Question 1 :
State whether the statement is correct or not : The basic unit of time is second.
Question 2 :
State true or false: Distances between two cities are measured in kilometres.
Question 3 : <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 4 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of your hands while running.
Question 5 :
Which of the following cannot be used for measurement of time?
Question 7 :
Rockets, launching satellites into earth's orbit, often attains speeds up to 8 km/s. On the other hand, a tortoise can move only with a speed of about 89 cm/s. Calculate how fast is the rocket compared with the tortoise.
Question 8 :
A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?
Question 9 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a horse pulling a cart on a straight road.
Question 10 :
Distance between Bholu’s and Golu’s house is 9 km. Bholu has to attend Golu’s birthday party at 7 o’clock. He started from his home at 6 o’clock on his bicycle and covered a distance of 6 km in 40 minutes. At that point he met Chintu and he spoke to him for 5 minutes and reached Golu’s birthday party at 7 o’clock. Calculate his average speed for the entire journey
Question 11 :
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 12 :
State whether the statement is correct or not : The time period of a given pendulum is not constant.
Question 14 :
Motion of a train on a straight bridge is classified as:
Question 16 :
Boojho is wondering how many hours are there are in a year. Can you help him ?
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb94f59b460d7261ec63.png ' />
In the above figure, clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand. Which of the following statement is correct for these clocks?
Question 18 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a horse pulling a cart on a straight road.
Question 19 :
State the type of motion : Hands of an athelete in a race.
Question 20 :
The correct symbol to represent the speed of an object is
Question 21 :
State true or false: The time period of a given pendulum is not constant.
Question 22 :
Paheli and Boojho have to cover different distances to reach their school but they take the same time to reach the school. What can you say about their speed?
Question 23 :
State true or false: Distances between two cities are measured in kilometres.
Question 25 :
Motion of the hammer of an electric bell is classified as:
Question 26 :
If we denote speed by S, distance by D and time by T, the relationship between these quantities is______.
Question 27 : <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 28 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a child in a merry-go-round.
Question 29 :
State whether the statement is correct or not : The speed of a train is expressed in m/h.
Question 30 :
State whether the statement is correct or not : The time period of a given pendulum is not constant.
Question 31 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb91f59b460d7261ec5f.PNG ' />
Given above as figure is the distance-time graph of the motion an object. What is the average speed of the object?
Question 32 :
State the type of motion : Soldiers in a march past.
Question 33 :
State true or false: The speed of a train is expressed in m/h.
Question 34 :
If Boojho covers a certain distance in one hour and Paheli covers the same distance in two hours, who travels in a higher speed?
Question 35 :
A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is
Question 36 :
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 37 :
If we denote speed by S, distance by D and time by T, the relationship between these quantities is______.
Question 38 :
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 39 :
Classify the following as motion along a straight line, circular or oscillatory motion : Motion of a hammer on an electric bell.
Question 40 :
State whether the statement is correct or not : The basic unit of time is second.
Question 41 :
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
Question 42 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb96f59b460d7261ec65.png ' />In the above figure, the time period of a simple pendulum is the time taken by it to travel from:
Question 44 :
Boojho is wondering how many seconds there are in a day. Can you help him ?
Question 45 :
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
Question 46 :
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 47 :
State true or false: The basic unit of time is second.
Question 48 :
The average age of children of Class VII is 12 years and 3 months. Express this age in seconds.
Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cb93f59b460d7261ec61.png ' />
In the above figure, a foot ball ground is given. Boojho goes to the football ground to play football. The distance-time graph of his journey from his home to the ground is given above as figure. Is the motion between 0 to 4 minutes uniform or nonuniform?
Question 50 :
A bus travels 54 km in 90 minutes. The speed of the bus is_____.
