Friction
Rolling friction
When an object physically touches another
Contact forces
This is the best measurement device for weight and or mass
Scales
Inelastic and elastic collisions are found in his law of motion
1st law
Stuff in stuff
mass
When an object doesn't move
Static friction
When an object is indirectly touching another object through the air, molecules, elements
Field forces
The scientist behind gravity
Isaac Newton
_______ increases as mass increases
Inertia
the formula for gravity/weight
Mass X 9.8m/s2
When an object is falling through the air (gases)
Fluid friction
electromagnetic
When an object has reached its highest speed possible
Terminal Velocity
what does F=MA mean
force = mass X acceleration
What 2 units of measurement is weight measured in
Metric and Customary
sliding friction
Radiation is this type of force
weak nuclear
When an object is being pushed against the force of gravity in the atmosphere
Air resistance
Which law is "every action has an equal and opposite reaction"
Force is used to ______ an objects motion
change
What is produced when friction occurs
heat
Weakest of the 4 known forces
Gravitational
Decade in which Isaac Newton discovered gravity
1660s
Large mass, low speed results in what
large amounts of force
When in outer space, your ____ stays the same
Mass