Simple Machines and MA
What is the MA of a single fixed pulley?
What is One
Can sound waves travel through a vacuum?
What is No
A substance with a pH level below 7 is a(n) _____?
What is Acid
What is the equation for Force?
Force = Mass x Acceleration
What is Newton's first law?
What is the law of Interia
What simple machine is an inclined plane wrapped around a cylinder?
What is a Screw
What is the equation for Acceleration?
Final velocity - initial velocity / time
Which Law is the law of Acceleration?
Newton's 2nd law.
When finding the MA of a wheel and axle, you divide the radius of what by what?
What is the Wheel divided by the Axle.
What is the equation for Specific heat?
Q = mcDeltaT
Newton's 3rd law states that every action has an _____ opposite ______.
Equal, reaction.
Name all 6 simple Machines.
Pulley, Wheel and Axle, Wedge, Inclined plane, Screw, Lever.
What are the 2 equations for Mechanical Advantage?
MA = effort distance / resistance distance or MA = resistance force / effort force.
What is the equation for Newton's 2nd Law?
F = ma
Name all 3 types of pulleys.
Fixed, Movable, Compound
What are the equations for PE and KE?
PE = mgh and KE = 1/2 mv^2
Give an example of each of the laws.
1st - soccer ball doesn't move unless kicked. 2nd - empty cart is easier to push than full cart. 3rd - Rocket ship launching from launch pad.