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15
×
what is similar about the formula for Hcl and sodium chloride?
Chlorine
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15
×
Of all the mediums in which light travels the fastest
Air
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5
×
The metal lithium is missing from the reactivity list, suggest where it should be placed
Most reactive
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15
×
Why does a red rose appear red
All the colours are absorbed except red which reflects back to our eyes
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15
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Can silver displace the magnesium in magnesium sulphate?
No
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trap
No points!
Oops!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 5 points!
Oops!
15
×
State the law of reflection
Angle of incidence = Angle of reflection
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15
×
What are the primary colours of light?
Red, Green and Blue
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15
×
Advantages of parallel circuit
Each component can work independently
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seesaw
Swap points!
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seesaw
Swap points!
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rocket
Go to first place!
Okay!
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baam
Lose 20 points!
Oops!
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banana
Go to last place!
Oops!
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gift
Win 25 points!
Okay!
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fairy
Take points!
5
10
15
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25
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banana
Go to last place!
Oops!
15
×
What is refraction?And why it happens
bending of light, Change in direction due to change in speed when entering a different medium
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lifesaver
Give 25 points!
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gift
Win 5 points!
Okay!
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gift
Win 25 points!
Okay!
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thief
Give points!
5
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15
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25
15
×
State ohms law
V = IR
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15
×
Draw 2 how 2 sound waves must meet in order to reinforce
constructive
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15
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Difference between resistor and a variable resistor
Variable- you can control the resistance
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