Science Revealed
Science Continued
Science Revisited
Beneath the Planet of Science
The Return of Science
100
an upward force on an object that moves in a fluid
What is lift?
100
This is done when a force causes an object to move in the direction of the force.
What is work?
100
a fixed point on the bar of a lever.
What is a fulcrum?
100
the force that opposes motion between 2 surfaces that are touching.
What is friction?
100
These are energy resources that formed from the buried remains of plants & animals that lived millions of years ago.
What are fossil fuels?
200
a force that opposes or restricts motion in a fluid.
What is drag?
200
This is the rate at which energy is transferred.
What is power?
200
The amount of matter in a given volume, or mass per unit of volume.
What is density?
200
This is energy caused by an object's vibrations.
What is sound energy?
200
A machine made of more than one simple machine.
What is compound machine?
300
the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces.
What is Archimedes' Principle?
300
This is a device that makes work easier by changing the size or direction of a force.
What is machine?
300
This determines a airplane's speed
What is thrust?
300
A change from one form of energy to another.
What is energy conversion?
300
A simple machine consisting of two circular objects of different sizes.
What is a wheel and axle?
400
Fluids include this and gases.
What are liquids?
400
A simple machine that has a straight, slanted surface
What is an inclined plane?
400
The machine allows a smaller _____ to be applied over a longer distance.
What is force?
400
This is released when the nucleus of a large atom is split.
What is energy?
400
Work depends on this as well as force.
What is distance?
500
Water pressure depends on this
What is depth?
500
The number that tells how many times a machine multiplies force.
What is mechanical advantage?
500
The energy of moving electrons.
What is electrical energy?
500
This is a group of objects that transfer energy only to each other.
What is a closed system?
500
The amount of work an object can do because of the object's kinetic & potential energies.
What is mechanical energy?
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