# physics 2A

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• Created by: 10carterj
• Created on: 08-09-14 09:43
• physics 2A
• velocity and distance-time graphs
• equations
• speed=distance/time
• important notes
• physics 2A
• velocity and distance-time graphs
• equations
• speed=distance/time
• important notes
• flat sections are when its stationary
• straight up or down mean its at a constant speed
• the steeper the faster
• downhill means its going towards the start point
• curves represent acceleration or de-celleration
• acceleration and velocity-time graph
• Equations
• acceleration=change in velocity/time taken
• important notes
• flat sections represent steady speed
• the steeper the graph the greater the acceleration or deceleration
• downhill sections represent deceleration
• the area under any sections of the graph is equal to the distance travelled in the time frame
• the curve means changing acceleration
• forces
• resultant
• real situations there are two forces acting on an object along any direction.
• the overall effect of these forces will decide its movement, acceleration or deceleration or steady speed
• gravitaional
• energy is due to height
• measured in joules
• earths gravitational field strength is about 10 N/Kg
• kinetic energy
• kinetic energy transferred is work done
• energy of movement
• when something falls, it converts potential energy into kinetic
• flat sections are when its stationary
• straight up or down mean its at a constant speed
• the steeper the faster
• downhill means its going towards the start point
• curves represent acceleration or de-celleration
• acceleration and velocity-time graph
• Equations
• acceleration=change in velocity/time taken
• important notes
• flat sections represent steady speed
• the steeper the graph the greater the acceleration or deceleration
• downhill sections represent deceleration
• the area under any sections of the graph is equal to the distance travelled in the time frame
• the curve means changing acceleration
• forces
• resultant
• real situations there are two forces acting on an object along any direction.
• the overall effect of these forces will decide its movement, acceleration or deceleration or steady speed
• gravitaional
• energy is due to height
• measured in joules
• earths gravitational field strength is about 10 N/Kg
• kinetic energy
• kinetic energy transferred is work done
• energy of movement
• when something falls, it converts potential energy into kinetic