Basics
Is it possible for the same set of facts to be interpreted in more than one way?
Yes
This force causes your shoes to wear out and cars to turn on the road.
Friction
Any object designed to move quickly is designed with what shape to reduce friction?
Streamlined
What simple machine would you use to move a heavy object by placing the fulcrum close to the object?
This is where the Mid-Atlantic Ridge is found.
In the center of the Atlantic Ocean running N/S
What does this abbreviation indicate?
300 km/s
Three Hundred Kilometers per Second
A force must be applied to an object to cause this:
Movement
A spinning top has rotational what?
Inertia
This kind of pulley makes it easier to lift a heavy weight:
a Moveable Pulley
This type of rock contain fossils
Sedimentary Rocks
In order to calculate the density of an object you need what information?
volume and weight
The upward and downward forces on an airplane wing (in flight) are balanced IF these two are equal:
The Lift Force and
The Weight of the Airplane
This force is created when twisting is involved:
Torsion
Do all simple machines have moving parts?
No
Rocks that cool and harden from hot magma below the surface of the earth.
Intrusive Rocks
The formula to calculate the speed of a moving object:
Divide the Distance by the Time
This force pushes up on objects that are under liquid:
Buoyant force
This causes the moon to travel in orbit around the earth.
Gravity
In a wheel and axle machine, the wheel and axle are ________ so the turn together.
Connected
These types of rocks are found when igneous rocks or sedimentary rocks are subjected to high temperatures and/or pressure.
Newton, the scientist who wrote three laws of motion and the law of universal gravitation also invented this math:
What two forces act on a falling object?
Gravity (pulling down) &
Air Resistance (pushing up)
The faster a falling object accelerates, the more _____ it will have according to Newton.
Force
This machine is used to detect subtle vibrations in the earth:
Seismograph
A rock formation with enough porosity to hold water and allow water to be moved in and out of the rock is called this.
A Water Aquifer