Question 1 :
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 2 :
<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 3 :
Identify the type of motion in each case - Motion of the Earth around the Sun

Question 4 :
A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of the pendulum?

Question 5 :
Identify the type of motion in each case - Hands of an athlete in a race

Question 6 :
Identify the type of motion in each case - Bullock cart moving on a straight road.

Question 9 :
<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 10 :
True or False. The pendulum completes one oscillation when its bob moves from one extreme position to the other extreme position and comes back again.

Question 12 :
Identify the type of motion in each case - Motion of a pendulum

Question 13 :
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 15 :
${{Total\space distance\space covered\space}\over{Total\space time\space taken}}$ The above equation is the formula for?

Question 16 :
If you did not have a clock, how would you decide what time of the day it is?

Question 18 :
The time measured by quartz clocks is much more accurate than that by the clocks available earlier.

Question 19 :
Identify the type of motion in each case - Soldiers in a march past.