4. FRAME OF REFERENCE
The background or point that is used
for comparison when motion is
described.
The most common frame of reference
is the Earth.
5. Motion is the change in position relative
to the frame of reference in a certain
amount of time.
6. Speed is the rate at which an object moves.
Speed=
9. What is acceleration?
What is the formula for
acceleration?
The rate of change in velocity is known as
acceleration.
Acceleration =final velocity – original velocity
time
11. The velocity is continuously changing
because direction is continuously changing.
An object in circular motion is accelerating
even though its speed may be constant.
12. Momentum is equal to the mass of an object
multiplied by its velocity
Momentum= Mass X Velocity
13. How is momentum conserved?
The total momentum of any group of object
remains the same unless outside influences
act on the objects.
