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Newton's Laws of Motion
Ms.S. Young --Test Friday, November 14
27
Science
7th Grade
11/13/2008

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Term
physics
Definition
THe science that deals with matter, energy, motion, and force
Term
force
Definition
any push of pull that causes a change in motion
Term
1. Push
2. pull
3. Causes a change in motion
Definition
Force: any ___________ or __________ that __________________
Term
friction and gravity
Definition
What two things work AGAINST force
Term
friction
Definition
occurs when surfaces rub against each other; slows things down
Term
Gravity
Definition
What comes up must come down
Term
Balanced forces
Definition
equal forces acting upon each other
Term
Unbalanced forces
Definition
Unequal forces which cause change in nmotion
Term
Unbalanced forces
Definition
Unequal forces which cause change in nmotion
Term
sir Issac Newton
Definition
father of Physics
invented the 3 laws of motion
Term
Born: Jan. 4, 1643
died: March 31, 1727
Definition
When was Issac Newton born? Died
Term
Born: Jan. 4, 1643
died: March 31, 1727
Definition
When was Issac Newton born? Died
Term
1st Law of motion
Definition
an object in motion stays in motion or an object at rest stays at rest until an UNBALANCED force acts upon the object
Term
Inertia
Definition
when an object tried to resist change in state of motion; an object at rest wants to stay at rest and an object in moion wants to stay in motion
Term
2nd Law of Motion
Definition
an objest's speed increases of decreases because a force acts on it.
Term
force; speed
Definition
the stronger the ________, the greater the _________
Term
Greatest force
Definition
An objest will move in the direction of the ________ ________
Term
mass; speed; its force
Definition
An objects _________ and ____________ determine ___ _____________
Term
F=M x A
(force equals mass time acceleration)
Definition
the equation for determining the force
Term
will exert (give off)
Definition
the bigger and faster it is, the more force _______ _______
Term
18 Wheeler
Definition
WHich has more force: 18 Wheeler OR VW Bug?
Term
3rd Law of Motion
Definition
For every action, there is an equal and opposite reaction
Term
centripetal force
Definition
force in circular motion
Term
roller coaster, skateboarder on half pipe
Definition
What are some examples of Centripetal forces?
Term
1st Law
Definition
WHich Law? the pool ball stays at rest until hit or stays in motion until stopped by a force
Term
2nd Law
Definition
Which Law? If an object is moved by a force, it will mobe in the direction of the force. Also the greater the force, the faster the object mvoes
Term
3rd LAw
Definition
Which Law? When pool balls hit, they bounce in the OPPOSITE direction
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