Week 3 Term 2 2025 - Momentum and Impulse

 Homework

Kinematics

• Act 8B Graphs of motion p.101
• Act 8C Kinematics p.102
• Ex 4E Kinematics p.115-117

Projectile Motion

• Act 12B Projectile Motion p.140-141
• Ex 4F Projectile Motion p.119-124

Vectors

• Act 9A Vectors p.108-109
• Ex 4A Vectors p.90-94

Forces

• Act 10A Forces p.117-118
• Act 10B Forces p.123-124
• Ex 4B Forces p.97-104

Graphing Exercises (do these on the spreadsheet)

• Ex 2B, p.16-18 Level 2 Graphing
• Ex 2C, p.19-25 Level 2 Identifying Relationships and Experimental Equations
• Ex 2B, p.23-40 Level 3 Handout booklet on Graphing Errors

Energy

• Act 14B, p. 158-160 Combined Mechanics
• Ex 4J, p. 143-147 Energy, Work, Power

Circular Motiuon

• Act 13A p.148-149 Circular Motion
• Ex 4H p.132-134 Circular Motion

Springs

• Act 14A p.155 Energy & Springs
• Ex 4I p.137-141 Springs

Momentum & Impulse

• Act 11A, p.130 Momentum and Impulse
• Act 11B, p. 133-134 Collisions
• Ex 4D, p.108-112 Momentum P = mv
• Ex 4C, p.105-107 Impulse ΔP = FΔt

Momentum

Conservation of Momentum

In the absence of external forces the total momentum of a system is always conserved

Impulse

The change in Momentum for a single object

ΔP = Pf - Pi

&

ΔP = FΔt

&

ΔP = mΔv

• The unis are eithor Ns or kgms-1 , this is the same unit and the one that is used depends on the context
• Impulse on one object is always equal and opposite to the impulse on the other onject - Newton's Third Law

Physics of Car Crashes (Impulse)

Momentum and Impulse Explained

What Is Conservation of Momentum?

Impulse

Impulse

Impulse examples///Homemade Science with Bruce Yeany

Momentum

Impulse

Momentum does NOT require Mass!!