 16km, journey time = 4 hours
  average velocity = 16/4
  = 4 km h^-1
  • average velocity = displacement/time
  • Instantaneous velocity = length/time for object to pass
  • Acceleration = change of velocity/time
  unit of acceleration is m s^-2
  Acceleration is a vector quantity
  5 of 5
  
  ## Comments
  
  No comments have yet been made
  
  ## Similar Physics resources:
  
  See all Physics resources »See all Motion resources »
explanation: The document is a set of notes on physics, specifically focusing on mechanics and kinematics. It covers definitions and explanations of key concepts such as displacement, velocity, speed, acceleration, and the equations of uniformly accelerated motion (SUVAT). It also includes examples and units for various physical quantities. The document does not contain a specific question or a question and answer format.
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distilabel_metadata.role: system
distilabel_metadata.content: # Physics - Mechanics
  
  ?
  
  ## Mechanics - Kinematics 2.1.1
  
  • Displacement - Distance travelled in a particular direction.
  • Velocity - Distance travelled in a certain direction in 1 second.
  • Speed - Distance travelled in 1 second.
  • Acceleration - The change in velocity in 1 second.
  1 of 5
  
  ## Mechanics - Kinematics 2.1.2
  
  • Instantaneous values of speed, velocity and acceleration is the value at a single moment in time, not over a period of time. Average values of all three are the average values of the speed/velocity/acceleration over a certain period of time, not just a single moment.
  
  • Average velocity is the difference between the beginning and the end.
  e.g. distance = 16km, journey time = 4 hours
  average velocity = 16/4
  = 4 km h^-1
  • Average velocity = displacement/time
  
  • Average speed = distance/time
  
  • Average acceleration = change in velocity/change in time
  unit of acceleration is m s^-2
  Acceleration is a vector quantity
  2 of 5
  
  ## Mechanics - Kinematics 2.1.3
  
  • The equations of uniformly accelerated motion can only be under conditions where the acceleration is constant.
  • SUVAT used for uniformly accelerated motion:
  • v = u + at
  • s = (u + v/2) t
  • v^2 = u^2 + 2as
  • s = ut + 1/2at^2
  • s = vt - 1/2at^2
  3 of 5
  
  ## Mechanics - Kinematics 2.1.6
  
  • Air resistance eventually affects all objects that are in motion. Due to the effect of air resistance objects can reach terminal velocity. This is a point by which the velocity remains constant and acceleration is zero.
  • In the absence of air resistance all objects have the same acceleration irrespective of its mass.
  4 of 5
  
  ## Physics
  
  • Instantaneous velocity is how fast it’s going at that moment in time and in which direction.
  • Average velocity is the difference between the beginning and the end.
  e.g. distance = 16km, journey time = 4 hours
  average velocity = 16/4
  = 4 km h^-1
  • average velocity = displacement/time
  • Instantaneous velocity = length/time for object to pass
  • Acceleration = change of velocity/time
  unit of acceleration is m s^-2
  Acceleration is a vector quantity
  5 of 5
  
  ## Comments
  
  No comments have yet been made
  
  ## Similar Physics resources:
  
  See all Physics resources »See all Motion resources »
distilabel_metadata.role: user
distilabel_metadata.raw_output_q_a_detector_0: The document is a set of notes on physics, specifically focusing on mechanics and kinematics. It covers definitions and explanations of key concepts such as displacement, velocity, speed, acceleration, and the equations of uniformly accelerated motion (SUVAT). It also includes examples and units for various physical quantities. The document does not contain a specific question or a question and answer format.
  
  Label: no-question