ISHA PRESENTATION science types of waves.pdf

waves

1. BANYAN TREE SCHOOL
JAGDISHPUR AMETHI
SEMINAR TOPIC
WAVES
SUBMITTED TO
MR. MANOJ SRIVASTVA
(HOD,PHYSICS
DEPARTMENT)
UNDER THE
SUPERVISION OF
MR. ALOK MISHRA
SUBMITTED BY
ISHA MAURYA

2. CONTENT
INTRODUCTION
CLAFFICATION OF WAVES
TYPES OF WAVES

3. What is a wave?
WAVE - a vibration or
disturbance in space.

4. What is a wave?
Waves transfer energy without
transferring matter.

5. How are waves classified?
Waves are classified by WHAT they
move through or by HOW particles
move through them.

6. What material do waves move through?
MEDIUM- the substance that waves
travel through and need to have in
order to move.
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7. Classification of Waves
According to what they move through
(Medium)
Electromagnetic waves
Mechanical Waves

8. Electromagnetic Waves
Waves that can travel through matter or
empty space where matter is not present.

9. Types of Electromagnetic
Waves
radio waves
microwaves
infrared waves
visible light
ultraviolet rays
X-rays

10. Mechanical Waves
Needs a medium
require the particles of the medium to vibrate in order for energy to be
transferred.

11. Types of Mechanical
Waves
water waves
earthquake/seismic waves
sound waves
waves that travel down a
rope or spring

12. Classification of Waves
According to how particles move through them
Transverse waves
Longitudinal Waves

13. Transverse Waves
Particles move
perpendicular to
the motion of the
wave

14. Wavelength
Crest
Amplitude
Trough

15. Wavelength (λ)
The distance from crest to crest
(or trough to trough); expressed in
meters

16. Amplitude (A)
The distance of crest (or trough)
from the midpoint of the wave

17. Longitudinal Waves
particles move
parallel to the
motion of the wave.

18. Longitudinal Waves
Compression- a crowded
area causing a high-
pressure region
Rarefaction- a spread out
area causing a low-
pressure region

19. http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

20. THANK YOU