Simple machine consisting of a bar free to pivot about a fixed point called the fulcrum
What is a lever?
100
Distance / Time
What is speed?
100
States that energy can never be created or destroyed
What is the law of conservation of energy?
100
K
What is potassium?
100
Any substance that forms hydroxide ions in a water sloution.
What is a base?
200
A simple machine that consist of a sloping surface that reduces the amount of force needed to lift something by increasing the distance over which the force is applied
What is a inclined plane?
200
Change in Velocity / Time
What is acceleration?
200
States that the mass of all substances present before a chemical change equals the mass of all the substances remaining after the change
What is a law of conservation of mass?
200
NaO
What is sodium oxide?
200
Any substances that produces Hydrogen ions in a water solution.
What is an acid?
300
A simple machine that consist of a grooved wheel with a rope, chain, or cable running along the groove; can be either fixed or movable
What is a pulley?
300
mass (kg) x accerlation of gravity (m/s^2)
What is weight?
300
The acceleration of an object is the same direction as the net force on the object.
What is Newton's Second Law?
300
Atomic number: 20
Atomic Mass:40.078
What is calcium?
300
The smallest particles of an element that still retains the properties of an element.
What is an atom?
400
A simple machine that consist of a shaft or axle attached to the center of a large wheel so that the shaft and the wheel rotate together
What is a wheel and axle?
400
(constant) x (mass 1) x (mass 2) / (distance) ^ 2
What is gravitational force?
400
States that forces between two objects are always exerted in pairs.
What is Newton's Third Law of Motion?
400
Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, Francium row also named...
What are Alkali Metals?
400
Compound that composed of to elements.
What is a binary compound?
500
A system of pulleys consisting of fixed and movable pulley
What is a block and tackle?
500
output force / input force (both in newtons)
What is mechanical advantage?
500
States that the gravational force between two masses decreases rapidly as the distance between the masses increases
What is the Law of Universal Gravitation?
500
Elements on the periodic table that share some properties with metals and non-metals.
What is a mettaliod?
500
Closed conducting loop through which an electric current can flow.