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LAWS OF MOTION
LAWS OF UNIVERSAL GRAVITATION
FORCE, WORK, & MACHINES
LAW CONSERVATION OF ENERGY
Miscellaneous
100
any push or pull that can affect an object either in motion or at rest
What is force?
100
applies to all objects in the universe
What does universal means in respect to Newton's laws?
100
work = force X distance
What is the definition of work?
100
kinetic and potential
What are 2 types of energy?
100
water waves & sound waves
What are 2 types of waves that carry energy?
200
The Law of Inertia; the Law of Acceleration- part 1 &2; & The Law of Interaction
What are Newton's 3 laws of motion?
200
Gravitational force is an attractive force that pulls two objects towards one another
What doe sthe Law of Universal Gravitation, Part 1, state?
200
a force applied to an object and the object must move
For work to occur, what must happen?
200
kinetic- energy of motion potential- stored energy
What is the differenec between kinetic & potential energy?
200
bounces off surface; bends & continues; spreads out into a region behind a barrier
What happens when a sound wave reflects? refracts? & diffracts?
300
If no force is applied, an object at rest will remain at rest. An object inmotion will move in a straight line at a constant speed.
What does the Law of Inertia state?
300
Gravitational force is greater for heavier objects (objects with more mass) than for light objects
What does the Law of Universal Gravitation, Part 2 state?
300
simple machine- multiplies the effort force (force that is applied)
What is a lever? How does it make work easier?
300
force that slows a moving object
What is friction?
400
Part 1- an object's speed increases in proportion to the amount of force applies. Part 2- For the same amount of applied force, a lighter object accelerates- changes its speed- at a greater rate than a heavier object
What is the Law of Acceleration( 2 parts)?
400
The force of gravity decreases as the distance between objects increases.
What is Newton's third law of universal gravitation?
400
force X distance = force X distance
What is the formula for amount of work that goes in & out of a simple machine?
400
sliding, static, fluid, rolling
What are 3 other types of friction?
400
flow of electrons ina material (copper wire)
What is an electrical current?
500
For every action, there is an equal and opposite reaction.
What is the Law of Interaction?
500
1st law of universal gravitation 2nd law
Which laws would these examples apply? The 9 planets of the solar system orbit around the sun. It is more difficult to lift a 10 year old boy than an infant off the ground?
500
changing the direction in which force is applies changing position where force is applied changing small force into much larger force
What are 3 ways that machines make work easier?
500
During interactions, enrgy may change fromone form to another, but no energy is lost. The total amount of energy present remains constant.
What is the Law of Conservation of Energy?
500
material which electrons can be made to flow (copper) material which electrons cannot be made to flow (rubber) material which only small amount of electric current can be made to flow (silicon)
What is the difference between a conductor, a nonconconductor, & a semiconductor?