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Sci. Ch 9 Unit Test

Physical Science Chapter 9 Unit Test

QuestionAnswer
What is the angle when light hits a mirror. A. Angle of incidence
What is the angle when light bounces off a mirror. B. Angle of Reflection
What is between angle of incidence and angle of reflection. C. Normal
How is Angle of incidence equal to angle of reflection. A. = B. they are at the same angle.
Do you know your Vocabulary. BETTER KNOW IT 0_0
Wavelength measurement is meter (m)
Frequency its measurement is Hertz (Hz)
Wave speed measurement is meters per second (m/s)
In a standing wave the point at which the medium doesn’t move is called the______. Node
If an obstacle is much larger than the wavelength of a wave almost no_______occurs. Diffraction
When you shake a rope up and down you create a_______wave. Transverse wave
What part of the earth crust breaks when________pass through the earth. Seismic waves
In a given medium as the frequency of a wave increases its_________. Speed increases
How do particles move differently in transverse waves and in surface water waves? Transverse waves move up and down perpendicular to the direction of the wave and surface waves move in a circular up and down motion.
A student holds a metal bar and strikes it with a hammer. A. In a direction that is parallel to its length. B. Is a direction of right angle to its length and what kind of angle is produced in each case. A. Compressional Wave B. Transverse waves
Why don't all loud sounds cause glass objects to break? To make sound break the glass. Sound has to be at the glasses natural frequency.
A light wave passes at an angle through a chunk of glass into the air. What happens to it in respect to normal? Why It goes from slow to fast and refracts away from the normal.
In a standing wave what kind of interference is producing the crest and the nodes. Constructional wave forms between the crest and distructional waves forms between the crest and the trough which form the node and cancels the wave out.
What is at the top of waves called A. Crest
What is at the Bottom of waves called B. Troughs
What is length from the Crest of a wave to the middle line called C. Amplitude
What is it called when you measure a wave form Crest to Crest or when you measure Trough to Trough. D. Wavelength
A sound wave with a frequency of 100Hz has a wavelength of 100m. What is the speed of the wave? S = 100Hz x 100m s = 10,000m/s Don't forget to put m/s.
According to safety engineers working on hearing protection a jet engine at 10% of full power can generate 13 decibels of sound. Based on this data (50% = 100 decibels) how much sound would the engine make at 60% power. If you know the answer put in the google class room because I didn't get it.
The table shows a setup for recording the result of the experiment. Which of the following is the hypothesis for this experiment. Tuning forks have resonant frequencies
According to the diagram of this tower, long wavelengths are____. Defract around objects than do short wavelengths
When two waves hit each other they____. Cancel each other out and their is just a flat line.
The glass prism is able to bend light because Light is refracted when it enters a different medium.
Which of the following is a transverse wave. The ocean wave is approaching the shore.
(A person yelling and a ship.) Which of the following is present in both drawings. Compressional wave
Which of the following would have the least effect on an experiment exploring an object's resonance frequency. The lighting conditions.
Created by: P.V.A.
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