Magic Letter Magic Word Vocabulary review Magic Letter

Magic Letter, Magic Word Vocabulary review

Magic Letter N • Point of zero amplitude on a standing wave • Has no pleasing patterns

Magic Letter A • Maximum distance a transverse wave travels from rest position • Maximum amplitude on a standing wave

Magic Letter F • Number of complete waves that pass a given point in a certain amount of time

Magic Letter W • Disturbance that transfers energy from place to place • Distance between two corresponding parts of a wave

Magic Letter M • Material through which a wave travels • Waves that require a medium to travel • Set of notes combined a pleasing pattern

Magic Letter T • Waves that move medium at right angles to direction of wave’s motion • Low point on a transverse wave

Magic Letter L • Waves that move medium parallel to direction of wave’s motion • Perception of energy of a sound • As the energy of a sound increases, the ______ also increases

Magic Letter C • When the particles of medium are close together in a longitudinal wave • High point of a transverse wave • Type of interaction where two waves meet and produce a higher amplitude

Magic Letter R • When particles of a medium are spread out in a longitudinal wave • When an object or wave hits a surface it can’t pass and bounces back • Bending of waves due to a change in speed • Occurs when one object causes a nearby object to vibrate at a natural frequency

Magic Letter U • Frequencies that are above the normal human range

Magic Letter E • Reflected sound wave • Waves that do not require a medium to travel • Ability of a medium to bounce back after being disturbed

Magic Letter S • How far a wave travels in a given length of time • Disturbance that travels through a medium as a longitudinal wave • Produced if the incoming wave and reflected wave have just the right frequency.

Magic Letter D • Unit used to compare loudness of sounds • When a wave moves around a barrier or through an opening in a barrier, it bends and spreads out • Type of interaction that occurs when two waves meet and create a smaller amplitude • The reason why a siren sounds differently as it moves towards you and then as it passes you.

Magic Letter I • The following are types of ______ – Reflection, refraction, diffraction, standing wave, interference • When two waves meet • Frequencies below the normal human range • Amount of energy a sound wave carries per second through a unit area

Magic Letter P • The following are ______ of waves – Amplitude, frequency, wavelength, and speed • How high or low a sounds seems

Magic Letter H • Patterns of standing waves

Interaction Practice

• You can hear your friend talking about your surprise birthday party from around a corner.

• While in the bath a baby makes a wave by splashing and after the wave hits the side of the tube it comes back towards her.

• Two speakers are put just the right distance from each other so that when both speakers are on the music being played is louder than when only one speaker is on. •

• The two speakers in #3 are now moved and sometimes when you walk in front of them the music being played is softer than when only one speaker is on.

• There is a narrow opening to a bay and when the waves from the ocean pass through it they bend into a circular shape.

• If you shout towards a tall, far away cliff you hear an echo.

• A spoon in a glass of water looks bent where the water meets the air.

• You probably looked at yourself in a mirror sometime today and saw a reflection of yourself.

Electromagnetic Spectrum

Define electromagnetic spectrum

List the order of the electromagnetic spectrum from in increases frequency

What is the energy called that electromagnetic waves carry?

How are electromagnetic waves different than mechanical waves?

Light

What three things can happen when light strikes an object?

How would a tomato look under blue light?

What are the primary colors of light?

What type of reflection creates a blurry image? Why?

When you mix the primary colors of pigments what color results?

What type of mirror is this? What type of image is formed? What type of image would form if the object is moved between the focal point and the mirror?

What type of lens is this? What type of image will it form?