Question 2 :
State whether true or false.<br/>Newton's second law gives the measure of force.
Question 5 :
The mass of an object is a $\underline{                     }$ measure of inertia:<br/>
Question 6 :
A jeep, scooter, a car and a truck are moving on a road at the same speed of 70 m/s under identical conditions. All these vehicles are hit from behind with the same force and they keep moving forward in the same direction. The maximum acceleration will be produced in the:
Question 7 :
If action and reaction were to act on the same body, then
Question 8 :
A tennis ball and a cricket ball, both are stationary. To start motion in them
Question 11 :
A bullet loses 1/20 of its initial velocity after penetrating a plank. How many plank's required to stop the bullet?
Question 12 :
When an electron and a positron meet at low speed in empty space, they annihilate each other to produce two $0.511-MeV$ gamma rays. What law would be violated if they produced one gamma-ray with the energy of $1.02\, MeV$? 
Question 13 :
Write true or false for the following statements:<br>Impulse represents the rate of change of momentum of a body.
Question 14 :
A $7500\ kg$ rocket is set for vertical firing. The exhaust speed is $800\ m/s$ w.r.t. rocket. To give an vertical upward acceleration of $10{m/s^2}$, the amount of gas ejected per second for the needed thrust will be
Question 15 :
A man fires a bullet of mass $200 g$ at a speed of $5 m/s$. The gun is of one kg mass. The velocity with which the gun will recoil backward is
Question 16 :
If $120 N $ of force is acting on a body with $6 ms^{-2}$ acceleration, Its mass is _____________.
Question 17 :
A student attempts to pull himself up by tugging on his hair. He will not succeed.
Question 18 :
In the case of uniform circular motion, which one of the following physical quantities does not remain constant?<br>
Question 19 :
State whether the given statement is True or False :The motion of the moon around the earth in circular path is an accelerated motion.<br/>
Question 20 :
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
Question 21 :
The order of magnitude of revolution period of the earth around the sun is
Question 22 :
In which of following cases, the average velocity of a body is equal to its instantaneous velocity?
Question 24 :
Name a physical quantity that remains constant in a uniform circular motion.<br/>
Question 25 :
Which of the following are examples of uniform circular motion ?
Question 26 :
A force of $100\ N$ acting on a body for $5$ second gives it a velocity of $20\ m\ s^{-1}$. Calculate the mass of the body.
Question 27 :
The only property that does not change in a uniform circular motion is
Question 28 :
A stone is thrown horizontally with the velocity $v=15\ m/s$. from a tower of height $h=25\ m$.
Question 29 :
From a $200  m$ high tower, one ball is thrown upwards with speed of $10  { m }/{ s }$ and another is thrown vertically downwards at the same speed simultaneously. The time difference of their reaching the ground will be nearest to
Question 30 :
A bullet initially moving with a velocity $20ms^{-1}$ strikes a target and comes to reset after penetrating a distance $10 cm $ in the target .Calculate the retardation caused by the target.
Question 31 :
The two ends of a train moving with a constant acceleration pass a certain pole with velocities $u$ and $v$. The velocity with which the middle point of the train passes the same pole is
Question 32 :
A small ball rolls of the top of a stairway horizontally with a velocity of $4.5 ms^{-1}$. Each step is $0.2 m$ high and $0.3$ m wide. If g is $10$ ms$^{-2}$, then the ball will strike the $n^{th}$ step where $n$ is equal to (assume ball strike at the edge of the step)
Question 33 :
Is the buoyant force on a submerged object equal to the weight of the object itself or equal to the weight of the fluid displaced by the object?<br/>
Question 35 :
A body will experience minimum upthrust when it is completely immersed in:
Question 37 :
Buoyant force experienced by a body when fully immersed in air is less than that experienced by it in water.
Question 38 :
The mass of the moon is $\left(\dfrac{1}{8}\right)$ of the earth but the gravitational pull is $\left(\dfrac{1}{6}\right)$ of the earth. It is due to the fact that:
Question 39 :
Ablock of ice with a lead shot embedded in It is floating on water contained ina vessel. The temperature of the system is maintained at $0^{\circ}$ C as theice melts. When the ice melts completely the level of water in the vesselrises.
Question 40 :
$A$ and $B$ are two metallic pieces. They are fully immersed in water and then weighed. Now they show same loss of weight. The conclusion therefore is:<br/>
Question 41 :
Gravitational force on the surface of the moon is only ${\frac{1}{6}}$ as strong as gravitational force on the earth. What is the weight in Newton of a 10 kg object on the moon ?
Question 42 :
The maximum vertical distance through which a fully dressed astronaut can jump on the earth is 0.5 m. If mean density of the moon is two thirds that of the earth and radius is one quarter that of the earth, the maximum vertical distance through which he can jump on the moon and the ratio of time of duration of the jump on the moon to that on the earth are.
Question 43 :
A planet has a miss of eight times the mass of earth and density is also equal to eight times the average density of the earth. If g be the acceleration due to earth's gravity on its surface, then acceleration due to gravity on planet's surface will be :
Question 44 :
Two spherical bodies of mass $M$ and $5M$ and radii $R$ and $2R$ respectively are released in free space with initial separation between their centres equal to $12 R$. If they attract each other due to gravitational force only, then the distance covered by the smaller body just before collision is
