Question 1 :
State TRUE or FALSE : The distance moved by objects in a given interval of time can help us decide which one is faster or slower .
Question 2 :
Boojho wants to know whether there is any device that measures the speed. Can you help him ?
Question 3 :
The odometer of a car reads 57, 321.0 km when the clock shows the time 08 : 30 AM. Calculate the speed of the car in km/min , if at 08 : 50 AM, the odometer reading has changed to 57, 336.0 km ?
Question 4 :
The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.
Question 6 :
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 a.m. At 08:50 a.m., the odometer reading has changed to 57336.0 km. What is the distance covered by the car during this time?
Question 7 :
Which of the following cannot be used for measurement of time?
Question 8 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cc15f59b460d7261ed03.png' />
The above figure shows the distance-time graph for the motion of two vehicles A and B. Which one of the following is moving faster?
Question 9 :
Boojho is wondering how many seconds there are in a day. Can you help him ?
Question 10 :
State whether the statement is correct or not : Every object moves with a constant speed.
Question 11 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a child in a merry-go-round.
Question 12 :
Boojho is wondering how many hours are there are in a year. Can you help him ?
Question 13 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cc04f59b460d7261ecec.PNG' />
Suppose the two photographs, shown in the figures above had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the blue car.
Question 14 :
The correct symbol to represent the speed of an object is
Question 16 :
State the type of motion : Pedals of a bicycle in motion.
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb90f59b460d7261ec5e.PNG' />
Given above as figure is the distance-time graph of the motion an object. What will be the position of the object at 20 s?
Question 18 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of your hands while running.
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb90f59b460d7261ec5e.PNG' />
Given above as figure is the distance-time graph of the motion an object. What will be the position of the object at 20 s?
Question 20 :
State the type of motion : Motion of the earth around the sun.
Question 21 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb96f59b460d7261ec64.png ' />
The above figures shows a distance time graph for the motion described by table A and table B, two students were asked to plot. The graph given in figure is true for
Question 22 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cc14f59b460d7261ed02.png' />
Suppose the two photographs, shown in figures given above, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the car marked A.
Question 23 :
Motion of a train on a straight bridge is classified as:
Question 24 :
Boojho walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is
Question 26 :
The odometer of a car reads 57, 321.0 km when the clock shows the time 08:30 AM. Calculate the speed of the car in km/h , if at 08 : 50 AM, the odometer reading has changed to 57, 336.0 km ?
Question 27 :
A bus travels 54 km in 90 minutes. The speed of the bus is_____.
Question 28 :
State true or false: Distances between two cities are measured in kilometres.
Question 29 :
A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?
Question 30 :
The average age of children of Class VII is 12 years and 3 months. Express this age in seconds.
