Forces/Energy
When it comes to magnetic poles and electric charges opposites always _________ each other.
attract
Fossils can only be found in ____________ rocks.
sedimentary
When nature decides who lives and dies, this process is called _________ _______.
natural selection
If two forces are moving in opposite directions we have to __________ to get the net force.
subtract
What is the equation for Newton's Second Law of Motion?
F=ma
a=F/m
m=F/a
The most common natural disasters found at transform plate boundaries are __________.
earthquakes
The process in which humans will select certain dogs to breed together based off of desired traits for the offspring is called __________ __________.
artificial selection
You find a black lava rock with large pores, this is most likely a(n) ___________ rock.
igneous
A person traveling in their car at a constant speed of 45MPH would be an example of a(n) __________ force.
balanced
A geologist in Texas found a rock with an ammonite index fossil 250ft down in a dig. A geologist in Tokyo found a rock with an ammonite index fossil 500ft down in a dig. Is the Texas rock older, younger, or the same age as the Tokyo?
the same
There is a population of moths that has equal numbers of light and dark colored wings released into an environment. If the environment has mostly trees with white bark, which moth population to you expect to survive better?
light colored moths
The process of rain wearing down a rock in your yard would be an example of __________.
weathering
An electric generator uses ________ to produce ____________.
motion, electricity
The idea or theory that all continents on earth were once combined and have just slowly drifted apart over the years is called _____________.
When observing a variation in finch beaks on the Galapagos islands Darwin came up with a hypothesis that all finches came from a __________ __________.
common ancestor
The Galapagos finches evolved to have several different types of beaks. This was an example of evolution being driven by ________ .
survival
In a game of tug of war one side is pulling with 50N of force and the other side is pulling with 75N of force. How much net force is being put on the rope?
25N
An extrusive igneous rock is a rock that is formed ________ the earth's crust and cools ______.
outside, quickly
What is one trait that has changed in the evolution of horses from ancient day to modern day?
Skull shape, size, or toes.
battery, loops