Free Grade 3 Vector Notation in Context Essentials in Examinations Flashcards
Free Grade 3 flashcards for Vector Notation in Context Essentials in Examinations: 12 real questions with a full answer key and worked solutions. A vector has size and direction. Add vectors component by component; multiply by a number to scale. Magnitude = √(x² + y²).
Free
Higher
25 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain vector notation in context essentials in examinations
Explain vector notation in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate vector notation in context essentials in examinations
Calculate vector notation in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare vector notation in context essentials in examinations
Compare vector notation in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify vector notation in context essentials in examinations
Justify vector notation in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Vector Notation in Context Essentials in Examinations works
A vector has size and direction. Add vectors component by component; multiply by a number to scale. Magnitude = √(x² + y²).
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.a = (-3, 6), b = (3, 6). Find a + 2b.[1]
- 2.a = (1, 3), b = (-5, 5). Find a + 3b.[1]
- 3.a = (2, 3), b = (2, -5). Find a + 3b.[1]
- 4.a = (1, 0), b = (-1, -1). Find a + 3b.[1]
- 5.a = (2, -1), b = (5, -3). Find a + 4b.[2]
- 6.a = (-1, 5), b = (3, -4). Find a + 2b.[2]
- 7.a = (3, 1), b = (-4, -1). Find a + 4b.[2]
- 8.a = (-6, -5), b = (-6, 2). Find a + 2b.[2]
- 9.Find the magnitude of (-2, 6) to 2 d.p.[3]
- 10.Find the magnitude of (6, -4) to 2 d.p.[3]
- 11.Find the magnitude of (6, 2) to 2 d.p.[3]
- 12.Find the magnitude of (-6, -2) to 2 d.p.[3]
Show answers and working
1. (3, 18)
2b = (6, 12). Add components: (-3 + 6, 6 + 12).
2. (-14, 18)
3b = (-15, 15). Add components: (1 + -15, 3 + 15).
3. (8, -12)
3b = (6, -15). Add components: (2 + 6, 3 + -15).
4. (-2, -3)
3b = (-3, -3). Add components: (1 + -3, 0 + -3).
5. (22, -13)
4b = (20, -12). Add components: (2 + 20, -1 + -12).
6. (5, -3)
2b = (6, -8). Add components: (-1 + 6, 5 + -8).
7. (-13, -3)
4b = (-16, -4). Add components: (3 + -16, 1 + -4).
8. (-18, -1)
2b = (-12, 4). Add components: (-6 + -12, -5 + 4).
9. 6.32
|v| = √(x² + y²) = √(4 + 36). = 6.32.
10. 7.21
|v| = √(x² + y²) = √(36 + 16). = 7.21.
11. 6.32
|v| = √(x² + y²) = √(36 + 4). = 6.32.
12. 6.32
|v| = √(x² + y²) = √(36 + 4). = 6.32.
Worked examples
a = (4, 0), b = (-2, 2). Find a + 3b.
- 3b = (-6, 6).
- Add components: (4 + -6, 0 + 6).
- Answer: (-2, 6)
a = (-6, 4), b = (-5, -2). Find a + 4b.
- 4b = (-20, -8).
- Add components: (-6 + -20, 4 + -8).
- Answer: (-26, -4)
Find the magnitude of (0, -5) to 2 d.p.
- |v| = √(x² + y²) = √(0 + 25).
- = 5.
- Answer: 5
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Adds x of one vector to y of the other.
Correction: Add x with x, y with y.
Forgets that a negative component means the opposite direction.
Correction: Draw the vector to check.
Teacher tips
- · Draw vectors on squared paper end to end.
Parent tips
- · Give directions as '3 steps right, 2 steps up'.
Real-life applications
- · Navigation, forces in physics, game movement.
Assessment objectives
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Frequently asked
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- What should a learner already know before this?
- Start with Working with Vector Notation in Context Essentials, Rules and Methods in Vector Notation in Context Essentials, Working with Vector Notation. Each one has its own free lesson, worksheet and quiz.
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- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Vector Notation in Context Essentials in Examinations?
- Move on to Vector Notation in Context Techniques, Vector Notation in Context Word Problems, Vector Notation in Context Common Errors, which build directly on this idea.
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