Objection! Sustained?
What is equilibrium?
describes the state of an ecosystem with relatively constant conditions over a period of time.
I need a molecules that share. What sort of molecule should I pick?
Covalent Molecule (two non-metals)
Neutron Stars are made of...
Neutrons
What type of elecricity is created from tape being pulled away from an object?
Static
What keeps a satellite from crashing to the ground?
What percent of energy is spread from one trophic level to another trophic level?
10%
What happens to the freezing point of a substance if it becomes impure?
decreases
In which region of the Sun do nuclear fusion reactions take place?
core
Glass is a type of...
insulator
Shape of Milky Way is...
Spiral Galaxy
Why are invasive species a problem?
ecological damage and spread
What is a cation?
an ion with a net positive electrical charge.
Will we be able to observe the death of a start that is 2x size of our star? Why?
Yes, faster fusing, quicker death.
Adding fourth appliance to a powerstrip. What will hapen to the other appliances? Why?
What causes two low tides?
moon pulling the near-side ocean and Earth more than far-side ocean
What makes pesticides accumpulate in the body?
Water has a density of 1g/mL. What would happen to the density if water became a solid?
decreases
Highest energy wavelenght has...(bonus points for what electromagnetic spectrum this is)
shortest wavelenght(gamma rays)
When ballon is rubbed against human hair what would the charges of the objects look like?
negative baloon, positive human hair
the thoertical temperature does not include the atmoshphere and its thickness
What type of succession happens after a tornado?
Secondary
Valance shells of noble gasses have....
the maximum amount of electons.
Why is iron the last stage of the sun?
fusing iron into heavier elements absorbs energy rather than releasing it. It acts like an energy sponge instead of a fuel,
A battery in a series circuit has 25 V(voltage). There are 3 loads with total resistance of 10Ω. Calculate the current in this circuit.
2.5
Sirius, the brightest star in the night sky, has a luminosity of 22. This means that Sirius has...
(a) has an apparent magnitude 22 times greater
than the Sun's
(b) gives off 22 times more energy than the Sun
(c) developed 22 years before the Sun
(d) is 22 times farther from Earth than the Sun
gives off 22 times more energy than the Sun