9th Class MCQs Physics Chapter No.4 Turning Effect of Forces

States of Equilibrium are: DGK G2 2014

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

The center of gravity of round plate lies at ________

According to second condition of equilibrium must be zero: BWP G2 2014

What is the value ofsin0^°?

F=10N is making an angle 90^° with x-axis then its x-components is________________.

How many states of equilibrium are there?

The perpendicular distance between the line of action of force and the axis of rotation is known as

The number of perpendicular components of a force are:

Where does the centre of gravity of a uniform rod lie?

A body is in equilibrium when its:

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

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

The centre of gravity of uniform ________ sheet is the point of intersection of its diagonals. MTN Gl 2014

Which of the following is the magnitude of the vector F?

The direction of torque can be found by______________.

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

Centre of gravity is a point where the whole ______ of the body act

The direction of the resultant vector can be found by______________

The direction of Resultant. vector can be found by θ = ________ BWP G2 2014

if the directions of the parallel forces are opposite to one another, then these are called:

It is a vector quantity.

Two equal but unlike parallel forces having different line of action produce

If the direction of the parallel forces is the same, then these are called:

Racing cars are made stable by:

The number of perpendicular components of a forces:

In a right angle triangle length of base is 4cm and perpendicular is 3cm, then its Cos θ is equal to: DGK G2 2014

If a Force of 10 N is making an angle of 30^° with x-axis then its horizontal component will be: DGK Gl, FSD G2 2014

The ratio of perpendicular and base is

Complete equation F_y /F_x = ___________________ GUJ Gl 2014

What is the unit of torque in SI?

On what does torque depend?

A body is in equilibrium when its: SGD G2 2014

If F_y = 4N and F_x = 3N what is magnitude of resultant force: LHR Gl 2014

Racing cars are made stable by:

A couple is formed by

The centre of gravity of a triangle is at: RWP G2 2014

In resolution of vectors, the vector is resolved only in

A force of 10 N is making an angle of 300 with the horizontal. Its horizontal component will be:

cos 60^° = ______________SGD Gl 2014

The direction of force F with x-axis is given by: SGD Gl 2014

Turning effect of a force is called:

Where does the centre of gravity of a cylinder lie?

A body is in neutral equilibrium when its center of gravity: RWP G, FSD GI 2014

The number of perpendicular components of a force is: FSD G2,GUJ G2 2014

What is the value of cos0^°?

A couple is formed by:

Centre of gravity of sphere is at: LHR G2 2014

Racing cars are made stable by: MTN Gl, BWP Gl, FSD Gl, DGK Gl, GUJ Gl 2014

A body is in Equilibrium when its:

Newton's first law of motion is valid only in the absence of: LHR Gl 2014

Trigonometry is the branch of _______.

Mass is a _______quantity.

A force of 10N is making an angle of 30^° with the horizontal. Its horizontal component will be:

First condition of equilibrium is: LHR G2 2014

What is such a state in which on disturbing a body slightly, the body comes back to its original position called?

What is the value of cos45^°?

Sin 45^° is equal to: BWP Gl 2014

If F_y=4N and F_x=3N what is the magnitude of resultant vector.