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science
test
| Question | Answer |
|---|---|
| What term describes the number of waves passing a point during a certain period of time? | Frequency |
| How does the distance between crest and trough relate to the amplitude? | It is twice the wave’s amplitude. |
| What measurment is usually determined by measuring the crest of one wave to the crest of another wave? | Wavelength |
| A wave pulse occurs at a certain point in three seconds. Which property of the wave can be measured? | Frequency |
| What property of a sound wave is a sound’s volume related to? | Amplitude |
| Which property of a sound wave is related to the pitch of the sound? | Frequency |
| Through which media do waves travel most slowly? | Air |
| What does the speed the sound will travel relate to? more=faster less=slower | Density |
| When a mechanical wave travels from its source, the wave’s energy decreases. Why? | Amplitude decreases. |
| What wave is not considered a mechanical wave? | A light wave. |
| What type of wave is a light wave? | An electromagnetic wave. |
| Why is light not considered a mechanical wave? | A light wave travels through the vacuum of space. |
| How is an electromagnetic wave different from a mechanical wave? | An electromagnetic wave can travel through a vacuum, but a mechanical wave cannot. |
| Why does light reflect on some objects and is absorbed by another? | The objects are different materials. |
| What will light do as it crosses from air into glass? | It will bend. |
| What property does reflection and absorption depend on? | Material of an object and the frequency of the light. |
| What property of light would provide evidence for the idea that light is a wave? | Color |
| Brightness, frequency and color support what idea about light? | Light is made up of waves. |
| What property of light is bending dependent? | The frequency of the light. |
| What is a repeating disturbance that transfers energy from one place to another called? | A wave. |
| In what direction does a wave transfer energy? | The direction that the wave travels. |
| What is it called when a wave’s energy is transferred only one time? | A wave pulse. |
| When is a wave formed? | If the disturbance transfers energy in a repeating pattern. |
| How do particles of a medium move as a wave travels through it? | They vibrate. |
| What direction does a transverse wave travel in? | Up and down. |
| What direction does a longitudinal wave travel in? | Left and right. |
| What kind of wave causes more damage? | Transverse wave. |
| What kind of wave travels faster? | Longitudinal wave. |
| What is amplitude? | Half the distance between the crest and trough. |
| What is wavelength? | The distance from any point on a wave to an identical point on the next wave pulse. |
| What is wavelength measured in? | Meters |
| What is frequency measured in? | Hertz |
| What is frequency? | The number of waves produced in a set amount of time. |
| What is wave speed? | The rate at which a wave travels. |
| What is the equation for wave speed? | w • f = ws |
| What part of a wave is dependent on energy? | The amplitude. |
| How does a wave transfer energy from one place place to another? | Through particles. |
| What is a medium? | A material through which energy travel. |
| What kind of wave is a sound wave? | A longitudinal mechanical wave. |
| What happens as a wave expands outward from the initial disturbance? | Amplitude decreases. |
| What is transmission? | When a mechanical wave moves through a new medium. |
| What behavior occurs when a sound echos off a wall? | Reflection |
Created by:
csegreti