# Unit 1 - Kinematics

Position-time and velocity-time graphs - Ryland

Constant acceleration on velocity-time and position-time graphs (3.1, 3.2) - Nicole

Equations of motion for constant acceleration (3.1, 3.2, 3.3) - Tyler

Acceleration of gravity (3.4) - Ana

Kinematics in Two Dimensions

Vectors (4.1, 4.2) - Elijah

Relative Motion (4.3) - Sophia

Projectile Motion (4.4) - Parker

## Distance vs displacement

You should know :

• The difference between distance and displacement

Distance is the total length traveled

Displacement is the change in position ( Δx = xf - xi )

• The difference between speed and velocity

speed is distance over time

velocity is speed with direction

Distance vs Displacement Video Resources

Speed vs Velocity Video Resources

Selected problems from Pearson Physics:

Page 66, problems 52-57

Page 67, problems 69-73

## Equations of motion for zero acceleration

You should know how to:

• Describe position as a function of time
• Calculate motion for zero acceleration

Selected problems from Pearson Physics:

Page 69, problems 92-100

Video Resources:

Video Resources:

## Vectors

You should be able to:

• Recognize directions of vectors
• Describe forces and motion as vectors
• Add positive and negative vectors in 2 dimensions, using the “tip to tail” method
• Use trigonometry to find the magnitude of a vector, given an angle

Selected problems from Pearson Physics:

Page 145, problems 57, 60, 68, 70, 73, 75, 78, 84

## Projectile motion

You should be able to:

• Split velocity into horizontal and vertical components
• Apply appropriate kinematic equations to horizontal and vertical motion

Video Resources for Projectile Motion:

Selected problems from Pearson Physics:

Page 140, problems 47, 48, 50

Page 146, problems 82, 83, 85-89