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EXAM STUDY TIME: Newton's First Law
Wish there wasn't so much physics!
15
Physics
9th Grade
07/24/2009

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Term
What is Newton's First Law better known as?
Definition
The law of inertia.
Term
Who first came up with Newton's first law?
Definition
Galileo.
Term
Ancients thought ____ ____ was needed to maintain motion.
Definition
Continual Forces.
Term
What measures inertia?
Definition
Mass.
Term
Define Mass.
Definition
The quantity of matter in an object.
Term
What is the difference between mass and volume?
Definition
Volume is a measure of space, while mass is a measure of matter.
Term
What is the difference between mass and weight?
Definition
Weight is the measure of gravity on you, and mass is the amount of matter in you.
Term
What unit is used to measure mass?
Definition
Kilograms.
Term
What unit is used to measure weight in the metric system?
Definition
Newtons.
Term
Where would a brick weigh more: On Earth or on the Moon?
Definition
On Earth, because there is more gravitational force acting on it.
Term
Where would the mass of an object be more, on Earth or on the Moon?
Definition
It would not matter where you were the mass would be the same.
Term
What is net force?
Definition
The combination of all forces acting on an object.
Term
What is support force?
Definition
Support force is force that balances weight.
Term
In the absence of net force, objects at rest will stay ___ ______, and objects in motion will stay ___ _______ in a _____ _______.
Definition
At rest, in motion, straight line
Term
For Newton's First Law to be observed, forces must be ___________ or net force equals ______
Definition
Balance, Zero.
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