Chapter wise Test for MCQs Physics – 9th Class

1-µs is equal to_________

(Which is Correct Option ?)

• 10^-9 s

• 10^-3 s

• 10^-6 s

• 10^-12 s

Which one of the following unit is not a derived unit?

If the zero of the circular scale is below the horizontal line, then the zero error will be_______

_________can accurately measure up to one tenth of a millimeter.

Least count of Mechanical Stop Watch is ____________

10⁶ Stands for_______

Volume measuring scale has a vertical scale in ________

(Select Correct Option)

• Milo-Liter

• cm³

• Both Mili-Liter & cm³

• None of these

The terms used internationally for multiples and submultiples of various units are known as____

For scientific notation internationally accepted practice is that there should be ________ digit(s) before the decimal point.

The number of significant figures in 1.40 x 10⁵ are_______

If a body changes its position with respect to some observer, then it will be in state of _______

If the speed or direction of the moving body changes with time then its velocity is said to be______

If the velocity of a body changes equally in equal intervals of time then its acceleration will be _________

The quantity which are described by magnitude as well as direction is called____

The quantity which can be described by a number, with suitable unit only is called______

Which of the following is a vector quantity?

A change in position is called __________

Total length of a path between two points is known as __________

There are ________ equations of motion which are used to solve the problems about the motion of bodies.

If the velocity of the body is increasing, then its acceleration will be _________

Static friction is___________ than kinetic friction.

The value of weight of a body of constant mass depends on________

The bodies of masses m1 and m2 attached to the ends of an inextensible string passing over a frictionless pulling such that both move vertically. The acceleration of the bodies is_____

(Which Option is Correct ?)

Which of the following is the unit of momentum?

1. Nm
2. kgms^-2
3. Ns
4. Ns^-1

(Which Option is Correct ?)

The characteristic of a body due to which it tends to retain its state of rest or of uniform motion is known as______

The law of motion is also known as law of ___________

______ is the agency which changes or tends to change the state of rest or of uniform motion of a body.

Walking on road is an example of ________ law of motion.

Newton’s first law of motion is valid only in the absence of ___________

ST unit of Momentum is_______________

1. Kgms^-2
2. Ns
3. Kems^-1

Which Option is Correct?

SI unit of force is ______________

First Condition of Equilibrium is represented by________

The Center of Gravity of Triangle is the_________

Torque is a _________ quantity.

The center of Gravity of parallelogram, rectangle, square is the______

In System International, the unit of torque is_________

1. N
2. Nm^-2
3. Nm^-1
4. Nm

Which Option is Correct ?

In Unstable equilibrium, the center of gravity is ____________ than the original position.

The type of Equilibrium in which after disturbance, the body again comes to rest position and center of gravity remains unchanged?

If the center of gravity of the body is below the fulcrum, then the body will be in ___________ equilibrium.

During Rotation the particles of the body rotate along fixed circles. The straight line joining the centers of these circles is known as________

The Torque produced in a body due to a Couple is equal to the product of one of the forces and the ____

Sigma (∑) is the Greek letter which is used to represent______

An Artificial Satellite keeps on revolving around the earth in different orbits with uniform speed due to the?

What will be the value of G if Mass of the Earth becomes Four Times_______

The SI unit of gravitational force is______

The mass of Earth is approximately_________

1. 6.9 x 10²⁴ kg
2. 6.0 x 10^-24 kg
3. 6.0x 10²⁴ kg
4. 5500 x 10²⁴ kg

which one is Correct Answer ?

Unit of Gravitational Field Strength is_____

Value of g increases with the ___________

Which one of the following converts light energy into electrical energy?

Earth’s Gravitational force of attraction vanishes at_________

As we go up the value of G becomes_________

If a Rocket is fired vertically with a speed of ________, it will start revolving around the earth.

In System International, the value of G is________

1. 6.4 x 10⁶ Nm²kg^-2
2. 6.4.x 10^-11 Nm²kg^-2
3. 6.67 x 10¹¹ Nm²kg^-2
4. 6.67 x 10^-11 Nm²kg^-2

which is the Correct Answer ?

Decrease in P.E is equal to____________

What will be the kinetic energy of a car of mass 1000kg moving with a velocity of 20ms^-1 ? 

• 2 x 10² J
• 2 x 10³ J
• 2 x 10⁵ J
• 2 x 10⁷ J

which option is correct

A Motor lifts a Weight of 5-N up to the Height of 2-M in 4 Seconds. What will be the power of the motor?

The work done in lifting a brick of mass 2kg through a height of 5m above the ground will be ________

Ability of a body to do work is known as________

Product of Force and Distance covered in the direction of force is called _______

Work done will be __________ if no force act on the body.

Work done will be count as 1 _________if a force of one Newton acts on the body and it covers the distance of 1 meter in the direction of force.

Rate of doing Work with respect to Time is known as_________

Unit of Power is__________

How much power is used by a 40-kg athlete by climbing 10-M high ladder in 10-Sec_____

The Ratio of change in length to the original length is___________

Submarine works on the principle of_________

According to Archimedes, upthrust is equal to __________

The Law about Stress and Strain is presented by___________

In which of the following state, molecules do not leave their position?

What should be the approximate length of a glass tube to construct a water barometer?

Unit of density is __________

1. kg m³
2. kg m^-2
3. kg m^-3
4. kg m²

which option is Correct ?

Ionic state of matter is called __________

According to Hooke’s law, within the elastic limit stress and strain has ____________ proportion.

When Temperature of the Gas increases then Gas pressure _____________

Buoyant Force is equal to the _____________ of the liquid displaced by the object.

Thermostat works on the principle of_________

Which of the following effects evaporation?

Cause of land and sea breeze is___________

Quantity of heat that changes one kilogram of a of solid into liquid is called______

Normal human body temperature is ___________

The liquid used in thermometers is ____________

Specific heat of water is _________

• 2100 Jkg^-1K^-1
• 2500 Jkg^-1K^-1
• 3200 Jkg^-1K^-1
• 4200 Jkg^-1K^-1

Which Option is Correct ?

Linear expansion depends on__________

The device used to measure of the specific heat of an object is____________

Which of the following material has large value of temperature coefficient of linear expansion?

Celsius equivalent of 0-K is_______

Shinning silvered surfaces are __________ reflector.

False Ceiling is done due to _____________

Ventilation in our houses is only possible due to____________

Land breeze blows from____________

Metals are good conductor of heat due to the____________

Black surfaces are _________ emitter.

Which of the following is best for insulation?

Transmission of heat from one body to another body by the interaction of atoms and electrons____

Colored surfaces are ___________ absorber.

Which one is/are the insulator (s)?