Skip to main content

Motion and Time class 7 science extra questions

Motion and Time class 7 extra questions

Motion and Time class 7 extra questions
Download class 7 science extra questions


1. Answer the following

  • What is the S.I unit of measurement for speed.
  • What is a pendulum bob’s resting position called?
  • What is the posture of the body called when it does not alter in relation to its surroundings?
  • Name a device that measures the vehicle’s speed.
  • Name a device that measures a vehicle’s distance traveled.
  • What is the amount of time it takes a pendulum to complete one oscillation called?
  • What is a pendulum’s metallic ball called?
  • Name the material in which the crystals vibrate at an extremely rapid and accurate pace.
  • Name a timepiece that uses the shadow of a pointer cast by the sun on a graded plate to display the time.
 

2. State True/False:

  • A speedometer is an instrument to measure a vehicle’s speed at a particular speed.
  • The speed of a car is always uniform.
  • The kilometer is the SI unit of distance.
  • Speed is a vector quantity.
  • The speed of light is always faster than sound.

3. Match the following:

‘A’              ‘B’
One kilometer 100 years
Odometer 1000 m
One hour   Vehicle’s speed
A century 3600 s
Speedometer Total distance covered



Comments

Popular posts from this blog

Online cbse coaching class for 11 Mathematics

Online cbse Class 11 maths : Online coaching classes for 11 maths  and for other subjects. We are here to solve students problem instantly, So that they can improve himself/herself. One to One Correspondence and Equivalent Sets Suppose the members of the family are dinning and plates are prepared on the table then there is a One to one correspondence between the set of family members and the plates prepared. We will indicate this correspondence by the symbol If each element of a set A is associated with one and only one element of a set B and each element of B is associated with one and only one element of set A, then the sets A and B are said to be in one to one correspondence. If both the sets are finite and if they are in one to one correspondence, it is obvious that they have the same number of elements. If two sets have the same number of elements, they are said to be equivalent sets. Using symbol, we write A B. Between two equivalent sets, a one to one corr...

Best Sample papers for Bank PO Exam Download

Sample papers for Bank PO Exam | Question Paper for Bank PO : Institute of banking Personnel Selection (IBPS) Department issued a Notification of IBPS PO 2017  exam announced in October month. IBPS Probationary Officer (PO) Online Application Form process will be begin from July 2017. This is a hard exam for all students so aware of its value. Large number of  candidates will participate in this exam. So all candidates should prepare well for it. Check out IBPS, Bank PO Sample papers, Question Paper Pattern, SBI  PO Syllabus ,   IBPS Syllabus  and other IBPS PO Preparation 2017 This paper is identical to any Bank PO Question Paper Pattern. Check whole IBPS Bank “PO question paper” subject wise. IBPS (PO) Paper Pattern Analysis with Syllabus and main topics of IBPS Exam 2017. PO Question Paper Pattern, Bank PO sample Papers for IBPS Bank Exam IBPS PO Exam will be conducted at three levels 1st- PO Preliminary Exam 2nd- PO Mains Exam 3rd- PO Common ...

What is the difference between human and physical capital

Difference between human and physical capital Human capital refers to a worker's abilities, education, ability, and other attributes that influence his or her productive capacity and earning potential. Physical capital Presence of trade barriers lead to mobility restriction. Process of formation is economic and technical. Physical capital is separable from the owner. Possibility of trading physical capital in the market exists. Continuous use leads to depreciation. Financial statements are present. Human capital Culture and nationality lead to mobility restriction. Process of formation is conscious and social process. Human capital is not separable Services rendered by the human capital can only be sold. Ageing leads to the depreciation but it can be minimized up to some extent. Financial statements are absent. Click to know for Importance and Impact of human capital on economic growth Tag - class 9 social science , class 9 economics, Human capital meaning, school online classes