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15
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Complete:When a piece of wood is put into a fire and starts to burn, ......................energy starts to decrease.
chemical energy.
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15
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How does the solar energy reaches from The Sun to Mars planet?
Radiation
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15
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GR: Energy level "L" is filled with electron before energy level "M".
because "L" has less energy than "M"
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15
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Complete according to the figure: During the process of condensation, the change happens from ...........to...............
c / b
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15
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Which change in state is shown in the diagram?
Melting
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15
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What happens to the K.E when doubling the speed of an object and decrease of the speed to the half
K.E increases to the double.
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15
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Write the symbols of : Lead, Gold, Helium
Pb, Au, He
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15
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Complete: ........................is used for making heating coils, while .....................is used for making jewels.
nickel - chrome / copper- gold
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15
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GR: Ecologist s don't appreciate all the technological application which is used in energy transformation.
Negative effect
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monster
Reset all scores!
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rocket
Go to first place!
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shark
Other team loses 10 points!
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thief
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25
15
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Complete: At the maximum height of the object, the ....................vanished.
K.E
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15
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An atom contains 10 electrons. How many of these electrons occupy the "M" energy level?
zero
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eraser
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gift
Win 15 points!
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gift
Win 20 points!
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thief
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25
15
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What is this element? is it monoatomic or diatomic?
Argon, Monoatomic
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15
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Explain: Solar energy can be changed into other energies.
chemical, kinetic, electric, heat.
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monster
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fairy
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25
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gift
Win 25 points!
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banana
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