V K Sally and S K Aggarwal Solutions for Chapter: Time and Motion, Exercise 3: EXERCISES
V K Sally Science Solutions for Exercise - V K Sally and S K Aggarwal Solutions for Chapter: Time and Motion, Exercise 3: EXERCISES
Attempt the practice questions on Chapter 13: Time and Motion, Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Learning Elementary Science for Class 7 solutions are prepared by Experienced Embibe Experts.
Questions from V K Sally and S K Aggarwal Solutions for Chapter: Time and Motion, Exercise 3: EXERCISES with Hints & Solutions
The gap between two events is called time
Sand clock works only during day time.
A decade is times smaller than a century.
Digital watches use pendulum as timing device.
Balance wheel is used in stop watches.
The gap between two events is called time. In earliest days solar day was taken as unit of time. Later one man switched on devices such as sundials and sand clock. Now these days different types of clocks such as wall clock, wrist watch, stopwatch, digital watch etc., are available to measure time period. Mahesh wanted to know its basic principle and significance, so he contacted his friend Sudhir. Sudhir explained its details and significance properly.
Answer the following question based on above information:
What are the values displayed by Sudhir?
The gap between two events is called time. In the earliest days, the solar day was taken as the unit of time. Later one man switched on devices such as sundials and sand clocks. Now these days different types of clocks such as wall clocks, wristwatches, stopwatches, digital watches, etc., are available to measure the time period. Mahesh wanted to know its basic principle and significance, so he contacted his friend Sudhir. Sudhir explained its details and significance properly.
Answer the following question based on the above information: How does sundial work? Can it show the time during the night?
The gap between two events is called time. In the earliest days, the solar day was taken as the unit of time. Later one man switched on devices such as sundials and sand clocks. Now in these days different types of clocks such as wall clocks, wrist watches, stopwatches, digital watches, etc., are available to measure time period. Mahesh wanted to know its basic principle and significance, so he contacted his friend Sudhir. Sudhir explained its details and significance properly.
Answer the following question based on the above information: What is the solar day? Into how many parts a solar day has been divided to make an hour?
