States of Matter and Mixtures
This state of matter has the most kinetic energy
Gas
True or false: A physical change can result in an entirely different substance.
False
Where are nonmetals located on the periodic table?
right of the zigzag line
What is a balanced force?
when two or more forces acting on an object cancel out = net force of 0N
What are the parts of a transverse wave?
crest (highest) and trough (lowest)
Give an example of a homogeneous mixture
kool-aid, hand sanitizer, lemonade
Your friend decides to toast a piece of bread, but leaves it in the toaster too long. The bread is black and the kitchen if full of smoke.
A. Physical Change
B. Chemical Change
Chemical Change
Metalloids have properties of ____________.
both metals and nonmetals
highest at the bottom
lowest at the top
In longitudinal waves the medium moves __________ to the direction of the wave
parallel
T or F: Solids have no kinetic energy
false
List an example of a physical change
bending, cutting, change in shape, change in state, dissolving
What is Tellurium (TE)?
metalloid
A force that opposes motion
friction
energy
Substances with no defined shape and a defined volume.
Liquid
Chewing food to break it down into smaller particles represents a _________ change, but the changing of starch into sugars by enzymes in the digestive system represents a ___________change.
A. Chemical then Physical
B. Physical then Chemical
C. Both Physical
D. Both Chemical
Physical then Chemical
What kind of conductors are metalloids?
Semiconductors
What kind of energy is a batter?
chemical potential energy
The position of a wave when there is no disturbance.
Rest position
Give three examples of a heterogenous mixture
salad, pizza, cereal
What are the five evidence of a chemical change?
C- unexpected color change
G- gas production
L- light and sound
T- unexpected temperature change
P- precipitate
List three properties of metals?
luster, good conductor, malleable, ductile, high melting points
List three types of forces
gravity, magnetism, friction, applied force, normal force
Light is what type of wave?
transverse