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OCR GCSE Physics B (J259) — Explaining motion

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: $w e i g h t (N) = m a s s (k g) \times g r a v i t a t i o n a l f i e l d s t r e n g t h (N /$

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Forces

23 key terms

Practise with Past Papers Key Terms & Definitions

Previous Section: Electric circuitsElectric generators Next Topic: Describing motionDescribing motion

w e i g h t (N) = ma ss (k g) \times g r a v i t a t i o na l f i e l d s t r e n g t h (N / k g)