momentum Flashcards
Momentum or linear momentum is defined by the equation:
Momentum is a quantity
it will change if either …including the
vector
mass and velocity change,
direction
The units of momentum are
kg m/s
momentum can be ….as well as
If an object travelling to the right has positive momentum, an object travelling in the opposite direction (to the left) will have momentum.
negative positive
negative
any ….that is moving has momentum
mass
momentum is also
the tendency of an object to keep moving in the same direction
momentum is a vector so the answer should read ….kgm/s …
if east is positive and our vector is due to west
will be
due east /west…
negative
In the absence of external forces (such as friction), the total momentum of a system
This means that in a collision,
remains the same.
the sum of the momentums before the collision will be the same as the sum of momentums after the collision.
the principle of conservation of momentum states that
this principle allows us to tell …
the sum of the momentums before the collision will be the same as the sum of momentums after the collision provided no external forces act on the objects
predict how an object will move after a collision
see page 52 and than do pages 62-65
When a resultant (unbalanced) force acts on a mass, the …of that mass will …
momentum
change.
The impulse of a force is equal
equation
explanation
to that force multiplied by the time for which it acts:
When a resultant (unbalanced) force acts on a mass, the momentum of that mass will change.
The change in momentum of a mass is equal to
the impulse provided by the force:
