Class 9 Motion Important questions

Which of the following statements is correct? (a) both speed and velocity are same (b) speed is a scalar and velocity is a vector (c) speed is a vector and velocity is scalar (d) none of these.
What is the slope of the body when it moves with uniform velocity? (a) positive (c) negative (b) zero (d) may be positive or negative
What does area velocity time graph give? (a) distance (b) acceleration (c) displacement (d) none of the above
Differentiate between distance and displacement?
Derive mathematically the first equation of motion V=U + at?
Calculate the acceleration of a body which starts from rest and travels 87.5m 5 sec?
A car moving with a certain velocity comes to a halt if the retardation was 5m/s² find the initial velocity of the car?
Two cars A and B are moving along in a straight line. Car A is moving at a speed of 80KMph while car B is moving at a speed 50KMph in the same direction, find the magnitude and direction of (a) the relative velocity of car A with respect to B (b) The relative velocity of car B with respect to A. A ball starts from rest and rolls down 16m down an inclined plane in 4 s. (a) What is the acceleration of the ball? (b) What is the velocity of the ball at the bottom of the incline?
What does the slope of velocity–time graph give? (a) Distance (b) displacement (c) Acceleration (d) Change in velocity.
The displacement of the body can be: (a) Positive (b) negative (c) Zero (d) All of these.
Which of the following gives both direction and magnitude: (a) scalar (b) vector (c) Both (d) None.
If a moving body comes to rest, then its acceleration is: (a) Positive (b) negative (c) Zero (d) All of these depending upon initial velocity.
A body is moving with a velocity of 12m/s and it comes to rest in 18m, what was the acceleration?
A body starts from rest and moves with a uniform acceleration of 4m/s² until it travels a distance of 800m, find the find velocity?
The driver of a car traveling along a straight road with a speed of 72KM ph observes a signboard which give the speed limit to be 54KM ph. The signboard is 70m ahead when the driver applies the brakes0 calculate the acceleration of the car which will cause the car to pass the signboard at the stated speed limit?
Differentiate between scalars and vectors?
If a body starts from rest, what can be said about the acceleration of body? (a) Positively accelerated (b) Negative accelerated (c) Uniform accelerated (d) None of the above
What does slope of position time graph give? (a) speed (b) acceleration (c) uniform speed (d) Both (a) and (c) depending upon the type of graph.
When a body moves uniformly along the circle, then:- (a) its velocity changes but speed remains the same (b) its speed changes but velocity remains the same (c) both speed and velocity changes (d) both speed and velocity remains same
Which of the following statements is correct? (a) speed distance is scalar, velocity and displacement are vector (b) speed distance are vector, velocity and displacement are vector (c) speed and velocity are scalar, distance and velocity are vector (d) speed and velocity are vector, distance and displacement are scalar