# data[].attributes.body
the SI unit for force.

# data[].attributes.body
the combination of all the forces acting on an object.

# data[].attributes.body
a push or pull exerted on an object in order to change the motion of the object

# data[].attributes.body
force increases as mass increases.

gravitational force decreases as distance increases.

# data[].attributes.body
the measure of the gravitational force on an object.

an object's weight does change.

# data[].attributes.body
the amount of matter in an object.

an object's mass doesn't change.

# data[].attributes.body
a force of attraction between objects that is due to their masses.

depends on the mass and distance of objects.

# data[].attributes.body
the rate at which velocity changes over time.

formula: acceleration = final velocity - starting velocity / time it takes to change velocity

# data[].attributes.body
the speed of an object in a particular direction.

velocity must include a reference direction

# data[].attributes.body
an object/person that appears to stay in place.

in the below example, "c" is the reference point for "a" and "b".

# data[].attributes.body
the distance traveled divided by the time interval during which the motion occurred.

formula: speed = distance / time

doesn't include a reference direction.

# data[].attributes.body
an object's change in position relative to reference point.

# data[].attributes.body
substances that are applied to surfaces to reduce friction.

# data[].attributes.body
means "not moving"

when a force is applied to an object and the object doesn't move.

# data[].attributes.body
means "moving"

the friction between moving surfaces.

# data[].attributes.body
the force that opposes motion