States of Matter
What state of matter maintains a fixed volume and shape
Solid
What is anything that has mass and takes up space?
Matter
What is a substance that contains 2 or more substances that are not chemically combined?
A Mixture
Why test mechanical properties?
To determine their safety or if they are a good fit for a project
What state of matter has the following properties:
Volume stays the same
Adapts to the shape of its container
Flows to the lowest part of a container
Mass
What is matter that has specific components and properties?
Substance
Why do recalls happen?
A material didn't work as expected and created an unsafe situation
What state of matter has particles that are touching but can move past each other?
Liquid
What happens to the mass when you mix two substances together?
It combines
If I mix salt and water did I create a new substance?
No
What are mechanical engineers?
They design, construct, and use machines
What state of matter has the following properties:
-Expands to occupy the volume and shape of the container
-Colorless and Odorless
-Particles are fast moving and spread apart
Gas
What would the total mass be when you mix 35g of lemonade powder into 110g of water?
145g
If I mix baking soda and vinegar did I create a new substance?
Yes
What is the property that allows a material to stretch and return to its original shape?
Elasticity
What can move matter from one state to another?
Temperature
What is the law of conservation of mass?
Matter cannot be created nor destroyed; only transformed or transferred from one form to another
If I mix 165g of rubbing alcohol with 215g of water, what would the total mass be?
380g
What property would you test a playground floor for?
Softness/Firmness
Compressibility
Fatigue Strength