Engineering Design Process
What is a problem?
A problem is a situation that needs a solution
What is an example of a solid?
Ice
What is the definition of a chemical change?
A chemical change produces new substances
Name a property of metals.
Metals are shiny and good conductors of heat and electricity
What is gravity?
A force that pulls objects toward one another
What is brainstorming?
Brainstorming is generating many ideas to solve a problem
Explain how particles move in a liquid.
Particles slide past each other
What happens during rusting?
Rust forms when iron reacts with water and oxygen
Name one metal and one nonmetal.
Example: Sodium (metal) and Oxygen (nonmetal)
What is force?
A push or pull on an object
Define "criteria."
Criteria are a set of standards used to compare ideas
What process turns a solid into a liquid?
Melting
What happens to wood when it burns?
It turns into ash, carbon dioxide, and heat
What is the atomic number?
The number of protons in an atom
What is an example of action and reaction?
Jumping off a boat moves you forward and the boat backward
What is a prototype?
A prototype is an early version of a design
Name a state of matter where particles are far apart and have high energy.
Gas
Give an example of a physical change.
Melting ice is a physical change
What do elements in the same group have in common?
They react similarly to other elements
What does inertia mean?
inertia is the tendency of objects to resist changes in motion
What is the final step in the engineering design process?
Implementing the final design
What happens to particles when a liquid turns into a gas?
The particles gain energy and move apart
What is a sign of a chemical change?
Signs include color change, temperature change, or gas production
What does the periodic table organize?
Organizes elements based on their atomic structure
What is the second law of motion?
Force = Mass × Acceleration