Question 1 :
The displacement of a moving object in a given interval of time is zero. Would the distance travelled by the object also be zero?
Question 2 :
The average speed of an object is obtained by dividing the total distance travelled by the total time taken. TRUE or FALSE ?
Question 3 :
A stone is thrown in a vertically upward direction with a velocity of $5 m s^{-1}$. If the acceleration of the stone during its motion is $ 10 m s^{-2}$ in the downward direction, what will be the height attained by the stone ?
Question 4 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2cdf59b460d7261f630.png' />
The distance-time graph of three objects A,B and C is shown above,According to this graph,Which of the three is travelling the fastest?
Question 5 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d29bf59b460d7261f5ec.JPG' />
In the above figure, the velocity-time graph shows the motion of a cyclist. Find its velocity.
Question 6 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d294f59b460d7261f5e2.JPG' />
Using above data, draw time-displacement graph for a moving object and use the graph to find average velocity for first 4s.
Question 7 :
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What is Joseph’s average velocity in jogging from A to C?
Question 8 :
Which of the following equation is (are) equation of motion ?
Question 11 :
Give an example for an object moving with an acceleration but with uniform speed.
Question 12 :
An artificial satellite is moving in a circular orbit of radius 42250 km. What is its speed if it takes 24 hours to revolve around the Earth?
Question 14 :
Starting from a stationary position, Rahul paddles his bicycle to attain a velocity of 6 $m s^{–1}$ in 30 s. Then he applies brakes such that the velocity of the bicycle comes down to 4 $m s^{-1}$ in the next 5 s. What is the acceleration of the bicycle in both the cases?
Question 15 :
Velocity is the speed of an object moving in a definite direction. TRUE or FALSE ?
Question 16 :
The numerical ratio of displacement to distance for a moving object is _____.
Question 17 :
A ball is dropped gently from a height of 20m. If its velocity increases uniformly at the rate of 10 $m/s^2$, with what velocity will it strike the ground?
Question 18 :
Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m$s^{–1}$. It implies that the boy is
Question 19 :
An object starting from rest travels 20 m in first 2 s and 160 m in next 4 s. What will be the velocity after 7 s from the start?
Question 20 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2f0f59b460d7261f65f.jpg' />
The speed-time graph for a car is shown in the the above figure. Which part of the graph represents uniform motion of the car?
Question 21 :
An object travels 16 m in 4 s and then another 16 m in 2 s. What is the average speed of the object?
Question 22 :
The distance travelled by the object in unit time is referred to as speed. TRUE or FALSE ?
Question 23 :
The shortest distance measured from the initial to the final position of an object is known as the displacement. TRUE or FALSE ?
Question 24 :
A bus decreases its speed from 80 km$h^{–1}$ to 60 km$h^{–1}$ in 5 s. What is the acceleration of the bus?
Question 25 :
An object is dropped from rest at a height of 150 m and simultaneously another object is dropped from rest at a height 100 m. What is the difference in their heights after 2 s if both the objects drop with same accelerations?
Question 26 :
A ball is dropped gently from a height of 20m. If its velocity increases uniformly at the rate of 10 $m/s^2$, after what time will it strike the ground?
Question 27 :
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What is Joseph’s average speed in jogging from A to B ?
Question 28 :
Area under a v – t graph represents a physical quantity which has the unit
Question 29 :
A train starting from a railway station and moving with uniform acceleration attains a speed of 40 km/h in 10 minutes. Find its acceleration.
Question 30 :
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What is Joseph's average speed from A to C?
Question 31 :
What is the nature of the distance-time graphs for non-uniform motion of an object?
Question 32 :
Is it possible to have an object moving in a certain direction with an acceleration in the perpendicular direction?
Question 33 :
A stone is thrown in a vertically upward direction with a velocity of $5 m s^{-1}$. If the acceleration of the stone during its motion is $ 10 m s^{-2}$ in the downward direction, how much time will it take to reach there?
Question 34 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2d0f59b460d7261f635.png' />
According to the speed-time graph for a car shown above,does a part (or whole) of the graph represents uniform motion of the car?
Question 35 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d296f59b460d7261f5e4.JPG' />
Using above data, draw time - displacement graph for a moving object and find average velocity for last 6 s.
Question 36 :
Abdul, while driving to school, computes the average speed for his trip to be 20 km $h^{–1}$. On his return trip along the same route, there is less traffic and the average speed is, 30 km $h^{–1}$. What is the average speed for Abdul’s trip?
Question 38 :
Give an example for an object moving in a certain direction with an acceleration in the perpendicular direction.
Question 39 :
The velocity of an object can be changed by changing the:
Question 40 :
The accelaration of an object is obtained by which of these formulas?
Question 41 :
An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes and 20 seconds?
Question 42 :
A bus starting from rest moves with a uniform acceleration of $ 0.1 m s^{-2}$ for 2 minutes. What is the distance travelled?
Question 43 :
Under what condition(s) is the magnitude of average velocity of an object equal to its average speed?
Question 44 :
If the athlete takes t seconds to go once around the circular path of radius r, the speed v is given by ?
Question 45 :
The brakes applied to a car produce an acceleration of $6 m s^{-2}$ in the opposite direction to the motion. If the car takes 2 s to stop after the application of brakes, What is the distance it travels during this time?
Question 46 :
Acceleration is a measure of the change in the velocity of an object per unit time. TRUE or FALSE ?
Question 47 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d2ecf59b460d7261f659.jpg' />
The above figure shows the distance time graph of three objects A, B and C. Which of the three is travelling the fastest?
Question 48 :
An electron moving with a velocity of 5 × $ 10^{4}$ $ms^{-1}$ enters into a uniform electric field and acquires a uniform acceleration of $ 10^{4}$ $ms^{–2}$ in the direction of its initial motion. Calculate the time in which the electron would acquire a velocity double of its initial velocity.
Question 50 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d295f59b460d7261f5e3.JPG' />
Using above data, draw time - displacement graph for a moving object and find average velocity for next 4 s.
