Physics Quiz | 25 Important Questions and Answers | Science GK Quiz | Competitive Exam Preparation

In this video, 25 important questions from Physics are included.

Which one of the following is a vector quantity?
What type of energy is stored in the spring of a watch?
The working of a rocket is based on which Newton's law of motion?
What is the rotational analogue of mass in linear motion?
What is the minimum escape velocity of a rocket to be launched from Earth to space?
What is Young's modulus of a perfectly rigid body?
The value of acceleration due to gravity at the equator will ______ when the Earth stops rotating.
Which of the following is a good conductor of electricity?
What is the principle of Fibre optical communication?
What is the frequency of direct current?
"Curie" is a unit of?
What is the unit of relative density?
Which of the below waves cannot be polarised?
What is the fourth state of matter?
Which is the force that causes objects to float?
Which of the below is used to locate submerged objects?
Which device is used for converting alternating current (AC) to direct current (DC)?
Which of the below is a measure of sound level?
Acceleration is inversely proportional to?
What is the principle behind hydraulic brakes used in automobiles?
Sound cannot travel through?
How does the heat from the Sun reach Earth?
What is it called when the Sun is exactly over the Earth's equator?
The surface tension of a liquid decreases when its temperature is?
Which of the below is a non-renewable energy source?

[moorthycisf]

newton's third law states that every action has an equal and an opposite reaction
relative density is density of substance / density of water and we get to see that density of water is nothing but the formula of density is mass / volume so density of substance also = mass / volume we get to see that everything gets cancelled and thus it has no unit unlike the normal density which has unit as kgm^3

obviously we know 3 forms of matter exist which are solids liquids and gases and if there is something correct as the fourth state of matter it could only be plasma .

buoyancy obviously cuz we know that force buoyant = density * volume * gravity which is 9.8 m/s or 10m/s .

in pascal's law i think so it states that if a pressure s put on one part of the object it also is same in the other end

obviously we know that sound cannot travel in vaccum

pressure is increased with depth

[publiccomment]

Please dont read the answer a, b, c, d it feel bore, just read the right answer.

[Avadhanivln]

Question are easy for class X . Some body who got 22 from standard viii must be good at studies

[proseonthepage]

I can’t believe I’m watching this for entertainment

[SoniSingh-rhty]

I came first in my school in birds with 99%

[muhammafhamza]

"Bequeral" is the unit of radioactivity.

Curie is not the unit.

[kishorebabu]

25/25 bro very easy. Always thankful for this channel ❤

[rishipramanick]

One thing is the propulsion of rocket is based on second law of motion where it states that if f is proportional to momentum then if u differentiate f wrt t then u get f = vdm/dt + mdv/dt mass of fuel is not constant in expulsion of rocket then f= vdm/dt and hence rocket propulsion is based on 2nd law of motion

[IjaboyodeSoji]

I have got 11 points, Thanks for your acknowledge

[dkgaming]

Iam studying in 8 th standard I got 21/25

[sharminakp]

25/25 marks lgot it l studiying 8std GHSS puzhathi

[prudhviraj]

But very important physic questions sir