Motion
Important questions from motion class 9
1.Name the parameter that are equal and have the same sign for A body moving along a straight line in the positive direction.
2. A body is moving along a circular path of radius R. what will be the distance and displacement of the body when it completes half a revolution?
3. Which of these speed and velocity of a body is a vector quantity?
4.What is the SI unit of acceleration
5.what is the unit of angular displacement?
6. Name the physical quantity which require both magnitude and direction to describe it completely
7 A body cover a distance of 10 metre in every 1 second during its motion what type of motion is this?
8. When the velocity of the body increases by equal amount in equal interval of time
9. which parameter is obtained from distance time graph?
10. Which graph gives the velocity at slope?
Fill in the blanks.
1. The position of an object can be described in term of .........and........
2.The ............. quantities having similar units but different direction are not added by ordinary arithmetical rules.
3. When the velocity of a body increases with time its acceleration is..........
4. A body falling freely under gravity has............. acceleration.
5. The distance time graph of a body moving with uniform a speed..........
6. Distance travelled by a body is always greater than or equal to.........
7. The angular velocity and linear speed are related by relationship..........
8. The velocity of a body travelling in a particular direction is equal to............
9. A body covering equal distance in equal interval of time is said to show............. motion.
10. Distance of a satellite when it makes a complete round along its circular orbit is...........
Answer the following questions.
(a) What is the unit of (i) speed (ii) acceleration?
(b) If u and v are the initial and final velocities of a moving object, then find out its average velocity?
(c) Draw distance-time graph of a body moving with a uniform speed.
(d) Write the symbols of the following quantities: Initial velocity, Final velocity, Distance, Acceleration.
(e)A body has an acceleration of -2.5 m/s2. What is its retardation?
(f) Show the location of a point on a graph which is 5 m and 45° north of east.
(g) Give two differences between speed and velocity,
(h) Derive the equation, s = ut + at.
(i) Derive the equation, s = ut+at2 using a speed-time graph.
(j) How does displacement differ from distance?
(k) Derive the equation, v = u + at
(l) How can the position of an object be described?
(m) A quantity is measured to be -20 m/s. Is it speed or velocity? Give reasons.
Important questions from motion class 9
1.Name the parameter that are equal and have the same sign for A body moving along a straight line in the positive direction.
2. A body is moving along a circular path of radius R. what will be the distance and displacement of the body when it completes half a revolution?
3. Which of these speed and velocity of a body is a vector quantity?
4.What is the SI unit of acceleration
5.what is the unit of angular displacement?
6. Name the physical quantity which require both magnitude and direction to describe it completely
7 A body cover a distance of 10 metre in every 1 second during its motion what type of motion is this?
8. When the velocity of the body increases by equal amount in equal interval of time
9. which parameter is obtained from distance time graph?
10. Which graph gives the velocity at slope?
Fill in the blanks.
1. The position of an object can be described in term of .........and........
2.The ............. quantities having similar units but different direction are not added by ordinary arithmetical rules.
3. When the velocity of a body increases with time its acceleration is..........
4. A body falling freely under gravity has............. acceleration.
5. The distance time graph of a body moving with uniform a speed..........
6. Distance travelled by a body is always greater than or equal to.........
7. The angular velocity and linear speed are related by relationship..........
8. The velocity of a body travelling in a particular direction is equal to............
9. A body covering equal distance in equal interval of time is said to show............. motion.
10. Distance of a satellite when it makes a complete round along its circular orbit is...........
Answer the following questions.
(a) What is the unit of (i) speed (ii) acceleration?
(b) If u and v are the initial and final velocities of a moving object, then find out its average velocity?
(c) Draw distance-time graph of a body moving with a uniform speed.
(d) Write the symbols of the following quantities: Initial velocity, Final velocity, Distance, Acceleration.
(e)A body has an acceleration of -2.5 m/s2. What is its retardation?
(f) Show the location of a point on a graph which is 5 m and 45° north of east.
(g) Give two differences between speed and velocity,
(h) Derive the equation, s = ut + at.
(i) Derive the equation, s = ut+at2 using a speed-time graph.
(j) How does displacement differ from distance?
(k) Derive the equation, v = u + at
(l) How can the position of an object be described?
(m) A quantity is measured to be -20 m/s. Is it speed or velocity? Give reasons.
