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Forces — OCR GCSE Physics B J259
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Physics
OCR GCSE Physics B
Explaining motion
Forces
Forces
OCR GCSE Physics B · J259
Forces
What you need to know
Apply Newton’s third law to interaction pairs.
Recall examples of interaction types: gravity, electrostatics, magnetism, and contact forces.
Describe how these interactions involve pairs of objects exerting force on each other.
Represent interaction forces as vectors.
Define weight and describe its measurement.
Apply the weight equation:
w
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(
N
)
=
m
a
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s
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k
g
)
×
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Revision notes
1
Forces
9 key terms
Practise with past papers
Key terms & definitions
Previous section: Electric circuits
Electric generators
Next topic: Describing motion
Describing motion
g
t
h
(
N
/
k
g
)
weight\ (N) = mass\ (kg) \times gravitational\ field\ strength\ (N/kg)
w
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N
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=
ma
ss
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k
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)
×
g
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na
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)
