Vocab
Kinetic Energy
the energy an object has due to its motion
Give an example of kinetic energy
A moving car
True or false: Energy means the ability to work. Energy is the capacity to change matter.
True
"Burning fuel and using steam create..." What?
Electricity
What relates to how fast something is moving and how fast it moves over a distance
Speed
What factors can affect kinetic energy?
Mass and speed
What are some examples of chemical energy?
Gasoline, coal, natural gas, etc.
What is a machine that contains a powerful magnet that creates a magnetic field?
A generator.
What is an example of Acceleration?
Ex: An object is moving 10 feet per second. The object speeds up and now is moving at 15 feet per second. The object has accelerated.
If a plane was traveling at the same velocity as a bird, which would have the most kinetic energy (assuming the plane has more mass)?
The Plane
True or false; A chemical change is when the particles that makeup two or more substances are rearranged to form a new substance
True
True or false: All matter is made up of ONLY positive charges.
Potential Energy
Potential energy is the stored energy an object has because of its position or state
What is the standard unit of measurement for kinetic energy?
Joule
What is an example of a chemical change that can't be undone?
Burning down a tree
If a balloon was charged with positive charges and a soda can was charged with negative and positive charges; Which way would the can roll?
Towards the balloon
What is Friction AND give an example.
the resistance to motion of one object moving relative to another
Where would a car traveling on a roller coaster have the most potential energy?
At the top
True or False: One example of a chemical reaction is when H20 (water) melts and changes state from ice to liquid.
False
What is an example of static electricity?
Your pants sticking to your legs