• #### 1.  The mass of a body which is equal to the ratio of the force acting on a body to the acceleration produced in the body is

• the gravitational mass
• the electromagnetic mass
• the internal mass
• the inertial mass

• 1 N
• 4 N
• 2 N
• 8 N

• 4 N
• 10 N
• 22 N
• 18 N

• one
• four
• two
• three
• #### 5.  A passenger in a moving bus is thrown forward when the bus is suddenly stopped. This is explained

• by Newtons first law
• by Newtons second law
• by Newtons third law
• by the principle of conservation of momentum
• #### 6.  A passenger sitting in a bus moving at uniform speed, feels pushed backward whenever the bus is accelerated forward. This type of force is called

• Gravitational force
• real force
• fictitious force or pseudo force
• frictional force

• 10 kg m/s
• 7 kg m/s
• 2 .5 kg m/s
• 3 kg m/s
• #### 8.  Inside the nucleus, two protons are held together by a force which overcomes the repulsion. This force is called

• gravitational force
• electrostatic force
• weak force
• strong force
• #### 9.  A block of wood is placed on a surface. A force is applied parallel to the surface to move the body. The frictional force developed acts

• normal to the surface upwards
• normal to the surface downwards
• along the direction of the applied force
• opposite to the direction of the applied force
• #### 10.  A bullet of mass 25 g moving with a velocity of 200 cm/s is stopped within 5 cm of the target. The average resistance offered by the target is

• 1 N
• 2 N
• 3 N
• 4 N
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