Main topics...
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How is the Periodic Table arranged? | In rows and columns.
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| IF there are 5 protons how many electrons are there? | 5 electrons.
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| If the atomic mass is 96, and there are 42 protons, how many neutrons are in this element? | 54 neutrons.
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| What two subatomic particles are the same number as each other? | Protons and Electrons.
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| What subatomic particles are negatively charged? | Electrons.
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| What does the Bohr model show? | How many levels the atom has
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| If someone is doing an experiment and bubbles show up, what type of change is it? | Chemical
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| When sugar dissolves is it a physical or chemical change? Why | Physical because it is still there.
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| What elements are in H2O | 2 hydrogen and 1 oxygen
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| What does the law of conservation of mass say? | It says that the product and the reacants are balanced.
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| If it takes a star's light 600 years, how many light years is it? | 600 light years.
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| Can light travel through a black hole? | NO.
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| Fill in the blank... blue ___, red____. | you, fled
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| If a frequency is fast,what type of shift is it? And Why? | Blue, because the blue shift is closer to "you"
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| On the spectra what color goes with the number 400? And 700? | Blue, red
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| When travelling up a rollercoaster, what type of energy do you have? | Potential.
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| What is the next stage after potential energy? | Kinetic.
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| How do astronomers use the electromagnetic wave? | To measure the temperature, what the star is made of
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| What type of stars are there? | White dwarfs, main sequence, giants, supergiants
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| What TWO things does the HR diagram show? | Magnitude or brightness, and temperature.
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| What category is our sun in? | Main sequence.
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| How are main sequence stars classified? | temperature and magnitude/ brightness
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| if there is 20 N to the left and 25 N to the right which way will it go? | to the right
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| What is the equation of force? | force=mass x acceleration
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| WHat is velocity? | Speed time and direction
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| What is speed? | miles per hour
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