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Inertia
The tendency of an object to resist changes in its velocity, whether in motion or motionless
What is inertia based on?
Mass. The more mass, the more inertia, and the same vice versa.
What is Newton’s 2nd law?
The net force of an object is equal to the product of its mass and acceleration, or F=ma.
What is the equation for Newton’s 2nd law?
F=ma
What is the symbol for Force?
F
What is the symbol for mass?
m
What is the symbol for acceleration?
a or g
What is the unit for Force?
N (Newtons)
What is the unit for mass?
kg (Kilograms)
What is the unit for acceleration?
m/s² or m/s/s
Is Force a Vector, Scalar, or quantity?
Vector
On a velocity vs. time graph, what value does the slope represent?
Acceleration
On a velocity vs. time graph, force is directed: To the left when the slope is positive or negative?
Negative
On a velocity vs. time graph, force is directed: To the right when the slope is positive or negative?
Positive
What is the definition of mass?
The amount of matter that makes up an object
What is the definition of weight?
The measure of the force of gravity acting on an object
What is the equation to solve for weight?
Fg=mg
What is the variable for weight?
Fw or Fg
What is the unit for weight?
N for Newtons
Definition, symbols, and general direction of Applied Force
Definition: The Force applied to an object; Symbol: Fapp; General direction: Varies
Definition, Symbols, and General Direction of Gravitational Force
Definition: The Force of Gravity; Symbol: Fg; General Direction: Down
Definition, symbols, and general direction of Frictional Force
Definition: the Force of friction; Symbol: Ff; General Direction: Varies
Definition, symbols, and general direction of Air Resistance
Def: Friction from moving through the air; Symbols: Fair; General Direction: Varies
Definition, symbols, and general direction of Normal Force
Definition: The Force pushing back on an object at rest; Symbols: Fn; General Direction: Typically down
How many Forces are allowed on an FBD graph?
4
What phrases imply “balanced” forces/objects in a state of equilibrium?
At rest, Constant Velocity
What is terminal velocity?
When an object in free fall reaches a constant velocity due to Fg and Fair being equal but opposite directions to each other
What phrases imply unbalanced forces?
Accelerates, Speeds up
What do phrases like “coasting” or “rolling” imply?
The object is slowing down due to gravity