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8th Science Edgen---
8th Waves Edgenuity
| Question | Answer |
|---|---|
| Which two animals use echolocation? | bats and dolphins |
| An ultrasound tech is trying to identify an object, but the screen of the machine is broken. Which statement best describes this situation | The machine will not be able to process the received echoes into images. |
| What do digital signals turn sounds into? | zeros and ones |
| Which best describes the order of the technology used to transmit a sound through the radio? | microphone -> transmitter -> raidio |
| Sound Waves are produced when something does what? | vibrate |
| Describe how sound waves are produced and how they travel. | Medium |
| Identify the features of a sound wave. | Wave A has a higher amplitude than Wave B |
| Sound Wave A is moving through a medium wave that is decreasing in temperature. Sound Wave B is moving from a liquid to a gas medium. What statement can be made about both waves | They will slow down |
| What best describes what occurs when an object takes in a wave as the wave hits it. | absorption |
| What do diffraction and refraction have in common? | They both involve waves interactions |
| What is occurring when two waves traveling along the same medium meet and cancel each other out? | destructive interference |
| What will occur when the trough of Wave A overlaps the crest of Wave B? | Destructive interference will occur, causing the new wave to have less energy than Wave A or Wave B |
| Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm vertical distance from the trough to the crest. Which best describes the energy in Henri and Geri's waves? | Henri's wave and Geri's wave have the same amplitude, but Geri's has more energy. |
| What refers to the number of wavelengths that pass a fixed point in a second? | frequency |
| Which equation should be used to calculate the speed of a wave? | speed = frequency x wavelength |
| The frequency of a wave does not change as it passes from one medium to another. What will most likely happen if a light wave moves from the air into a solid? | The speed of the light wave will decrease |
| How does waves carry energy? | Energy moves from one place to another through the wave |
| Which types of waves requires matter to carry energy? | mechanical waves only |
| What statement can most likely be made about the shock waves of atomic bombs? | They are a mechanical waves |
| What is an example of a transverse wave? | a crowd doing the wave at a sporting event. |
Created by:
cromine