Kinematics Equations
Equations 1 and 2
Equations 3, 4, and 5
Kinematics Equations
In-class Practice
• Worksheet: 1-Isolate-Variables
Example 1
Example 2
Example 3
Example 4
Video: Investigating Motion, Forces,
and Energy
• Coasting Through Physics (7:38)
Homework: Day 6
• Pg 39: #2-6
• Pg 55: #59
• Worksheet: 2-Kinematics-Equations # 1-8
Activity: Day 7
• Fundamentals of Physics: Measure
acceleration down the ramp
Homework: Day 7
• Handout: Fundamentals of Physics -Measure
acceleration down the ramp
Example: Catch-up Problem
Example 1: Catch-up Problem contd.
Example 1: Catch-up Problem contd.
Example 1: Catch-up Problem contd.
Homework: Day 8
• Worksheet: 3-Catchup-Problems # 1-4
Acceleration due to Gravity near Earth
• A diver using a 3-m
high board enters
the water at a speed
of about 28 km/h.
• From the 10-m high
board, on the other
hand, the speed is
about 50 km/h.
Acceleration due to Gravity near Earth
• The farther an object falls toward Earth’s
surface, the faster its landing speed becomes,
as long as air resistance remains negligible.
• The acceleration of an object falling vertically
toward Earth’s surface is called the
acceleration due to gravity.
Galileo’s Experiments: Falling Objects
• Galileo’s Experiments: Falling Objects
http://www.pbs.org/wgbh/nova/physics/galileoexperiments.html
• Veritasium: Misconceptions about Falling Objects:
http://www.youtube.com/watch?v=aRhkQTQxm4
w
• If the air resistance is negligible, the acceleration
due to gravity at a particular location is constant,
and all dropped objects accelerate downward at
the same rate.
Free Fall
• An object falling toward Earth with no other force
acting on it than gravity experiences free fall.
• The average acceleration due to gravity at Earth’s
surface is g 9.8 m/s2 [down].
The skydiver who
exits a flying aircraft
experiences free fall
for a short time.
Terminal Speed
• However, as the diver’s
speed increases, so does
the air resistance.
• Eventually this resistance
becomes so great that it
prevents any further
acceleration.
• At this stage, the
acceleration is zero and
the diver has reached a
constant terminal speed.
Terminal Speeds of Objects Falling in Air
Gizmo: Free Fall Laboratory
• GIZMO:
http://www.explorelearning.com/index.cfm?
method=cResource.dspView&ResourceID=387
&ClassID=1944382
• Video: Mythbusters – Terminal Speed (Penny
Drop)
Video
• Veritasium: Why are Astronauts Weightless
http://www.youtube.com/watch?v=iQOHRKKNNLQ
• Veritasium: Is there Gravity in Space?:
http://www.youtube.com/watch?v=d57C2drB_wc
Video: When is a Bungee Jumper’s
Acceleration Max?
• Video 1: When is a Bungee Jumper’s Acceleration Max?
http://www.youtube.com/watch?v=FhmLBxyX8Dw
• Video 2: Option A – Acceleration of a Bungee Jump
http://www.youtube.com/watch?v=exG4aGlCmEE
• Video 3: Option B – Acceleration of a Bungee Jump
http://www.youtube.com/watch?v=EyT3Yukdlu4
• Video 4: Option C – Acceleration of a Bungee Jump
http://www.youtube.com/watch?v=KI5CUGQET5I
• Video 5: Option D – Acceleration of a Bungee Jump
http://www.youtube.com/watch?v=vKsof8ax_Ns
Example 1
Example 1 contd.
Example 2
Example 2 contd.
Example 3
Homework: Day 9
• Pg 43 #3-7
• Superman Q (old text)
• Worksheet : 5-Kinematics-Equations-1D-Part2
Lab: Day 10
• Reaction Time and Braking Distance: Handout