2. Pre-Test
Answer the following questions in a ½ crosswise.
1.)What law is natural the
tendency of an object to maintain
a state of rest or to remain in
uniform motion?
INERTIA
3. 2.) What is Motion?
he action or process of moving or being moved
4. 3.) Who is the Scientist that
DEFINED inertia as the
tendency of an object to
maintain its initial state of
motion?
GALILEO GALILEI
6. 5.) What branch of science
studies the 3 laws of
motion?
DYNAMICS
7. 6.) Who is the English
scientist and
Mathematician did further
studies on the ideas of
Galileo Galilei and created
the 3 laws of motion?
ISAAC NEWTON
8. 7.) What Law of motion
have this definition:
“For every action, there is
an equal and opposite
reaction”
LAW OF INTERACTION
9. 8.) What law of motion is
the property of matter that
causes a body to resist
changes in its state of
motion?
INERTIA
10. 1st Law of motion: INERTIA
*Objects at rest- “an object at rest will remain at rest
unless an outside force will cause it to move”
Ex.)
A soccer ball will remain at rest until it is kicked.
The cart standing still in a grocery store has inertia
at
rest it will move unless someone will push or
pull it.
11. 1st law of motion: INERTIA
Objects in motion- “an object at motion continues to
move in the same direction unless an outside force
will stop it”
Ex.)
A person stops pushing a cart and it stops moving
12. 2nd Law of motion:
ACCELERATION
“the acceleration of an object is directly proportional
to the force applied and inversely proportional to the
mass of an object”
*the greater force applied the greater the change in
motion of an object.
*the greater the mass the slower the acceleration of
an object.