1.11 Effects of forces
Forces can change an object's speed, direction, shape or momentum, depending on their size, direction and balance during physical interactions.
- Syllabus
- 2024
- Objective
- 1.11
- Level
- —
Exam analysis
Chance of appearing9%of analysed past papers
Latest appearanceJan 2023
Most common paperPaper1PR
Typical marks1–3
Common command terms
- Draw
- Explain
- State
Scoring notes
- Common mistake
- Drawing extra force arrows when the situation requires only the named interacting forces.
Recent exam appearances
Jan 2023Paper2PR [null] · TZ03(a)(i)[ 1 ]1.11 Effects of forces
Jan 2021Paper1PR [null] · TZ07(b)[ 3 ]1.11 Effects of forces
Jan 2021Paper2P [null] · TZ07(b)[ 2 ]1.11 Effects of forces
Practice this objective
Coverage 2021–2023 · Updated 16 Jul 2026
1.11 Effects of forces
Describe the effects of forces between bodies such as changes in speed, shape or direction
Concept essentials
- Unbalanced forces can change an object's speed or direction.
- A force that increases velocity also increases momentum when mass is unchanged.
- Weight acts downwards, while upthrust acts upwards in fluid situations.
- A newton meter measures force in newtons.