Free fall Physics Dombi

What is free fall?

the motion of any object under the sole influence of gravity.

all objects fall at the same rate, regardless of their ___

Mass

There is a constant ____ due to gravity

Acceleration 

what is neglected in free fall?

air resistance and/or effects of friction

What is acceleration due to gravity?

Rate at which objects move in air

What is the symbol for acceleration due to gravity?

g (a subscript y)

What is the constant for gravity on earth?

9.81 m/s²

Each planet and moon in our solar system has a different…?

Constant acceleration due to gravity 

What does constant acceleration due to gravity depend on?

Mass and radius of the planet

What does the graph look like for acceleration vs. mass?

The acceleration due to gravity on Earth is always 9.81 m/s²

What does the graph look like for speed vs. time (in free fall)?

As the object falls, speed increases at a constant rate

What does the graph for position (or distance) vs. time look like?

The distance the object falls increases as the square of time

What is implied by “free fall” or “dropped”

The initial velocity is 0 m/s

What does “happens on earth” imply?

The value for gravity is 9.81 m/s²

Why do some variables have a subscript of “y” ?

it shows that the force is happening vertically

Free fall is always ____ (y) and does not have _____ (x)

Vertical; horizontal 

What are the equations typically used in free fall?

The acceleration (a) due to the force of gravity is ____

Constant (always the same)

Every second an object falls to the ground, speed _____

Increases by 9.81 m/s²