Unit 1
What is velocity?
Speed and a given direction
What is Friction?
A force that resists motion
What is Kinetic Energy?
a form of energy-related to an object’s mass and speed
What are the states of matter?
Solid, liquid, gas, and plasma
What is an element?
a substance that is made of only one type of atom and that can’t be made into a simpler substance
What is acceleration?
a change in velocity over time
What is a force?
A push or pull
What is potential energy?
a form of energy relating to an object’s position or arrangement
What are the physical properties of matter?
a characteristic of a substance that can be measured or observed without changing the chemical identity of the substance
What is an atom?
the smallest unit of matter that has the chemical properties of an element
Who is the creator of the Laws of Motion?
Isaac Newton
What is Newton's First Law of Motion?
An object at rest remains at rest, and an object in motion remains in motion at a constant velocity, unless acted upon by an unbalanced force.
What is a ferromagnetic metal?
a metal that a magnet can attract, such as iron, cobalt, or nickel
What are the Chemical Properties of matter?
a characteristic of a substance that can only be observed when it changes during a chemical reaction
What is a molecule?
a substance that is formed when two or more atoms join
What is speed?
Distance over time
What is an unbalanced force?
a force that is not canceled out by any other forces
What is mechanical energy?
the sum of an object’s potential and kinetic energy
What is sublimation?
a change from a state of solid to gas
What is a Compound?
a pure substance that is formed when atoms of different elements come together
What does it mean when the line goes straight from bottom left to top left on a graph?
It means it is positive and linear
What is Newton's Second Law of Motion?
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
What is Newton's Third Law of Motion?
Whenever an object applies a force on another object, the second object will also apply an equal and opposite force on the first object.
What is a deposition?
a change from a state of gas to solid
What is a homogeneous mixture?
a mixture in which the substances are evenly distributed