Atoms
What is the smallest unit of matter?
Atoms
What is the ability to do work called?
Energy.
What is the force that opposes motion between two surfaces in contact called?
Friction.
What is the term for the distance between two consecutive peaks or troughs of a wave?
Wavelength.
What is the periodic table organized by?
Atomic numbers.
Which subatomic particle has a negative charge and orbits the nucleus of an atom?
Electrons.
Which law states that energy cannot be created nor destroyed, only converted from one form to another?
The Law of Conservation of Energy.
What is the force that causes an object to change its motion, such as push or pull, called?
External force or Applied force.
What is the term for the number of waves that pass a given point in a certain amount of time?
Frequency.
Which group of elements is known for being highly reactive and includes elements like lithium and sodium?
Alkali metals or Group 1.
What is the term for the attractive force that holds electrons in orbit around the nucleus of an atom?
Electromagnetic force.
Potential Energy.
Which type of motion involves an object moving in a circular path at a constant speed?
Uniform circular motion.
Which type of wave requires a medium to propagate, such as water or air?
Mechanical wave.
What is the term for the horizontal rows of elements in the periodic table?
Periods.
Which of the following is an example of an isotope?
Carbon-12 or Carbon-14
Both.
Which type of energy is associated with an object's motion?
Kinetic energy.
Which of Newton's laws states that an object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force?
Which type of wave has both electric and magnetic components and can travel through a vacuum?
Electromagnetic waves, Light waves, or Radio waves.
What is the term for the vertical columns of elements in the periodic table?
Groups or Families.
What is the process by which atoms gain or lose electrons to form ions?
Ionization or electron transfer.
What is the term for the energy transferred from one body to another through direct contact, such as touching or rubbing?
What is the force that pulls an object towards a central point, such as the force of the Earth on an object, called?
Centripetal force.
What is the term for the bending of waves around a corner or through a small opening?
Which element is in the second column (Group 2) and second period of the periodic table?
Magnesium or Mg.