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| An object that allows all light to pass through it is called _____ |
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| Unless a force acts on them, objects in motion tend to _____ |
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| In a parallel circuit there is _____ pathway(s) for the current to flow |
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| The _____ of sound is the distance between compressions |
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| Light that bounces off another object is _____ |
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| the resistance to motion created by two objects moving against each other |
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| Materials that do not conduct electricity are _____ |
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| Sound must travel through _____ |
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| How do musical instruments produce sound? |
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Definition
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| What determines the pitch of a sound? |
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Definition
| the frequency of the vibrations |
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| Name three common forms of energy. |
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Definition
| electrical, mechanical, chemical |
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Term
| _____ circuits allow the movement of electric energy |
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| What happens when static electricity is discharged in the atmosphere? |
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| Light travels _____ than sound. |
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| What kinds of machines are made by any combination of two or more compound machines? |
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| What are volts and amperes used for? |
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| What form of energy is produced and transmitted by vibrations? |
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| Which state of matter allows sound to travel the fastest? |
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Definition
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| An object that allows some light to pass through it is called _____. |
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| What is the result of a force moving on an object through a distance? |
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Term
| In a magnet the lines of force extend from the _____ in an arched pattern. |
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| What does the continuous flow of negative charges create? |
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| Light that bends is _____ |
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| What is produced by friction? |
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Definition
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Term
| In a series circuit there is _____ pathway(s) for the current to flow |
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| The _____ of sound is the number of vibrations in a given amount of time |
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Definition
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Term
| What colors are represented in the white light we see? |
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Definition
| red, orange, yellow, green, blue, indigo, violet |
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| What kinds of machines are made by a combination of two or more simple machines? |
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Definition
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| _____ circuits prevent the movement of electric energy. |
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Definition
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Term
| Benjamin Franklin and Thomas Edison made important discoveries in what area of science? |
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Definition
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Term
| Why does sound travel the slowest through gases? |
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Definition
| the molecules are the farthest apart |
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Term
| A prism is used to _____ light |
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Definition
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Term
| What are the two states of energy? |
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Definition
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Term
| What is the pathway taken by an electric current? |
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Definition
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| Rubbing certain materials together produces _____ |
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| What is determined by the frequency of a vibrating object? |
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Definition
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| An object that allows no light to pass through it is called _____ |
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Definition
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Term
| What is the ability to do work? |
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Definition
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Term
| Unless a force acts on them, objects at rest then to _____ |
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Definition
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Term
| What metal must be present for a magnet to work? |
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Definition
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Term
| Light is different than sound because it does not need _____ to travel |
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Definition
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| What word means the relationship of energy put out to accomplish work? |
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| Materials that allow the flow of electricity through them are called _____ |
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