Chemistry
What is the charge of an atom with 10 protons, 11 neutrons and 9 electrons.
Positive
This is any change in motion...
What is acceleration?
On an energy pyramid or food chain, what is the original source of all of the energy?
The Sun
Describe our sun...
Average!
What direction does wind blow? (think air pressure, not direction)
From high pressure to low pressure
What is the mass of an element with 18 protons, 23 neutrons and 18 electrons.
What is 41 amu.
How much does an object weigh if 360N of force is applied to it and it accelerates at 12m/sec2...
30kg
Identify the following symbiotic relationship:
fleas and dogs
Parasitism
Where are the hottest stars located on the HR Diagram?
Complete the following statement:
Hot fluids _________ and cool fluids _____________ due to changes in their ____________. Hot fluids are ___________ dense and cool fluids are __________ dense.
Rise, Sink, Density, Less, More
This element would react similarly to oxygen but has an 4 energy levels...
What is selenium?
Define inertia
An object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an unbalanced force.
These are organisms that have the most available energy in the food pyramid/food web.
Autotrophs/ Producers
This is a cloud of gas and dust in space...
What is a nebula?
Draw a speed triangle, force triangle, and density triangle...
...
List out the elements atoms and molecules for the following formula...
2Fe2O3
Elements: 2 (Iron and Oxygen)
Atoms: Iron- 4, Oxygen- 6 (total=10)
Molecules: 2
What is the mass of an object if it takes 100N of force to move an object 4 meters per second2??
25 kg
List 3 abiotic factors that autotrophs compete for...
Answers will vary...
Draw and label a lunar phase model.
Check drawings
List an element from the noble gasses (the least reactive group on the periodic table)
Any of the group 18 elements
This particle determines the chemical properties/reactivity of an element...
What are valence electrons?
What is the velocity of a motorcycle that travels 422.5 miles north in 6.5 hours?
65 miles per hour north
Create an energy pyramid and label the following labels in the correct spots.
Tertiary Consumers, Primary Consumers, Autotrophs, Secondary Consumers, Heterotrophs, Producer, Herbivores & Carnivores
Check answer
Create an HR Diagram and place the following on it...
A- Where hot/bright stars are located
B- Where hot/dim stars are located
C- Where cool/bright stars are located
D- Where cool/dim stars are located
Check illustrations.
Create a bohr model of Cl.
Check drawing