Extra TopicsKey Facts

Key Facts

Part of Terminal Velocity · GCSE GCSE Physics revision

This key facts covers Key Facts within Terminal Velocity for GCSE Physics. Revise Terminal Velocity in Extra Topics for GCSE Physics with 13 exam-style questions and 11 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 7 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 7 of 13

Practice

13 questions

Recall

11 flashcards

📋 Key Facts

  • Terminal velocity occurs when drag = weight (resultant force = 0)
  • At terminal velocity, acceleration = 0 — but the object is still moving
  • The gradient of a v-t graph equals acceleration; zero gradient = terminal velocity
  • The area under a v-t graph equals distance travelled
  • Larger surface area → more drag at same speed → lower terminal velocity
  • Greater weight → needs more drag to balance → higher terminal velocity
  • More streamlined shape → less drag → higher terminal velocity
  • Drag is approximately proportional to speed squared — doubling speed roughly quadruples drag
  • Transformers can only step voltage up/down for alternating current (AC), not DC

Keep building this topic

Read this section alongside the surrounding pages in Terminal Velocity. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Terminal Velocity

An object reaches terminal velocity when falling through air. Which statement correctly describes the forces at terminal velocity?

  • A. Weight is greater than drag force
  • B. Drag force is greater than weight
  • C. Weight equals drag force
  • D. There are no forces acting on the object
1 markfoundation

Explain how a skydiver reaches terminal velocity after jumping from a plane. Include changes to forces and acceleration in your answer.

3 marksstandard

Quick Recall Flashcards

What is terminal velocity?
The constant velocity reached when drag force equals weight, so resultant force = 0 and acceleration stops
Why does terminal velocity occur?
As an object speeds up, drag increases. Eventually drag = weight, resultant force = 0, so acceleration stops (F = ma)

13 questions on Terminal Velocity — practise free

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