Metals, non-metals, Metalloids
Shiny, high melting point, good conductors of heat and electricity, found to the left of the PTOE
Metals
What is Net force?
Overall force exerted on an object
What is Newton's 1st Law? State the whole Law.
An object in motion remains in motion or an object at rest will remain at rest unless acted upon by an unbalanced force.
What is the formula for speed?
Speed = Distance / Time
What must be created in order to know a chemical change has occurred?
A NEW SUBSTANCE
Mostly gases at room temperature
Non-metals
What must the net force be in order to be Balanced?
zero
Explain Newton's 2nd Law.
F = MA
The force mass an object has, the more force is needed to accelerate it.
m/s
Meters per second
What does the Law of Conservation of Matter state?
That the mass of the reactants is equal to the mass of the products after the chemical change because matter cannot be created or destroyed.
Name 3 elements that are semiconductors.
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, Astatine
What is an example of an Unbalanced force?
Example must include movement
What does acceleration mean?
Any change in motion.
Slowing down, speeding up, stopping, or changing direction.
What is the difference between Speed and velocity?
Velocity includes direction like North, East, South, West.
In the digestive system, what is an example of a physical change and a chemical change?
Physical changes - Mechanical digestion - teeth grinding food and stomach churns food
Chemical Changes - Chemical digestion - saliva, enzymes, and stomach acids.
Which metal is the only liquid at room temperature?
Mercury
---> M <-------
50N 100N
What is the outcome?
50N Left
What is Newton's 3rd Law?
Action/ Reaction
For every action, there is an equal and opposite reaction.
Draw what constant speed looks like on a distance/time and speed/time graph...
What is the sentence to help remember the signs of a Chemical Change?
What sign does each word stand for?
Cougar Guys/Gals Like To Party On Saturday?
Color, Gas Bubbles, Light, Temperature, Odor, Sound
Used in LED displays, MRIs, generator magnets, and hybrid vehicle batteries.
What are 3 common types of forces that affect movement on Earth?
Gravity, Friction, and Air Resistance
Give an example of Newton's 3 Laws about being in the 8th grade hallway.
Teacher will decide.
In a distance time graph draw the following:
Mrs. Espindola left her house at 7:05am in Brownsville and heads to Los Fresnos. She Stops at LFE to drop off her son for 5 minutes and then heads to LCMS at a slow speed. She stays at LCMS until its time to head home at 4pm.
Teacher will decide.
What are the reactants and products in the photosynthesis chemical formula? What part of photosynthesis formula represents the Yield?
Products are Glucose and oxygen.
Yield is Sunlight.