## 10 Physics GK Questions With Answers

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**Here are some Physics GK Questions With Answers**

**1-What is the unit of force? **

Newton,

Watt,

Joule,

Hertz

**2-What is the formula of acceleration?**

v/t

m/v

m/t²

t/v²

**3-What is the principle of conservation of energy? **

Energy cannot be created or destroyed, it can only be transformed from one form to another

Energy can be created but cannot be destroyed

Energy can be destroyed but cannot be created

Energy can be both created and destroyed

**4-What is the law of gravitation? **

Every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them

Every particle in the universe attracts every other particle with a force that is directly proportional to their masses and inversely proportional to the distance between them

Every particle in the universe repels every other particle with a force that is directly proportional to their masses and inversely proportional to the distance between them

Every particle in the universe attracts every other particle with a force that is directly proportional to their masses and directly proportional to the distance between them

**5-What is the speed of light in vacuum?**

3 x 10⁸ m/s

2 x 10⁸ m/s

4 x 10⁸ m/s

5 x 10⁸ m/s

**6-What is the law of reflection?**

The angle of incidence is equal to the angle of reflection

The angle of incidence is greater than the angle of reflection

The angle of incidence is less than the angle of reflection

The angle of incidence has no relation with the angle of reflection

**7-What is the principle of Archimedes? **

Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object

Any object, wholly or partially immersed in a fluid, is pushed down by a force equal to the weight of the fluid displaced by the object

Any object, wholly or partially immersed in a fluid, is neither pushed up nor down by the fluid

Any object, wholly or partially immersed in a fluid, is pushed up by a force equal to half the weight of the fluid displaced by the object

**8-What is the law of conservation of momentum?**

The total momentum of an isolated system remains constant

The total momentum of an isolated system is increasing with time

The total momentum of an isolated system is decreasing with time

The total momentum of an isolated system is zero

**9-What is the formula of kinetic energy?**

1/2mv²

mv²

m²v

1/2mv

**10-What is the unit of electric charge?**

Coulomb

Watt

Joule

Hertz

## ANSWERS: Physics GK Questions With Answers

1-Newton- It is the SI unit of force. It is defined as the force required to give a mass of 1 kg an acceleration of 1 m/s².

2-m/t²- Acceleration is defined as the rate of change of velocity with time. Its formula is a = Δv/Δt or a = v/t.

3-Energy cannot be created or destroyed, it can only be transformed from one form to another

The principle of conservation of energy states that the total energy of an isolated system remains constant. Energy can only be transformed from one form to another.

4-Every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them

The law of gravitation states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. It is one of the fundamental laws of physics and is used to explain the motion of planets, stars, and other celestial bodies.

5- 3 x 10⁸ m/s

The speed of light in vacuum is approximately 3 x 10⁸ meters per second (m/s). It is a fundamental constant of nature and is used in many areas of physics and engineering.

6- The angle of incidence is equal to the angle of reflection

The law of reflection states that the angle of incidence is equal to the angle of reflection. This means that if a ray of light is incident on a surface at an angle, it will be reflected at the same angle on the other side of the surface.

7-Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object

The principle of Archimedes states that any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. This is why objects float in water or other fluids.

8-The total momentum of an isolated system remains constant

The law of conservation of momentum states that the total momentum of an isolated system remains constant. This means that the momentum of an object cannot change unless it is acted upon by an external force.

9- 1/2mv²

Kinetic energy is the energy of motion. Its formula is K = 1/2mv², where m is the mass of the object and v is its velocity.

10- Coulomb

Coulomb is the SI unit of electric charge. It is defined as the amount of charge transported in one second by a current of one ampere.

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