Unit 9 Jeopardy Review

Vocabulary

100

Question 1a. 

The material in which a Wave travels through is called a ____________.

Medium

200

Question 1b.

The number of waves that occur in one second is called the _____________.

Frequency

300

Question 1c.

A _____________ is a part of a longitudinal wave where the particles are spread far apart.

Rarefaction 

400

Question 1d.

____________ is where an object moves back and forth repeatedly about a center point.

Harmonic Motion

500

Question 1e. 

A _____________ is a type of wave where the particles oscillate parallel to the direction of the wave.

Longitudinal Wave

Parts of a Wave

100

Question 2a.

The highest point on a transverse wave is called the _______.

Crest

200

Question 2b.

The distance from the mid-line to the crest is called the _____________.

Amplitude

300

Question 2c. 

A ____________ is a point on a longitudinal wave where the particles are clumped together.

Compression

400

Question 2d.

The distance between two compressions is called the ___________.

Wavelength

500

Question 2e.

Describe how you measure the wavelength of a transverse wave.

The distance between two crests or the distance between two troughs.

Wave Equation

100

Question 3a. 

The velocity of a sound wave is 343 m/s. If the sound wave has a wavelength of 10 meters, what is the frequency of the wave? (v = f x λ)

34.3 hz

200

Question 3b.

The speed of light is 299,792,458 m/s. What is the frequency of light if it has a wavelength of 0.0007 m? (v = f x λ)

428,274,940,000 hz

300

Question 3c. 

What happens to the frequency of a wave, if you were to increase its wavelength?

If the wavelength increases, the frequency decreases 

400

Question 3d. 

What is the velocity of a wave if its frequency is 15 hz and its wavelength is 6 meters?

90 m/s

500

Question 3e. 

What would happen to the velocity of a wave if you were to increase its frequency?

Velocity would not change. Wavelength would decrease causing the velocity to stay the same.

Tectonic Plates

100

Question 4a.

Explain how mountains are evidence of tectonic activity.

When two tectonic plates collide, it causes the crust to thicken and push upwards, creating mountains.

200

Question 4b.

Describe how fossils are evidence of tectonic activity.

Identical fossils were found on multiple different continents which suggests that the continents were once connected.

300

Question 4c.

Describe how plant fossils are evidence of plate tectonics.

Arctic plant fossils were found in a desert in Africa. This suggest that the African plate was once much lower in longitude so that it had an Arctic environment.

400

Question 4d. 

Explain how diamonds support the theory of plate tectonics.

Diamonds act as a time capsule by carrying small rocks inside them. When we find diamonds in the Earth's mantle, they sometimes contain surface rocks inside them. This shows that the diamonds somehow moved from the Earth's surface to the mantle.

500

Question 4e. 

Describe what "continental fit" is and how it supports the theory of plate tectonics 

The continents fit together like puzzle pieces which suggests that they were once connected.