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A tsunami can change the landscape, T or F
False
A volcanoe can change the landscape, T or F
True
What is the balance point in a lever called?
Pivot
What class of levers are Hammers
Class 3
What class of levers are Nutcrackers
Class 2
What class of levers are Scissors
Class 1
A 1 system pulley makes it easier to do work? T or F
False
what is the mechanical advantage of a 3 system pulley?
1:3
Name the type of simple machine that is a see-saw
Lever
Concrete is an invention? T or F
True
What is the force used when lighting a match
Friction
What is the force acting on two Magnets
Magnetic Forces
What is the force acting on a catapult
Elastic Forces
What is the force acting on a falling rock
Force of Gravity
A force is any _______ or _____ that changes or tried to change the motion of an object.
Push or pull
A cam changes between two types of motions, what are they?
Oscillation and rotation
