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Pregunta
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Respuesta correcta
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Is an oscillation or vibration that transfers energy or information :
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wave |
Wave the oscillation is parallel to the direction of the wave :
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longitudinal |
Is the number of waves that go past a particular point per second :
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frequency |
Is a longitudinal wave :
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sound |
The distance sound travels in one second :
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speed of sound |
Is how measure sound intensity :
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decibels |
The speed of sound in air is :
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340 M/S |
The range of frequencies you can hear is called :
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audible range |
Needs a medium to travel through :
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sound |
What kind of audible range have the Elephants :
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infrasound |
What kind of audible range have the Bats :
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ultrasound |
Sound travels fastest in :
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solids |
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Pregunta
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Respuesta correcta
|
Sound travels slowest in :
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gases |
Frequency is measured in :
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hertz |
The loudness of a sound depends on :
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amplitude |
The pitch of a sound depends on :
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frequency |
speed of _______is faster than speed of________ :
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light/sound |
Waves can ________ when hit a barrier and cancel out or add up when they _______ :
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reflect/superpose |
Parts of a wave :
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1crest---2trough---3wavelenght---4amplitude |
Calculate the weight of a person who has a mass of 60 Kg :
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588n |
Calculate the weight of a vehicle that has a mass of 300 kg :
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2940 |
You can measure force with a :
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newtonmeter |
Air and water resistance :
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drag forces |
A substance that reduces friction :
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lubrication |
When the forces in a system are balanced they are in :
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equilibrium |
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