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15
×
What is the speed of electromagnetic waves in a vacuum?
3Ã10^8 m/s.
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15
×
What happens to the frequency of a wave during refraction?
It remains constant.
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15
×
State the formula for electrical power.
P=IV
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15
×
Define current.
The flow of electric charge.
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15
×
What is the unit of electric charge?
Coulomb (C).
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15
×
What is the difference between series and parallel circuits?
Series: Single path for current. Parallel: Multiple paths.
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boom
Lose 50 points!
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magnet
Take 25 points!
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rocket
Go to first place!
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banana
Go to last place!
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15
×
What property of a wave changes when it enters a denser medium?
Speed and wavelength decrease.
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15
×
Newton (N).
Work done is force multiplied by distance in the direction of the force.
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25
×
State the units for speed, velocity, and acceleration.
Speed: m/s, Velocity: m/s, Acceleration: m/s2 .
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banana
Go to last place!
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rocket
Go to first place!
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rocket
Go to first place!
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banana
Go to last place!
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15
×
What is the unit of resistance?
Ohm (ÎĐ).
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×
monster
Reset all scores!
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magnet
Take 25 points!
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fairy
Take points!
5
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25
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thief
Give points!
5
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25
25
×
Differentiate between transverse and longitudinal waves.
Transverse: Oscillations are perpendicular to wave direction. Longitudinal: Oscillations are parallel to wave direction.
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15
×
What is the unit of frequency?
Hertz (Hz)
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15
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What is the SI unit of force?
Newton (N).
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