2004 Plano ISD Plano TX 2004 Plano ISD

  • Slides: 20
Download presentation
© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

During every waking and sleeping moment of our lives, we are bombarded with of

During every waking and sleeping moment of our lives, we are bombarded with of energy. © 2004 Plano ISD, Plano, TX

Most energy waves collide with us or pass right through us without any notice

Most energy waves collide with us or pass right through us without any notice on our part. © 2004 Plano ISD, Plano, TX Waves carry energy, but not matter. However, matter can be used to transfer energy.

Waves that use matter to transfer energy are mechanical waves The matter used to

Waves that use matter to transfer energy are mechanical waves The matter used to transport the wave is called a medium. What is the medium? © 2004 Plano ISD, Plano, TX

What is the medium? © 2004 Plano ISD, Plano, TX

What is the medium? © 2004 Plano ISD, Plano, TX

What is the medium? © 2004 Plano ISD, Plano, TX

What is the medium? © 2004 Plano ISD, Plano, TX

In the 15 th century, Leonardo da Vinci observed that while waves move, the

In the 15 th century, Leonardo da Vinci observed that while waves move, the medium (water) does not, “like the waves made in a field of grain by the wind, where we see the waves running across the field while the grain remains in place. ” © 2004 Plano ISD, Plano, TX

Water, sound, and earthquake waves are examples of mechanical waves. © 2004 Plano ISD,

Water, sound, and earthquake waves are examples of mechanical waves. © 2004 Plano ISD, Plano, TX

Mechanical waves can be classified according to the direction of the motion of matter

Mechanical waves can be classified according to the direction of the motion of matter in relation to the direction of wave motion. © 2004 Plano ISD, Plano, TX

Mechanical waves in which matter moves up and down or back and forth at

Mechanical waves in which matter moves up and down or back and forth at right angles compared to the direction of wave movement are transverse waves. Click here to see transverse waves in action! © 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

© 2004 Plano ISD, Plano, TX

Mechanical waves in which medium matter moves forward and backward in the same direction

Mechanical waves in which medium matter moves forward and backward in the same direction the wave travels are longitudinal or compressional waves. Click here to see compressional waves in action! © 2004 Plano ISD, Plano, TX

Waves that do not require matter to transfer energy are electromagnetic waves Electromagnetic waves

Waves that do not require matter to transfer energy are electromagnetic waves Electromagnetic waves can travel through a medium, but they can also travel in space or through a vacuum. © 2004 Plano ISD, Plano, TX

Radio waves, X-rays, microwaves, and visible light waves are examples of electromagnetic waves. They

Radio waves, X-rays, microwaves, and visible light waves are examples of electromagnetic waves. They can all travel through empty space and they all travel at the same speed. This speed is sometimes called The Speed of Light. © 2004 Plano ISD, Plano, TX

Review the information on waves by filling in the concept map. © 2004 Plano

Review the information on waves by filling in the concept map. © 2004 Plano ISD, Plano, TX

energy Waves transfer or carry matter do not move or carry can be classified

energy Waves transfer or carry matter do not move or carry can be classified into two categories mechanical waves include examples such as electromagnetic waves are further classified into are a special type of transfer energy through matter called a medium ____ longitudinal or compression waves transverse waves move matter forward and backward in the same direction of wave movement matter up and down or back and forth at right angles compared to the direction of wave movement includes solids, liquids, gasses do not require matter to transfer energy include examples such as

Bibliography Macaulay, David. (1988). How things work. Boston: Houghton Mifflin Company. pp. 186 Resnick,

Bibliography Macaulay, David. (1988). How things work. Boston: Houghton Mifflin Company. pp. 186 Resnick, Halliday, Krane. (1992). Physics. 4 th Edition, Volume 1. New York: John Wiley & Sons, Inc. pp. 417 -418. “What are waves? ” (2002). Texas Science. New York: Glenco Mc. Graw-Hill, pp. 186 -187. © 2004 Plano ISD, Plano, TX