Grade 12 Exam  >  Grade 12 Notes  >  Physics for Grade 12  >  PPT: Physical Quantities, Units and Measurements

PPT: Physical Quantities, Units and Measurements | Physics for Grade 12 PDF Download

Download, print and study this document offline
Please wait while the PDF view is loading
 Page 1


General Physics 
Physical Quantities & Units 
AS level 
 
 
 
 
www.fahadsacademy.com
Page 2


General Physics 
Physical Quantities & Units 
AS level 
 
 
 
 
www.fahadsacademy.com
Quantitative Observations 
What can be measured with the 
instruments on an aeroplane? 
Qualitative Observations 
How do you measure 
artistic beauty? 
Physical Quantities 
Quantitative versus qualitative 
• Most observation in physics are quantitative 
• Descriptive observations (or qualitative) are usually imprecise 
www.fahadsacademy.com
Page 3


General Physics 
Physical Quantities & Units 
AS level 
 
 
 
 
www.fahadsacademy.com
Quantitative Observations 
What can be measured with the 
instruments on an aeroplane? 
Qualitative Observations 
How do you measure 
artistic beauty? 
Physical Quantities 
Quantitative versus qualitative 
• Most observation in physics are quantitative 
• Descriptive observations (or qualitative) are usually imprecise 
www.fahadsacademy.com
Physical Quantities 
• A physical quantity is one that can be measured 
and consists of a magnitude and unit. 
 
SI units are 
used in 
Scientific 
works 
Measuring length 
70 
km/h 
? 
4.5 m 
? 
www.fahadsacademy.com
Page 4


General Physics 
Physical Quantities & Units 
AS level 
 
 
 
 
www.fahadsacademy.com
Quantitative Observations 
What can be measured with the 
instruments on an aeroplane? 
Qualitative Observations 
How do you measure 
artistic beauty? 
Physical Quantities 
Quantitative versus qualitative 
• Most observation in physics are quantitative 
• Descriptive observations (or qualitative) are usually imprecise 
www.fahadsacademy.com
Physical Quantities 
• A physical quantity is one that can be measured 
and consists of a magnitude and unit. 
 
SI units are 
used in 
Scientific 
works 
Measuring length 
70 
km/h 
? 
4.5 m 
? 
www.fahadsacademy.com
Are classified into two types: 
• Base quantities 
• Derived quantities 
Physical Quantities 
Base quantity 
For example : is like 
the brick – the basic 
building block of a 
house 
Derived quantity  
For example : is like 
the house that was 
build up from a collection 
of bricks (basic quantity) 
www.fahadsacademy.com
Page 5


General Physics 
Physical Quantities & Units 
AS level 
 
 
 
 
www.fahadsacademy.com
Quantitative Observations 
What can be measured with the 
instruments on an aeroplane? 
Qualitative Observations 
How do you measure 
artistic beauty? 
Physical Quantities 
Quantitative versus qualitative 
• Most observation in physics are quantitative 
• Descriptive observations (or qualitative) are usually imprecise 
www.fahadsacademy.com
Physical Quantities 
• A physical quantity is one that can be measured 
and consists of a magnitude and unit. 
 
SI units are 
used in 
Scientific 
works 
Measuring length 
70 
km/h 
? 
4.5 m 
? 
www.fahadsacademy.com
Are classified into two types: 
• Base quantities 
• Derived quantities 
Physical Quantities 
Base quantity 
For example : is like 
the brick – the basic 
building block of a 
house 
Derived quantity  
For example : is like 
the house that was 
build up from a collection 
of bricks (basic quantity) 
www.fahadsacademy.com
Definitions :- 
 
 
• Base quantities 
are the 
quantities on the 
basis of which 
other quantities 
are expressed.  
• The quantities 
that are 
expressed in 
terms of base 
quantities are 
called derived 
quantities 
www.fahadsacademy.com
Read More
143 videos|360 docs|145 tests

Top Courses for Grade 12

143 videos|360 docs|145 tests
Download as PDF
Explore Courses for Grade 12 exam

Top Courses for Grade 12

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

Extra Questions

,

Units and Measurements | Physics for Grade 12

,

Objective type Questions

,

past year papers

,

PPT: Physical Quantities

,

Important questions

,

Units and Measurements | Physics for Grade 12

,

Exam

,

Free

,

PPT: Physical Quantities

,

pdf

,

Viva Questions

,

PPT: Physical Quantities

,

shortcuts and tricks

,

video lectures

,

Summary

,

Previous Year Questions with Solutions

,

Sample Paper

,

MCQs

,

mock tests for examination

,

Semester Notes

,

ppt

,

study material

,

Units and Measurements | Physics for Grade 12

,

practice quizzes

;