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ForcesHigh Exam FrequencyAQA

Impulse & Collisions

Revise Impulse & Collisions in Forces for GCSE Physics with 13 exam-style questions and 10 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

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1

Why Crumple Zones Save Lives

Introduction2

Understanding Impulse

Key Facts3

Impulse and Force-Time Graphs

Diagram4

Elastic vs Inelastic Collisions

Key Facts

Sample Flashcards

Understanding Impulse
Impulse = Force × time (F × t) — measured in N s
Understanding Impulse
Impulse = Change in momentum (Δp = mΔv) — measured in kg m/s

Sample Questions

Which equation correctly defines impulse?

  • A. impulse = force / time
  • B. impulse = force x time
  • C. impulse = mass x acceleration
  • D. impulse = mass x velocity
1 markfoundation

Explain how an airbag reduces the risk of injury to a driver in a collision.

3 marksstandard

13

exam-style questions

10

revision flashcards

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