Unit 1
Who made observations with a telescope that defended the sun-centered model of the Solar System?
Galileo Galilei
On a time position graph describe changing motion.
The graph has two different types of motion.
what does Newton’s third law say
that every action force has an equal and opposite reaction force.
What are the States of Matter.
solid, liquid, gas, and plasma.
alkaline earth metals
common name for Group 2 elements of the periodic table
Describe a position time graph for an object at rest.
The position would not increase or decrease. It would be a horizontal line.
what is a diagram showing forces acting on an object
free-body diagram
What is ferromagnetic metal?
a metal that a magnet can attract, such as iron, cobalt, or nickel
Definition of melting point
the temperature at which a solid changes into a liquid
What table is based on Mendeleev’s work
The Modern Periodic Table
The definition of speed?
the ratio of distance moved to total time required to move that distance
What is unbalanced force
a force that is not canceled out by any other forces
What is one end of a magnet
Pole
a change from a state of liquid to gas
vaporization
homogeneous mixture
a mixture in which the substances are evenly distributed