Nano PHYSICS . MECHANICS . DYNAMICS . CIRCULAR MOTION

Sources of Centripetal Force

Identify what provides the inward force: tension, friction, normal-force components, gravity, or a combination of real forces.

Physics · Mechanics · Dynamics · Circular Motion · Sources of Centripetal Force
Access for this nano-lesson
Unsigned visitors can show & copy prompts for Steps 1-3. Signed-in free accounts can also Run with AI for Steps 1-2. Paid accounts unlock everything (Steps 1-6 + Help prompts + AI).
Steps 1-3 Free Steps 4-6 Paid
STEP 1
Orient: find the inward force provider
Free
Establish that the inward net force must come from real interactions.
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Goal: identify real force sources that contribute to inward radial force.
STEP 2
Conceptual grounding: build the circular-motion model
Free
Build a provider-finding workflow for radial free-body diagrams.
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Goal: avoid adding a fake centripetal-force arrow.
STEP 3
Real-world connection: identify radial force and motion
Free
Apply the workflow to strings, flat turns, banked turns, vertical circles, and orbits.
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Goal: explain how different physical situations use different force providers.
STEP 4
Check your understanding: diagnostic mini-quiz
Paid
Attempt each question before revealing the circular-motion reasoning.
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Goal: identify and correct direction, force-source, component, and constant-speed errors before they become algebra errors.
STEP 5
Practice: solve increasingly rich circular-motion situations
Paid
Apply the model to circular-motion scenarios that grow in complexity.
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Goal: produce clear, physically justified circular-motion solutions.