AQA · Physics · 8463
GCSE Physics: Contact and non-contact forces
Forces · AQA GCSE Physics (8463), specification point 4.5.1.2. Cards are generated from the exam board's own specification for "Contact and non-contact forces", and every card links back to the page it came from. Specification © AQA — used with attribution.
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Define a force.
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A push or pull that acts on an object due to its interaction with another object.
What is a contact force?
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A force between objects that are physically touching.
What is a non-contact force?
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A force between objects that are physically separated (not touching).
Is friction a contact or non-contact force?
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A contact force — the surfaces must be touching.
Is air resistance a contact or non-contact force?
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A contact force — the object is in physical contact with air particles.
Is tension a contact or non-contact force?
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A contact force.
Is normal contact force a contact or non-contact force?
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A contact force — it acts where two surfaces touch.
Is gravitational force a contact or non-contact force?
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A non-contact force — it acts between objects that are physically separated.
Is electrostatic force a contact or non-contact force?
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A non-contact force.
Is magnetic force a contact or non-contact force?
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A non-contact force.
Force is a ? quantity because it has both magnitude and direction.
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vector
How are forces represented on diagrams?
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As vectors — arrows whose length shows magnitude and whose direction shows the direction of the force.
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