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26 Cards in this Set
- Front
- Back
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kinetic energy is |
moving energy |
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potential energy is (more than one answer) |
stored energy elastic potential energy gravitational energy |
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heat flows from areas of |
high temperature to low temperature |
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which object has elastic potential energy 1. a bow about to fire an arrow 2. a non moving object 3. a ball that is dropping after being thrown |
1. a bow about to fire an arrow |
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energy increases as we move from left to right in the electromagnetic spectrum (T/F) |
true |
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higher energy waves have a greater frequency but smaller wavelengths (T/F) |
true |
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transparent objects transmit color (T/F) |
true |
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opaque objects reflect and absorb light (T/F) |
true |
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translucent objects transmit some light (T/F) |
true |
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dyes are substances that absorb some colours and reflect others (T/F) |
true |
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which option best describes the energy transformation when you are using a phone: 1. electrical energy to sound energy + light energy + heat energy 2. electrical energy to sound energy + light energy 3. chemical energy to sound energy + light energy + heat energy |
1. electrical energy to sound energy + light energy + heat energy |
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the visable spectrum is: |
the electromagnetic radiation we can see |
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what is the difference between high pitch sounds and low pitch sounds |
a high pitch has a higher frequency while a low pitch has a lower frequency |
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name the two types of sound waves |
longitudinal and transverse |
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difference between longitudinal and transverse |
longitudinal: moves side to side transverse: moves up and down |
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convex lenses can be used in: |
microscopes telescopes cameras some eyeglasses |
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concave lenses can be used in: |
flashlights some eyeglasses binoculars peepholes |
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what is the law of conservation of energy |
energy cannot be created or destroyed but only changed from one form into another or transferred from one object to another |
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define wavelength |
the wavelength is the distance between two peaks of the sound wave |
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define frequency |
the frequency is how fast the sound wave vibrates or goes up and down |
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define amplitude |
the wave’s loudness depends on the strength or amplitude of the vibrations |
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what are the units for the frequency of a wave |
hertz |
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how does the frequency of a wave effect the sound |
the frequency of a wave effects the pitch we hear |
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how does the amplitude of a wave effect the sound |
the amplitude affects the volume as a bigger vibration makes a louder sound |
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an echo is sound being: |
an echo is sound being reflected |
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the angle of incidence always equals: the angle of |
the angle of incidence always equals: the angle of reflection |
