# Shared Flashcard Set

## Details

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

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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