Question 1 :
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 3 :
Identify the type of motion in each case - Pedal of a bicycle in motion
Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf5f59b460d7261ecd9.jpg' />
(Refer to the above table)While going for a school picnic, Paheli decided to note the reading on the odometer of the bus after every 30 minutes till the end of the journey. Later on she recorded her readings in table as shown above. Can you calculate the speed of the bus?
Question 6 :
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 57336.0 km?
Question 7 :
The time measured by quartz clocks is much more accurate than that by the clocks available earlier.
Question 9 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf6f59b460d7261ecda.jpg' />
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1ac278c526e972caf049.jpg' />
(Refer to the above table)While going for a school picnic, Paheli decided to note the reading on the odometer of the bus after every 30 minutes till the end of the journey. Later on she recorded her readings in table as shown above. Can you find the speed of the bus from its distance-time graph given?
Question 10 :
Identify the type of motion in each case - Motion of a pendulum
Question 12 :
Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 m/s, calculate the distance between her house and the school.
Question 14 :
In which motion is the average speed same as the actual speed?
Question 15 :
What is the motion of a train on a straight bridge?
Question 17 :
When we say that a car is moving with a speed of 50 kilometres per hour, it implies that it will cover a distance of 50 kilometres in how much time?
Question 18 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf0f59b460d7261ecd2.jpg' />
The above image shows the position of some vehicles moving on a road in the same direction at some instant of time. Now the second picture in the above image shows the position of the same vehicles after some time. From your observation of the two figures, answer the following questions: Which one of them is moving the slowest of all?
Question 19 :
A person went to see off his friend at the bus stand. Suppose he starts pedalling his bicycle at the same time as the bus begins to move. The distance covered by him after 5 minutes would be much smaller than that covered by the bus. Would you say that the bus is moving faster than the bicycle?
Question 20 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbeff59b460d7261ecd1.jpg' />
The above image shows the position of some vehicles moving on a road in the same direction at some instant of time. Now the second picture in the above image shows the position of the same vehicles after some time. From your observation of the two figures, answer the following questions: Which vehicle is moving the fastest of all?
Question 22 :
The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.
Question 23 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf9f59b460d7261ecde.jpg' />
Which of the above distance-time graphs shows a truck moving with speed which is not constant?
Question 24 :
Identify the type of motion in each case - Motion of a swing
Question 25 :
What is the motion of a horse pulling a cart on a straight road?
Question 26 :
Identify the type of motion in each case - Hands of an athlete in a race
Question 27 :
Identify the type of motion in each case - Soldiers in a march past.
Question 29 :
The odometer of a car reads 57321.0 km when the clock shows the time 08:30 AM. At 08:50 AM, the odometer reading has changed to 57336.0 km. Calculate the speed of the car in km/min during this time.
Question 31 :
Rockets, launching satellites into earth’s orbit, often attain speeds up to 8 km/s. On the other hand, a tortoise can move only with a speed of about 8 cm/s. Can you calculate how fast is the rocket compared with the tortoise?
Question 32 :
What is the motion of the hammer of an electric bell?
Question 34 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf1f59b460d7261ecd4.jpg' />
A person sets up a simple pendulum as shown in the above figure with a thread or string of length nearly one metre. He switches off any fans nearby and lets the bob of the pendulum come to rest at its mean position. Then, he marks the mean position of the bob on the floor below it or on the wall behind it and to measure the time period of the pendulum he will need a stopwatch. Now, to set the pendulum in motion, he gently holds the bob and moves it slightly to one side making sure that the string attached to the bob is taut while he displaces it. Now, he releases the bob from its displaced position. Remember that the bob is not to be pushed when it is released.Next, he notes the time on the clock when the bob is at its mean position. Instead of the mean position he may note the time when the bob is at one of its extreme positions. He measures the time the pendulum takes to complete 20 oscillations. He repeats this activity a few times. Is the time period of the pendulum will nearly the same in all cases?
Question 35 :
A simple pendulum consists of a small metallic ball or a piece of stone suspended from a rigid stand by a thread. What is this metallic ball called?
Question 36 :
${{Total\space distance\space covered\space}\over{Total\space time\space taken}}$
The above equation is the formula for?
Question 37 :
The distance covered by an object in a unit time is the ______ of the object
Question 38 :
If you did not have a clock, how would you decide what time of the day it is?
Question 40 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf7f59b460d7261ecdb.jpg' />
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1ac278c526e972caf049.jpg' />
(Refer to the above table)While going for a school picnic, Paheli decided to note the reading on the odometer of the bus after every 30 minutes till the end of the journey. Later on she recorded her readings in table as shown above. Can you now find the distance moved by the bus at 9:45 AM from the graph given?
Question 41 :
The time taken by the pendulum to complete one oscillation is called as?
Question 43 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf5f59b460d7261ecd8.jpg' />
(Refer to the above table)While going for a school picnic, Paheli decided to note the reading on the odometer of the bus after every 30 minutes till the end of the journey. Later on she recorded her readings in table as shown above. How far was the picnic spot from the school?
Question 46 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cbf8f59b460d7261ecdd.jpg' />
The above figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?
Question 49 :
Identify the type of motion in each case - Bullock cart moving on a straight road.