Small Group 5/12

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Physics

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8th Grade

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Christina Ricks

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14 Slides • 10 Questions

Small Group 5/12

Mrs. Ricks

Reminders

Temporary zeroes (*0s) will go in on Friday morning for ALL unfinished lessons
I sent out a webmail yesterday that contains recording that go over your portfolios question-by-question
There is also a recording that goes over your Unit 4 test, question-by-question
Remember to ask for resets, if needed!
12 school days left, including today!!!

What is a wave?

A wave is a disturbance that transfers energy from one location to another

Multiple Choice

Sound does not travel in space because

Space is too far away.

There is no matter in space.

Space is the final frontier

Space has planets.

Multiple Choice

What type of wave is this?

Electromagnetic

Mechanical

Both Electromagnetic and Mechanical

Multiple Choice

What property of this wave is represented by the letter "A"

amplitude

crest

trough

wavelength

Electromagnetic Spectrum

Electromagnetic radiation is energy that travels in waves across space as well as through matter
Characterized by certain wavelengths & wave frequencies
Wavelength = distance between 2 corresponding points on adjacent waves
Wave frequency = # of waves that pass a fixed point in a given amount of time
Shorter wavelength = higher frequency

Multiple Choice

Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy

Radio waves

Ultraviolet Rays

Gamma Rays

X-rays

Multiple Choice

Which electromagnetic wave can you see?

Gamma ray

Microwave ray

Visible light

X-ray

Multiple Choice

The energy of waves _______ as the wavelength gets shorter.

increases

decreases

stays the same

Multiple Choice

What is the number of waves that pass a point in one second?

Amplitude

Frequency

Period

Wavelength

Next week...

We will talk more about visible light.

Wave Speed

The speed of a wave is equal to the frequency * wavelength

Multiple Choice

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

500 m/s

50 m/s

5 m/s

0.5 m/s

Multiple Choice

One end of the rope is vibrated to produce a wave with a wavelength of .25 m. The Frequency of the wave is 3.0 Hz. What is the speed of the wave?

3.00 m/s

2.50 m/s

.75 m/s

1.25 m/s

Multiple Choice

What is a medium?

something between a small and a large?

the substance through which a wave can travel

a pattern of vibration that simulates when a wave is standing still

the distance from any point on a wave to an identical point on the next wave

Small Group 5/12

Mrs. Ricks

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