Forces and Motion
The attractive or repulsive forces that are caused by the polarity of magnetism–It is a noncontact force.
What is magnetic force?
The person who uses science to develop technology
What is an engineer?
A homogeneous mixture in which one kind of substance is dissolved into another
What is a solution?
Law that states that speed and direction of an object does not change unless acted upon by an unbalanced force
What is Newton's First Law of Motion?
The transfer of heat through direct contact
What is conduction?
A measure of distance traveled divided by a unit of time
What is speed?
The upward force exerted by a fluid on a solid object placed in a fluid
What is buoyancy?
Two or more kinds of substances that have been combined physically but have not bonded chemically
What is a mixture?
Law that states that the total mass of substances stay the same before and after an interaction
What is Law of Conservation of Mass?
The ability to do work and change matter
What is energy?
A machine that converts mechanical energy into electrial energy
What is a generator?
An increase of force made possibly by a machine
What is an mechanical advantage or advantage?
A neutral subatomic particle with no charge
What is a neutron?
Law that states that energy is neither created nor destroyed, only transferred
What is the Law of Conservation of Energy?
A model of a design that is used for testing
What is a prototype?
A limitation or boundary for the design process
What is a constraint?
Type of reaction in which atoms are rearranged within molecules and new substances are formed
What is a chemical reaction?
A heterogeneous mixture with tiny, suspended clumps or particles
What is a colloid?
Law that states that an object’s acceleration is determined by the forces acting upon it as well as its mass
What is Newton's Second Law of Motion
Science term for an object lifted or moved by a machine
What is a load?
Type of forces that result in work being done or accomplished
What are unbalanced forces?
The main groups of the periodic table are:
Metals, nonmetals, and
___________
What are semi-metals?
A method used to separate solid materials from one another
What is skimming?
All Substances that are either: bases, acids, or
_______
neutrals
The transfer of heat by moving liquid or gas
What is convection?