Download presentation

Presentation is loading. Please wait.

Published byLorraine McDaniel Modified over 4 years ago

1
Chapter 3

2
3.1 Acceleration Non-uniform motion – more complex

3
Velocity-Time Graph Useful to make Consistent with position-time graph and motion map Straight line versus curved line Slope of line give acceleration Units m/s/s Rate of change of velocity

4
Graphs and Maps Position-time and velocity-time Motion map x (m) t (s) v (m/s)

5
Acceleration Vector quantity Avg a = v/ t Change in velocity over a time interval is average acceleration Change of velocity in an instant is instantaneous acceleration Found by calculating slope of tangent at specific time on velocity-time graph When would average and instantaneous be the same?

6
Motion maps Show vectors on motion maps

7
Positive versus Negative Assigning coordinate system is important Deceleration is NOT a physics term

8
Kinematic curves How are position-time, velocity-time and acceleration-time graphs connected?

9
3.2 Constant Acceleration v f = v i + a avg t d f = d i + v i t f + ½ a avg t f 2 v f 2 = v i 2 + 2a avg d

10
Graphs Equations can be derived from equations Displacement is area under velocity-time graph

11
3.3 Free Fall Motion of object when air resistance is negligible and action considered due to gravity alone Rock versus feather falling in air on earth On moon? On Jupiter?

12
Acceleration due to Gravity All objects fall at the same rate on earth 9.80 m/s/s What does the motion map for an object falling look like? x-t graph, v-t graph

13
Initial up, then down Motion map x-t graph v-t graph a-t graph

14
Lab Newton’s 2 nd lab Freefall lab, ch 3, pg 76-77

Similar presentations

© 2020 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google