• Distance (scalar quantity)
• Displacement (vector quantity)
How direction impacts displacement but not distance
• Compare paths with same distance but different displacements
• Practice problems on calculating displacement
Displacement = Final position - Initial position
• Speed (scalar) vs. Velocity (vector)
• Acceleration (change in velocity over time)
• Speed = d / t
• Velocity = Δx / Δt
• Acceleration = Δv / Δt
• Distance-Time Graphs: Slope = Speed
• Velocity-Time Graphs: Slope = Acceleration, Area under curve = Displacement
• Interpreting graphs
• Solving for unknowns using graphs
• Momentum (p) = m × v (mass × velocity)
• Conservation of Momentum: Total momentum before = Total momentum after collision
• Elastic: Kinetic energy is conserved
• Inelastic: Objects stick together
Calculate momentum in collisions and explosions
m₁v₁ + m₂v₂ = m₁v₁' + m₂v₂'
Objects stay at rest or move with constant velocity unless acted upon by a net external force
F = ma (Force = mass × acceleration)
F = Δp / Δt (Force = change in momentum over time)
• Solving problems with forces and motion
• Applying the law to sports (e.g., baseball bat hitting a ball)
1. Practice Problems: Focus on questions from class.
2. Review Graphs: Be comfortable interpreting and drawing graphs.
3. Flashcards for Key Terms: Reinforce key vocabulary.
4. Equations:
• Distance, speed, velocity, and acceleration
• Momentum and conservation equations
• Newton’s laws