Chemistry
This is the particle that identifies an element...
What is a proton?
What is the mass of an object if it has a force of 300N and an acceleration of 6 m/sec2?
50 kg
Determine the force if an 13kg object is accelerating at 15 m/sec2.
195N
This is responsible for earth experiencing changes in seasons...
What is the tilt of the earth?
Draw a waxing crescent...
...
This is the particle that determines an elements chemical properties/reactivity...
What are valence electrons?
Determine the velocity of a bird who flies 10 meters in 2 seconds, towards the sunrise...
5 meters per second East
Mass= 15 grams
Volume= 2 ml
Density=?
7.5 g/ml
The entire lunar cycle takes this long...
What is 4 weeks
This particle does not contribute to the mass of an atom...
What is an electron?
An atom has 10 protons, 10 electrons and 12 neutrons... This is its mass...
What is 22 amu?
Draw and label an example of potential and kinetic energy...
answers will vary
What is the velocity of a car that drives 15 miles in 10 minutes from Denton to Lewisville?
1.5 miles/ min SOUTH
HR Diagrams arrange stars based on this...
Temperature and brightness
Draw and label a moon phase diagram
...
How many neutrons does Germanium have?
How many porotons does it have?
How many valence electrons does it have?
Is it a metal, nonmetal, or metalloid?
41 Neutrons
32 protons
4 valence electrons
Metalloid
This is ANY change in motion...
What is an acceleration?
A person runs 26.2 miles in 4.25 hours. How fast are they running. (round to the closest 10th.)
6.2 miles per hour
All stars start off as this...
What is a nebula?
Draw the 4 types of plate boundaries and list what each boundary creates...
1. Convergent= mountains
2. Subduction= volcanoes
3. Transform= faults and earthquakes
4. Divergent= ridges and rift valleys
List the nonmetal that has 4 valence electrons...
List a metal that has similar properties to it...
Carbon...
Tin, Lead or Flerovium
These are newton's 3 laws...
1st Law- Inertia
2nd Law- F=MxA
3rd Law= Action/Reaction
A bullet provides 304 N of force and weighs .0042kg... What is its acceleration?
72,380.952 m/sec2
The largest stars create this at the end of their life...
What are supernovas, black holes and neutron stars?
List the elements, atoms and molecules for the following formula...
(NH4)2SO4
Elements=4 (Nitrogen, Hydrogen, Sulfur, Oxygen)
Atoms= N-2, H-8, S-1, O-4 (Total: 15)
Molecules= 1