Q1. A boy walk 30m in east in 5sec and then turn around and a walk west 20m in 5sec. what is the average velocity.
Q2. A boy starts from home walk 200m to his friends house in 5min stay here for 10min and then walk back home taking another 5min. find
a)total distance b)total displacement c)average speed d)average velocity e)velocity
Q3. A scooter applied brake and slow down uniformly velocity to 20m/sec to 5m/sec in 5sec. find the displacement and A.V.
Q4. A car accelerates uniformly from 18 km/h to 36 km/h in 5 sec.
(a) Find acceleration of the car in m/s².
(b) How far does the car travel during this time?
Q5. A train is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration.
Q6. An object of mass 12 kg is placed at a distance of 4 meters from another object of mass 6Kg . Calculate the gravitational force between them.
Q7. The gravitational force F between two object 10N. If the mass of both object is tripled, what will be the new gravitational force?
Q8. Two objects with mass 50Kg and100 kg are placed 10 m apart. What is the gravitational force between them?
Q9. Calculate the value of ‘g’ at the surface of earth?
Q10. Calculate the acceleration due to gravity at the surface of a satellite having a mass of 2.4\times 10^{24} kg and a radius of 1.2\times 10^6 m.
Q11. A force of 20N acts upon a body whose weight is 9.8N. What is the mass of the body and how much is its acceleration if g = 9.8 m/s².
Q12.what is Newton’s first law of motion?
Q13.define momentum?
Q14.what is the other S.I unit of force?
Q15.explain Newton’s Third Law of Motion with an example.
Q16. Why is it advised to tie luggage on a bus roof with a rope?
Q17. What causes acceleration?
Q18. Which law explains the recoil of a gun?
Q19. A ball is thrown vertically upward. Describe the changes in its velocity and acceleration during upward and downward motion
Q20. Why is mass considered a scalar quantity but weight a vector quantity?
Q21. How does the value of acceleration due to gravity vary with height and depth from the Earth’s surface? Explain.
Q22. Why do all objects fall with the same acceleration on Earth, regardless of their mass? Explain using Newton’s laws.
Q23. If the distance between two objects becomes half, how will the gravitational force between them change? Explain mathematically.
Q24. A stone and a feather are dropped from the same height in a vacuum. Which will reach the ground first? Why?
Q25.How does the weight of an object vary from Earth to Moon? What causes this difference?
Q26.A satellite is orbiting Earth in vacuum. If its mass suddenly doubles, what happens to the gravitational force between Earth and the satellite?
Q27. A student says “Weight is just mass multiplied by gravity.” Why is this statement incomplete or misleading in certain contexts?
Q28. You are standing on a weighing machine inside a lift. The lift suddenly accelerates upward. What will the machine show?
Q29. Two identical balls are dropped—one on Earth and one on Moon. Which one takes longer to reach the ground and why?
Q30. Why does a person feel lighter while swimming in water compared to standing on land, even though Archimedes’ Principle is excluded here?
Q31. Gravitational force is said to be the weakest among fundamental forces. Yet it governs planetary motion. Why?
Q32. If Earth's radius suddenly shrinks but its mass remains the same, what happens to the value of ‘g’ on its surface?
Q33. A ball is thrown vertically upward with velocity ‘v’. At what point is its acceleration zero? Justify your answer.
Q34. What is the difference between speed and velocity?
Q35. Define uniform motion and non-uniform motion.
Q36.What is a reference point? How does it help in defining motion? Explain with examples.
Q37.A car attains a speed of 20 m/s in 5 seconds. Calculate its acceleration.
Q38. What is motion and it’s types in detail?
Q39. What is the S.I unit of acceleration?
Q40. Write the formula of weight on moon?
Q41. Define universal law of graviton?
Q42. Why G is constant and that acceleration due to gravity not depend on object mass.
Q43. Define types of work with suitable example?
Q44. Define types of motion?
Q45. What is displacement? At which time the distance = displacement .
Q46. Types of motion.
Q47. Types of speed.
Q48.What is velocity and its types?
Q49.draw any 6 types of graph of chapter motion?
Q50. What is force?
Q51. Effects of force?
Q2. A boy starts from home walk 200m to his friends house in 5min stay here for 10min and then walk back home taking another 5min. find
a)total distance b)total displacement c)average speed d)average velocity e)velocity
Q3. A scooter applied brake and slow down uniformly velocity to 20m/sec to 5m/sec in 5sec. find the displacement and A.V.
Q4. A car accelerates uniformly from 18 km/h to 36 km/h in 5 sec.
(a) Find acceleration of the car in m/s².
(b) How far does the car travel during this time?
Q5. A train is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration.
Q6. An object of mass 12 kg is placed at a distance of 4 meters from another object of mass 6Kg . Calculate the gravitational force between them.
Q7. The gravitational force F between two object 10N. If the mass of both object is tripled, what will be the new gravitational force?
Q8. Two objects with mass 50Kg and100 kg are placed 10 m apart. What is the gravitational force between them?
Q9. Calculate the value of ‘g’ at the surface of earth?
Q10. Calculate the acceleration due to gravity at the surface of a satellite having a mass of 2.4\times 10^{24} kg and a radius of 1.2\times 10^6 m.
Q11. A force of 20N acts upon a body whose weight is 9.8N. What is the mass of the body and how much is its acceleration if g = 9.8 m/s².
Q12.what is Newton’s first law of motion?
Q13.define momentum?
Q14.what is the other S.I unit of force?
Q15.explain Newton’s Third Law of Motion with an example.
Q16. Why is it advised to tie luggage on a bus roof with a rope?
Q17. What causes acceleration?
Q18. Which law explains the recoil of a gun?
Q19. A ball is thrown vertically upward. Describe the changes in its velocity and acceleration during upward and downward motion
Q20. Why is mass considered a scalar quantity but weight a vector quantity?
Q21. How does the value of acceleration due to gravity vary with height and depth from the Earth’s surface? Explain.
Q22. Why do all objects fall with the same acceleration on Earth, regardless of their mass? Explain using Newton’s laws.
Q23. If the distance between two objects becomes half, how will the gravitational force between them change? Explain mathematically.
Q24. A stone and a feather are dropped from the same height in a vacuum. Which will reach the ground first? Why?
Q25.How does the weight of an object vary from Earth to Moon? What causes this difference?
Q26.A satellite is orbiting Earth in vacuum. If its mass suddenly doubles, what happens to the gravitational force between Earth and the satellite?
Q27. A student says “Weight is just mass multiplied by gravity.” Why is this statement incomplete or misleading in certain contexts?
Q28. You are standing on a weighing machine inside a lift. The lift suddenly accelerates upward. What will the machine show?
Q29. Two identical balls are dropped—one on Earth and one on Moon. Which one takes longer to reach the ground and why?
Q30. Why does a person feel lighter while swimming in water compared to standing on land, even though Archimedes’ Principle is excluded here?
Q31. Gravitational force is said to be the weakest among fundamental forces. Yet it governs planetary motion. Why?
Q32. If Earth's radius suddenly shrinks but its mass remains the same, what happens to the value of ‘g’ on its surface?
Q33. A ball is thrown vertically upward with velocity ‘v’. At what point is its acceleration zero? Justify your answer.
Q34. What is the difference between speed and velocity?
Q35. Define uniform motion and non-uniform motion.
Q36.What is a reference point? How does it help in defining motion? Explain with examples.
Q37.A car attains a speed of 20 m/s in 5 seconds. Calculate its acceleration.
Q38. What is motion and it’s types in detail?
Q39. What is the S.I unit of acceleration?
Q40. Write the formula of weight on moon?
Q41. Define universal law of graviton?
Q42. Why G is constant and that acceleration due to gravity not depend on object mass.
Q43. Define types of work with suitable example?
Q44. Define types of motion?
Q45. What is displacement? At which time the distance = displacement .
Q46. Types of motion.
Q47. Types of speed.
Q48.What is velocity and its types?
Q49.draw any 6 types of graph of chapter motion?
Q50. What is force?
Q51. Effects of force?
