Structure of Matter
The ______ is the particle in the nucleus of the atom that carries a positive charge and is counted to identify the atomic number.
Proton
True or false, an atom can be broken down into smaller pieces.
FALSE
Protons have a _______ charge while electrons have a ______ charge.
Positive, negative
An object that attracts or pulls on on certain material made of iron or steel is called:
Magnet
True or false, two positive charges will attract.
False
Anything that has mass and takes up space is _________.
Matter
What are the classifications of matter?
Atoms are electrically_______.
neutral
What are the two types of magnets?
Permanent and temporary
In solids, the flowing charges are:
Electrons
The particles in the atom that account for most of the mass of the atom are protons and _______
Electrons
What is the force that holds atoms together called?
Chemical bond
The pull or push that an electric charge will experience is called:
Electric Force
What surrounds a magnet and exerts a magnetic force on other magnets called?
Magnetic field
Using Ohm's law (V=IR) or Volts=Current x Resistance
Solve the following:
the current in a plug in is 110A and the resistance is 0.75 Ohms. What is the Volts?
84.5 Volts
What does the atom consist of?
Electrons, Protons, and Neutrons
What do molecules make up?
Compounds
Lightning is an example of:
Electrical Discharge
A group of atoms with their fields pointing in the same direction is called a:
Magnetic domain
Using the Power equation (P=IV) or Power=Current x Voltage solve the following:
A lightbulb is plugged into a 125V wall outlet. How much electric power does the lightbulb use if the current in the bulb is 0.45 A?
56.25 Watts
What are two atoms that have the same number of protons called?
Isotopes
a Homogeneous mixture is difficult or impossible to see the different parts. Describe a Heterogeneous mixture.
Easy to see and separate the different pieces.
The process of providing a pathway to drain excess charge into the Earth is known as:
Grounding
A generator convert kinetic energy into _______ energy.
Electric
What is a neutron described as?
Uncharged particle