Machines 1
Two or more simple machines make a __________.
Complex (Compound) Machines
A simple machine does work using TWO movements
false; one
Who created the 3 Laws of Motion?
Sir Issac Newton
A simple machine that pivots on a fixed point
lever
A screwdriver is an example of an INCLINED PLANE
false; wheel & axle
What is the unit used to measure force?
Newtons
an inclined plane wrapped around a cylinder
screw
Two or more simple machines that work together is a COMPOUND (COMPLEX) MACHINE
true
Which law is this: An object in motion will stay in motion and an object at rest will stay at rest unless acted on by an outside force
1st Law of Motion
A grooved wheel with a rope or cable wrapped around it
pulley
a pulley makes work easier by changing the DIRECTION of the applied force
true
Force is equal to mass times acceleration. Acceleration can increase or decrease depending on force and mass.
2nd Law of Motion
an inclined plane that moves
wedge
You can calculate the acceleration of a hammer removing a nail using Newton's THIRD law
false; second
For every action there is an equal and opposite reaction.
Newton's 3rd Law of Motion