physics 2
What is a object that attracts metal called?
What organ is responsible for breathing?
The lungs
What is the largest country in the world?
Russia
What is a substance with a pH lower than 7
An acid
What is the unit of force?
Newton (N)
What is the unit of electrical current?
Ampere (A)
Which organ circulates blood?
The heart
What is the capital of the United States?
Washington D.C.
What happens when acid reacts with an alkali?
Salt and water is formed.
P = F/A
What is Ohm's Law?
V = IR
Skin
India
What is osmosis?
water potential (explain)
Moment = force x perpendicular distance
Name the four methods of energy transfer
Mechanically, by Heating, Electrically, Radiation
What enzyme is in saliva that breaks down starch?
Salivary amylase
Name all Canadian provinces
Pick any correct answer.
If the enthalpy of a reaction is negative is its activation energy lower or higher (exothermic or endothermic)
exothermic
What is Avogadro's Number?
6.02 x 10^23
Why are certain atoms radioactive?
Any answer with (unstable atomic structure, half-life, tendency to decay, etc.)
The egg/ovum
What is the northernmost city with over 1,000,000 people?
Saint Petersburg
If Aluminum (Al) and dilute sodium hydroxide (NaOH) react, what are the products?
AlNaO2 (sodium metalaluminate) + H2 gas
Name the formula for change in pressure with change in depth
ΔP = Δρgh