Unit 4 AKS 8a Notes - Distance-Time Graphs & Acceleration PDF

Distance -time graphs AKS 8a Notes  SPEED VELOCITY  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs Speed graph a...

Distance -time graphs AKS 8a Notes  SPEED VELOCITY  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs  Speed graphs: Distance and time graphs Speed graph analysis (distance-time graphs) Acceleration graphs: Velocity vs. time graphs This is a acceleration graph because it shows a change in speed over time (a = s/t). ○ The slope of the line on the graph will equal the acceleration. SLOPE = acceleration (higher slope = higher acceleration) S t On your paper, label graph axes as shown What type of graph is this? S Explain why. t What would a graph showing an object moving at a constant acceleration look like? Try to draw it. S t  Constant acceleration S t Now, on the same graph, use a dashed line to show a second object with a SLOWER constant acceleration. 2 constant speeds, S one faster, one slower t Try drawing an acceleration graph that shows an object where the acceleration increases. S t Try drawing an acceleration graph that shows an object where the acceleration decreases. S t Try drawing an acceleration graph that shows an object that has constant deceleration. S t Try drawing an acceleration graph that shows an object where the deceleration decreases. S t Try drawing a acceleration graph that shows an object where the deceleration increases. S t Try drawing an acceleration graph that shows no acceleration. S t Try drawing an acceleration graph that shows an object that travels at a constant acceleration, then acceleration decreases, then has no acceleration? S t  accelerates slower no acceleration constant acceleration S t  Find the acceleration/slope for A A Speed m/min B  Find the acceleration/slope for A Y2 = 2400m/min A Speed m/min 2400m/min - 0m/min 15min - 0min = B 2400m/min 15min = 160m/min/min X2 = 15min Y1 = 0m/min X1 = 0min  Find the acceleration/slope for B A Speed m/min 400m/min - 0m/min 20min - 0min = 400m/min B 20min = 20m/min/min Y2 = 400m/min Y1 = 0m/min X1 = 0min X2 = 20min  All the accelerations A Speed m/min B  Big Ideas: Acceleration Acceleration is the rate at which velocity changes The slope on a speed vs. time graph represents ACCELERATION. A flat line on a speed vs. time graph means you are not accelerating. (Moving at a constant speed)