Graphical and Algebraic Methods (Grade 11 NSC Matric Physical Sciences): Quizzes

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Graphical and Algebraic Methods
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10 questions from this quiz

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What is the resultant vector?

The single vector with same effect as all

In the tail-to-head method, where does the resultant vector go?

From first tail to last head

What formula finds the magnitude of resultant for perpendicular components?

R=Rx2+Ry2R = \sqrt{R_x^2 + R_y^2}

Which formula finds the direction angle αα of a resultant vector?

tan⁡α=oppositeadjacent\tan α = \frac{\text{opposite}}{\text{adjacent}}

What is the magnitude when Rx=40R_x = 40 N and Ry=30R_y = 30 N?

50 N

A 5 N force right and 2 N force left gives what resultant (right is positive)?

3 N to the right

What is a common mistake in the tail-to-head method?

Wrong placement: tail-to-tail not tail-to-head

If scale is 1 N : 1 cm and you measure 5 cm, what is the actual magnitude?

5 N

Which method is described as more accurate for calculations?

Algebraic methods

What are components of a vector?

Perpendicular parts: horizontal & vertical

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