Contact & Non-Contact Forces — GCSE Physics Revision
Revise Contact & Non-Contact Forces for GCSE Physics. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP.
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Go to Weight & MassWhat is Contact & Non-Contact Forces?
A force is a push or a pull that can cause an object to accelerate, change shape, or change direction. Forces can be categorised as either contact forces or non-contact forces. Contact forces act when objects are physically touching (e.g., friction, air resistance, tension). Non-contact forces can act at a distance without the objects touching (e.g., gravity, electrostatic force, magnetic force).
Board notes: Covered by all major boards (AQA, Edexcel, OCR). Being able to identify and name forces is a key skill.
Step-by-step explanationWorked example
A book is resting on a table. Identify the main contact and non-contact forces acting on it. Solution: The main non-contact force is the Earth's gravitational pull acting downwards (its weight). The main contact force is the normal reaction force from the table pushing upwards on the book, preventing it from falling through.
Mini lesson for Contact & Non-Contact Forces
1. Understand the core idea
A force is a push or a pull that can cause an object to accelerate, change shape, or change direction. Forces can be categorised as either contact forces or non-contact forces.
Can you explain Contact & Non-Contact Forces without copying the notes?
2. Turn it into marks
A book is resting on a table. Identify the main contact and non-contact forces acting on it.
Underline the method, evidence, or command-word move that would earn credit in GCSE Forces.
3. Fix the likely mark leak
Watch for this mistake: Forgetting that forces always come in pairs (Newton's Third Law). For every action, there is an equal and opposite reaction.
Write one correction rule before doing another practice question.
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Jump into adaptive, exam-style questions for Contact & Non-Contact Forces. Free to start; sign in to save progress.
Contact & Non-Contact Forces practice questions
These are original StudyVector questions for revision practice. They are not official exam-board questions.
Question 1
In one GCSE sentence, explain what Contact & Non-Contact Forces is testing.
Answer: A force is a push or a pull that can cause an object to accelerate, change shape, or change direction. Forces can be categorised as either contact forces or non-contact forces.
Mark focus: Precise definition and topic focus.
Question 2
A Contact & Non-Contact Forces question uses an unfamiliar context. What should the answer do before adding detail?
Answer: It should name the process, variable, equation, particle model, or evidence being tested, then explain the result using precise scientific vocabulary.
Mark focus: Method selection and command-word control.
Question 3
A student makes this mistake: "Forgetting that forces always come in pairs (Newton's Third Law). For every action, there is an equal and opposite reaction." What should their next repair task be?
Answer: Do one Contact & Non-Contact Forces question and review the mistake type.
Mark focus: Error correction and next-step practice.
Contact & Non-Contact Forces flashcards
Core idea
What is the main idea in Contact & Non-Contact Forces?
A force is a push or a pull that can cause an object to accelerate, change shape, or change direction. Forces can be categorised as either contact forces or non-contact forces.
Common mistake
What mistake should you avoid in Contact & Non-Contact Forces?
Forgetting that forces always come in pairs (Newton's Third Law). For every action, there is an equal and opposite reaction.
Practice
What is one useful practice task for Contact & Non-Contact Forces?
Answer one Contact & Non-Contact Forces question and review the mistake type.
Exam board
How should you use board notes for Contact & Non-Contact Forces?
Covered by all major boards (AQA, Edexcel, OCR). Being able to identify and name forces is a key skill.
Common mistakes
- 1Forgetting that forces always come in pairs (Newton's Third Law). For every action, there is an equal and opposite reaction.
- 2Incorrectly identifying a force as contact or non-contact. For example, thinking that the magnetic force requires the magnets to be touching.
- 3Thinking that an object with no net force on it must be stationary. It could be moving at a constant velocity (Newton's First Law).
Contact & Non-Contact Forces exam questions
Exam-style questions for Contact & Non-Contact Forces with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP specifications.
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Step-by-step method
Step-by-step explanation
4 steps · Worked method for Contact & Non-Contact Forces
Core concept
A force is a push or a pull that can cause an object to accelerate, change shape, or change direction. Forces can be categorised as either contact forces or non-contact forces. Contact forces act when…
Frequently asked questions
What is a non-contact force?
A non-contact force is a force that acts on an object without coming physically in contact with it. Examples include gravity, magnetism, and electrostatic forces.
Is friction a contact or non-contact force?
Friction is a contact force. It arises when two surfaces rub against each other, opposing motion.