Dynamics written questions
Write G3 Pure / O-Level answers on force diagrams and Newton’s laws, checking dynamics calculations and explanations with marking guidance.
Learning goals
- Distinguish contact forces from non-contact forces
- State that mass measures the amount of matter in a body
- Describe a gravitational field as a region where a mass experiences gravitational force
- Define gravitational field strength as gravitational force per unit mass
- Apply weight = mass × gravitational field strength
- Distinguish mass from weight
- Describe the effect of balanced and unbalanced forces on a body
- Describe ways a force may change motion
- Identify action–reaction pairs on interacting bodies
- Draw free-body diagrams for force systems in at most two dimensions
- Solve three-force static equilibrium graphically
- Apply resultant force = mass × acceleration
- Relate mass to resistance to change in motion
- Explain the effects of friction on motion
- Describe falling with and without air resistance, including terminal velocity
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Practise
Practise questions on the skills you are learning. This is for practice only and doesn’t count towards your course progress.
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- About 10 minutes.
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Beyond the syllabus: optional enrichment that does not count towards your progress.