Lab Safety And Energy Sources
How is hydropower used as an energy source?
conversion of energy from flowing water into electricity
What is the formula for speed?
Distance / time
What is the formula for force?
Force = mass X acceleration
Heat Energy is transferred between objects how many ways and name the heat transfer.
three
Conduction
Convection
Radiation
An atom has two main parts.
Nucleus
Electron cloud
Is oil a renewable or a Nonrenewable energy source?
Nonrenewable
What is velocity?
speed with direction
What is Newton's First Law of Motion?
An object at rest will remain at rest and an object in motion will remain in motion (in a straight line at constant speed) unless acted on by an unbalanced force.
What is matter?
Anything that has mass and takes up place.
Atomic Number =
number of protons
How is the oil used as an energy source?
Oil is burned to heat water to create steam to generate electricity.
What is acceleration?
The rate of change in velocity of an object
Anytime you change your speed OR direction, you will accelerate
What is force?
Push or pull one body exerts on another.
What is Physical Properties:
Any characteristic of a material that you can observe without changing the identity of the substance that makes up the material.
Examples: texture, shape, size, color, odor, volume, mass, weight, and density.
Mass Number or Atomic Mass =
Protons + neutrons
If you have long hair what are you supposed to do before starting any experiments in the Lab?
tie back long hair
Momentum depends on which two variables?
Mass and Velocity
What is Newton's Second Law of Motion?
The acceleration of an object is directly proportional to the force acting on it and inversely proportional to its mass.
What is Buoyancy?
the measure of the upward pressure a fluid (liquid or gas) exerts on an object
GROUPS:
Found vertically (columns)
same number of outer Valence electrons.
What equipment should be used when measuring the volume of the liquid?
Graduated Cylinder
Acceleration can be
+ (speeding up)
or
– (slowing down)
True
A rocket taking off into space:
What is the action force (what causes the rocket to move)?
What is the reaction force?
Newton's 3rd Law Of Motion
The rocket fuel burns and sends out hot gases!
The rocket launches into space!
What is Viscosity?
A fluid’s resistance to flow (how easy it is to pour)
The Periodic Table is broken into basic categories of elements.
metals
Nonmetals
Metalloids