Ch.2 FE
When one object pushes or pulls another object is called what?
Force
When force is measured in Newtons and distance in meters is called what?
Joule
A material that conducts heat well is called what?
Conductor
What 3 things do you need to be a good scientist?
Curiosity, honesty, creativity
What is a negative result of either taking or not taking action?
Cost
The strength of a force is measured in the SI unit is called what?
Newton
When work is measured in joules and time in seconds the SI unit of power is the joule per second.
Watt
What is it called when the expanding of matter when it gets heated?
Thermal expansion
What should open-mindedness be balanced by?
Skepticism
What is understanding scientific terms and principles well enough to ask questions and to make decisions?
Scientific literacy
What is the combination of all the forces on an object called?
net force
___________ are devices that allow you to do work in an easier way.
Machines
_________ is a type of heat transfer that occurs only in fluids such as water and air.
Convection
How many bias are there?
3
Sometimes scientific work conflicts with beliefs of a society or its leaders is called what?
Controversy
What are two factors that affect the gravitational attraction between two objects?
Mass and distance
distance and mass
How do you calculate the efficiency of a machine?
Input/output x 100
At absolute zero, particles have no______ energy.
kinetic energy
kinetic
_________ is a way to explain things by starting with a general idea.
Deductive reasoning
___________ was a biologist who wrote about science and nature.
Rachel Carson
What is a force that causes an object to move in a circular path?
Centripetal force
What is the fixed point that a lever pivots around?
Fulcrum
Celsius and Fahrenheit scales are divided into degrees, the ______ _____ is divided into _______.
Kelvin scale
kelvins
Scientists must be careful not to use ________.
Faulty reasoning
_________ was a young doctor working in a hospital in Austria in the 1840s, he observed that many women died from infections after giving birth.
Ignaz Semmelweis