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20 Cards in this Set
- Front
- Back
- 3rd side (hint)
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what is postively charged and made of two protons and two electrons?
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Alpha particle.
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Gamma Beta Aplha
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what are the layers of the earth, from the inner core out?
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Inner Core, Outer Core, Athenosphere, Lithosphere
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no crust or mantle
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what is a convection current?
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Movement due to differences in density and warmth
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a curent is made up of a flow of _______.
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electrons.
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not ions or hamsters
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what is Newtons third law?
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Equal and opposite: for every force there is an equal and an opposite force.
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what two factors affect gravitational force?
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Distance And Mass; both increase gravitaional force.
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Planets to the sun
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A catalyst, shaking and stirring, what do these things do during a chemical reaction?
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they increase the rate of the chemical reaction.
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why do we see phases of the moon?
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because the moon rotates and so do we which causes us to see only one illuminated part of the moon.
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why do we have extra CO2 in the atmosphere?
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Cars, Forest fires, burning of fossil fuels
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why does the Inner core of the earth remain soild even though it is very hot?
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Intense pressure from the rest of the earth.
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what layer of the earth do convection currents occur?
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the athenosphere
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what causes the ring of fire in the pacific ocean? what causes the mid atlantic ridge?
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convergent Boundaries; divergent boundries
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boundary
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define isotope.
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refer to book.
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what was the conclusion for expirment 8.9?
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the half lives
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what is newtons 1st law of motion?
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Inertia: an object at rest remains at rest and an object in motion
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what does a wave carry through matter and space?
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energy
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define Amplitude:
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refer to book.
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a water wave is a mechanical wave , what other wave is a characterized under?
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transverse.
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what is gravitation potential energy?
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energy that depends on height. (mass)(9.8m/s)(height : in meters)
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How large are alpha particles compared to beta particles?
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they are massive.
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