Q1. A pitcher throws a baseball. As the ball leaves the pitcher's hand, it has a certain momentum. Which force primarily acts to change this momentum later?A Air resistance and gravity B The normal force from the ground C Magnetic force D The force from the pitcher's hand View full solution →
Q2. When a car suddenly stops, passengers tend to lean forward due to:A Inertia of rest B Gravity C Momentum D Inertia of motion View full solution →
Q3. A rocket works on the principle of:A Newton's Second Law of Motion B Law of Conservation of Energy C Newton's Third Law of Motion D Newton's First Law of Motion View full solution →
Q4. Which of the following would require the largest force to accelerate?A All would require the same force B A 1 kg mass accelerated at 10 m/s² C A 5 kg mass accelerated at 2 m/s² D A 2 kg mass accelerated at 5 m/s² View full solution →
Q5. A cart of mass M is moving with velocity V. If a mass m is added to the cart, the new velocity of the cart will be:A V B ((M+m) / M) * V C (M+m) * V D (M / (M+m)) * V View full solution →
Q6. A force of 20 N produces an acceleration of 4 m/s² in an object. What is the mass of the object?A 80 kg B 5 kg C 20 kg D 4 kg View full solution →
Q7. Which of the following is an example of a contact force?A Gravitational force B Magnetic force C Electrostatic force D Frictional force View full solution →
Q8. Which of the following is not a consequence of Newton's Third Law?A A ball rolling down an inclined plane B Walking on the ground C Swimming in water D Recoil of a gun View full solution →
Q9. The rate of change of momentum of an object is proportional to the:A Velocity of the object B Mass of the object C Time for which force is applied D Applied force View full solution →
Q10. Impulse is defined as:A Change in Velocity / Time B Force / Time C Force x Time D Mass x Velocity View full solution →
Q11. Which of the following quantities is a vector quantity?A Speed B Mass C Distance D Force View full solution →
Q12. Which of the following is a non-contact force?A Magnetic force B Muscular force C Spring force D Frictional force View full solution →
Q13. A force of 50 N acts on a body for 0.5 s. What is the impulse produced?A 50.5 Ns B 25 Ns C 100 Ns D 0.01 Ns View full solution →
Q14. Which concept was first introduced by Galileo Galilei?A Conservation of momentum B Action-reaction principle C Inertia D Gravitational force View full solution →
Q15. The law of conservation of momentum states that:A Momentum is always changing B Momentum is created and destroyed C Momentum of a body is always zero D The total momentum of an isolated system remains constant View full solution →
Q16. When a force is applied to an object, its momentum changes from p1 to p2 over a time interval t. The force applied is:A (p1 - p2) / t B (p2 + p1) / t C (p2 - p1) / t D (p2 - p1) * t View full solution →
Q17. A force of 10 N acts on an object, causing it to accelerate at 2 m/s². What would be the acceleration if a force of 20 N acted on the same object?A 4 m/s² B 5 m/s² C 2 m/s² D 10 m/s² View full solution →
Q18. What is the approximate value of 1 Newton?A Force exerted by Earth on a 1 kg mass B Force needed to accelerate a 1 kg mass by 1 m/s² C Force needed to lift a 1 kg mass vertically D Force exerted by a 100 kg mass View full solution →
Q19. Which of the following has the most inertia?A A truck B A car C A train D A bicycle View full solution →
Q20. Which of the following forces is responsible for making objects fall to the Earth?A Magnetic force B Gravitational force C Frictional force D Electrostatic force View full solution →