02 Kinematics

Lecture videos

Kindly refer to the online lecture schedule for this topic here

T1W9:

Lesson 1: notes pg 1 - 13, 44 min (consisting of 6 videos below)

T1W9:

Lesson 2: notes pg 13 - 20, 40 min (consisting of 4 videos + 3 Checkpoint Qns below)

Try the following Checkpoint Questions. Answers are found at the bottom of this sub-page.

T1W10:

Lesson 3: notes pg 21 - 29, 35 min (consisting of 4 videos + 1 Checkpoint Qn below)

Try the following Checkpoint Questions. Answers are found at the bottom of this sub-page.

T1W10:

Lesson 4: notes pg 30 - 34, 18 min (consisting of 2 videos + 2 Checkpoint Qns below)

Try the following Checkpoint Questions. Answers are found at the bottom of this sub-page.

Other useful resources

PhET projectile motion applet

Enhance your understanding of projectile motion by setting a value and direction for the initial velocity and

observe the vertical and horizontal components and resultant vector arrows for velocity and acceleration using "Intro" and "Vectors". What do you notice about the length of arrow (magnitude of vector) and direction of arrow (direction of vector)?
do the calculation for the range and check if you are correct by trying to hit a target using "Lab"

Play with the applets here: https://phet.colorado.edu/sims/html/projectile-motion/latest/projectile-motion_en.html

Human Reaction Ruler (Equations of motion)

How fast is your reaction? How about your friend? Try this mini project at home to practice the use of kinematic equations to calculate your reaction time listed on the "reaction timer template". Use the ruler with your friends and family and see who has the fastest reaction? Is reaction time correlated to age, gender, height, eyesight, amount of sleep for the day, with or without caffine, effect of background noise etc? Conduct your own investigation (linking biology and physics)!

https://www.scienceworld.ca/resource/reaction-time-ruler/

http://www.scienceworld.ca/wp-content/uploads/attachments/resources/ReactionTime.pdf

https://www.bbc.co.uk/bitesize/guides/zpkhcj6/revision/3

https://www.hptinstitute.com/wp-content/uploads/2014/01/Factors-Affecting-Reaction-Time1.pdf

Free fall without air resistance (Experiments on Moon and on Earth)

Will any two objects, e.g. a feather and a ball/hammer fall at the same rate if there is no air resistance?

See this being tested on the moon as well as on Earth in the videos below: