Atoms
What has a positive charge?
Protons
What is a magnetic force?
the attractive and repulsive forces between two poles
What is an electric charge made up of?
protons and electrons
How are waves created?
when a source creates a vibration
What is light?
Light is a form of energy emitted by the sun.
What has a negative charge?
Electrons
What are electric forces?
they occur when ions create attractive and repulsive forces
How is a current produced?
When electrons flow in a circuit
What is reflection?
happens when a wave bounces after hitting a barrier
What is engineering?
the systemic practice of solving problems with designed solutions
If the number of protons and electrons is the same, that atom has no charge. What is this called?
Neutron
What is electromagnetism?
a force combing both electric and magnetic forces
What is an electric field?
the area around an electric charge that experiences the forces exerted by the electric charge
What is refraction?
is the change in direction of a wave when it changes speed as it travels from one material (medium) to another.
What is technology?
any tool, process, or system that is designed to solve a problem
A charged atom is a (blank)?
ion
What are the two poles magnets have?
north and south
What is the fastest thing known to man?
speed of light
What is the difference between transverse and longitudinal waves?
Transverse waves are waves in which the particles vibrate in an up and down motion. Longitudinal waves are waves in which the particles vibrate back and forth in compressional pulses
What is a system?
a set of interacting parts parts that work together; sometimes considered distinct from their surroundings only for the purpose of study
What is an example of an atom?
any atom from the periodic table (iron, hydrogen, carbon, oxygen.., etc)
When electrons all spin in the same direction, they create an invisible force known as (blank)?
magnetism
What is an electric current?
a moving charge
Why is the sky blue?
Sunlight reaches Earths atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by tiny molecules of air in Earths atmosphere. Because blue has a short wave length, it is particularly of the air surrounding Earth. Red, yellow, and orange hues are much longer wavelengths, which is why they are only visible in the sky when looking near or at the sun.
What is the difference between criteria and constraint?
Criteria is the specific requirements and standards a design must meet. Constraints are limitations that define the boundaries of a design.