Motions

Describing and Calculating Motions

Basic Definitions:

Time, Position, Displacement, Velocity and Acceleration

Part 1: Definitions

Professor Dave Explains - 7 min

Part 2: Graphical Analysis

Professor Dave Explains - 7 min

Constant Acceleration in One-Dimensional Motion - Kinematic Equations

Motion in a straight line

Use kinematic equations of motion
Solve problems involving vertical motion under gravity

Note: Tell the difference of motions with constant velocity and constant acceleration.

Advance skills:

Deriving Kinematic Equation from a graph - gradient
Deriving Kinematic Equation from a graph - area
Deriving Kinematic Equation using algebra

Applying Formulae to Solve Problems

List the known quantities, using formula symbols and SI units, and the unknown quantities.
Select the appropriate formula and if needed rearrange it so that the unknown is the subject.
Substitute the values into the formula and calculate the result.
Correct the result to the number of significant figures of the least accurate measurement used.
State the result using the formula symbol and give the unit.

1: Horizontal Motion

Professor Dave Explains - 7 min

2: Vertical Motion

Professor Dave Explains - 7 min

Picture 2

Feynnman

Study Guide - Rotational Dynamics and Rotational Energy.pdf

Rotational Motion

by NotebookLM

QS3-Acid-Base-Neutralization-Reactions-Shedding-Light-on-Acids-and-Bases-Episode-3-Worksheet-to-accompany-YT-video-Lia.pdf

CB1.2 PDF

Study Guide - Rotational Dynamics and Rotational Energy.pdf

Rotational Motion - NotbookLM

Picture 2

Motion Under Gravity

Gravitational Acceleration

BBC - 4:41

ZERO Gi

Veritasium - 7:47

Terminal Velocity and Air Resistance

Next Generation Science (2 min)

MJ's Hangtime

TED-Ed

Vectors and Scalars

Vectors

A vector is a quantity which has both size and direction.
A scalar quantity has just size with no direction

Vector Addition: use the "head to tail" method to get the resultant vector

Vector Subtraction: the negative of a vector is in its opposite direction

Generally, you will use Pythagoras' Theorem to get the magnitude (size) and Trigonometry (sine, cosine and tangent) to get the direction (angle) of the resultant vector.

Components of a Vector

Finding two components of a vector is called resolving a vector into components.
Horizontal (x) component: cosine
Vertical (y) component: sine

Phy2.4 Mechanics - Scalars and Vectors - web1.ppsx

Scalar and Vector Quantities

Cognito (3:09)

Vector and Scalar Quantities?

Free Animated Education (4:22)

Extension: Relative velocity

Relative velocity is the velocity of one object in relation to another object. The velocity of an object may appear to be different depending on where it is measured from (i.e. reference coordinate system).
Relative velocity involves adding and subtracting vectors.

Projectile Motion

Projectile motion

Explain projectile motion
Resolve a projectile’s velocity into components
- The horizontal component is constant velocity
- The vertical component is in constant acceleration motion (free fall).
Use velocity components to solve problems
Make calculations at any point in flight