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Vocab
Examples
Newton
Simple Machines
Forces
100
a rigid bar that rotates around a fixed point called a fulcrum
lever
100
using a force to move an object a distance
work
100
Newton's first name
Isaac
100
Do simple machines make work easier or harder?
easier
100
the force that keeps you from floating in the air
gravity
200
consists of a grooved wheel that turns freely in a frame called a block
pulled
200
example of a lever
seesaw
200
First law of motion
object in motion will stay in motion, object at rest will stay at rest
200
What are compound machines made up of
two or more simple machines
200
the force that is used on one end of a seesaw to raise the other end
push
300
a simple machine consisting of a large wheel rigidly secured to a smaller wheel or shaft called an axel
wheel and axle
300
example of incline plane
ramp
300
newton's second law
acceleration happens when a force acts on a mass
300
How many classes of levers are there?
3
300
the force that makes a ball role slowly in thick grass
friction
400
an even sloping surface
incline plane
400
example of a wedge
ax
400
newton's third law
for every action there is an equal and opposite reaction
400
the fixed point a lever moves around
fulcrum
400
the force that is used in tug of war
pull
500
used as either separating or holding devices. can be made of one or two incline planes
wedge
500
example of a pulley
crane
500
how many laws of motion did newton have?
3
500
the ability to do work
energy
500
the force that is used for a pulley
pull