Matter
Matter is defined as anything that has
mass and occupies space
Energy is defined as
the capacity to do work or move matter
Static electricity occurs when:
There is an imbalance of electric charges
The building block of matter
Atom
lightning moves from ... to ...
clouds... ground
3 states of matter are
Solid, Liquid, Gas
Energy of position or stored energy is also called
Potential Energy
When you rub a balloon against your hair, electrons transfer from your hair to the balloon. What type of charge will your hair have?
Positive charge
3 major subatomic particles that make up an atom are
protons, neutrons, and electrons
Lightning is classified as this type of matter
plasma
Atoms are closely tight together
Solid
As electrical energy is converted into thermal energy, the total amount of energy in the system
remains the same
What is the primary cause of static cling in clothes?
Transfer of electrons during friction
When alpha particles are used to bombard gold foil, most of the alpha particles pass through undeflected. This result indicates that most of the volume of a gold atom consists of
unoccupied space
Lightning is classified as this type of energy
Light energy
Atoms are moving, but still close together
Liquid
In a steam turbine engine, high-pressure steam produced by boiling water is used to spin turbine blades, which then turn a generator to produce electricity. Which sequence best describes the main energy conversions taking place?
Thermal energy → Mechanical energy → Electrical energy
A rubber rod is rubbed with fur. The rod becomes negatively charged because
It gains electrons from the fur
The modern atomic model describes an atom as
A dense nucleus surrounded by electrons in specific energy levels
Lightning occurs as result of interaction between
+ and - charges
Atoms are spread apart
Gas
The triboelectric effect occurs when two different materials come into contact and electrons are transferred, leaving one object positively charged and the other negatively charged. A student rubs a plastic comb on their hair and then uses the comb to pick up small pieces of paper. Based on the triboelectric series, which explanation best supports why this happens?
The hair loses electrons to the comb, making the comb negatively charged and able to attract paper.
Two objects are brought near each other. If both objects are positively charged, they will:
Repel each other
The major portion of an atom's mass consists of
neutrons and protons
The gods of lightning are
Zeus and Thor