Question # 1

Complete equation fy/fx =

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Sin𝜽

Cos 𝜽

Tan𝜽

Cos ec𝜽

Perpendicular / Hypotenuse is called :

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Cos 𝜽

Sin 𝜽

Tan 𝜽

Tan^-1 𝜽

A body is in neutral equilibrium when its centre of gravity:

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Is at its highest position

Is at the lowest position

Keep its height if displaced

Is situated at its bottom

A couple is formed by

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Two forces perpendicular to each other

Two like parallel forces

Two equal and opposite forces in the same line

Two equal and opposite forces not in the same line

Cos 0^ois

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0

2

1

0.5

The number of forces that can be added by head to tail rule are

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2

3

4

Any Number

Cos 0°=

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0.5

1

0.866

0

F_x= 4 N and F_y=3N what is F?

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5N

1.5 N

16 N

9 N

A couple consists of which type of forces :

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Like parallel

Unlike parallel

Not parallel

Nil

Resultant vector can be found by:

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θ=tan^-1 Fy/ Fx

θ=tan[Fy/ Fx ]

θ=tan^-1[ Fy/ Fj ]

None of these

A line about which a body rotates is called;

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Axis of rotation

Rigid Body

Center of gracity

None of these

The centre of gravity of irregular shaped body can be found with the help of:

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Wedge

Meter rod

Plumb line

Screw gauge

The method used for addition of non-parallel forces is.

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Algebraic

Head to trail rule

Mathematical

Nil

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Physics 9th Class English Medium Unit 4 Online Test MCQs With Answers

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