Vocab
What is the region surrounding the Sun and the solar system that is filled with the solar magnetic field and the protons and electrons of the solar wind?
What is the equation for gravitational force?
Fg = G(m1m2/r2)
What is the equation for electrostatic force?
Fe = k (q1Xq2/r2)
What is Newton's third law of motion?
Every action has an equal and opposite reaction.
What are the elements in group 18 called?
Noble gasses
What is solar wind?
Continuous flow of charged particles from the sun
What is the relationship between gravitational force and mass? What does the graph look like?
They have a directly proportional relationship.
Coulombs
Is gravitational force sometimes, always, or never repulsive?
What group is the most reactive?
Group 1
What occurs when charged particles from the sun collide with gases in Earth's upper atmosphere?
An Aurora
What is the relationship between gravitational force and distance? What does the graph look like?
It is an inverse and exponential relationship.
How do we know if two objects are repulsive or attractive?
Two objects are repulsive when they are the same charge (+)(+) or (-)(-). They are attractive when they are different charges (+)(-).
What is 0.000034 in scientific notion?
3.4 X 10-5
Order the particles from heaviest to lightest:
Protons, Molecules, Electrons, Atoms, Neutrons
Molecules, Atoms, Protons, Neutrons, Electrons OR
Molecules, Atoms, Neutrons, Protons, Electrons
What is a magnetic field?
A region around magnetic material
There is a cat with a mass of 50 kg and a mouse of 5 kg. They are 3 m apart. What is the gravitational force between the two animals.
1.85 X 10-9 N
A cat has a charge of -0.003 C. A mouse has a charge of +0.025 C. They are 4 m apart. What is the electrostatic force between them? Are the repulsive or attractive?
4.22 X 104 N. They are attractive
What is 9.876 X 108 in standard notion?
987,600,000
What is thermal energy?
The total kinetic energy of the motions of all particles within an object.
What is scientific notation and why do we use it?
Scientific notion is a standardized way to represent any number as the product of a real number and a power of 10. We use it to write really large numbers and really small numbers in a easy to read manner.
What is the difference of g and G?
g is the acceleration due to gravity. G is the gravitational constant.
Student A has a charge of +0.002 C. Student B has a charge of +0.003. They are 2 m apart. What is the electrostatic force between them? Are they repulsive or attractive?
1.35 X 104
What is 8.9 X10-12 in standard notation?
0.0000000000089
What is a triple point?
The temperature and pressure at which the solid, liquid, and vapor phases of a pure substance can coexist in equilibrium.