Biology
What is the powerhouse of the cell?
The mitochondria
Name this ionic compound: NaCl
Sodium chloride
Who discovered the laws of motion?
Isaac Newton
Which planet has the most moons?
Jupiter
List 3 animals that are known for regenerating body parts
[possible answers] starfish, flatworms, lizards, frogs, sea cucumber, sea sponge, sea slug
Name the 3 types of symbiotic relationships
Parasitism, commensalism, mutualism
What is the particle theory of matter?
- All matter is made of particles
- Particles have lots of space between them
- Particles are always moving
- Particles are attracted to each other
- All particles of the same substance are identical and different from particles of other substances
Lighting is an example of what type of electricity?
Static electricity
How long ago was the Big Bang?
13.8 billion years ago
Which 2 gases are most explosive at high temperatures?
Hydrogen and oxygen
What is the difference between osmosis and diffusion?
Diffusion: Chemicals move by diffusion; an area of higher concentration moves to an area of lower concentration (the particles move)
Osmosis: Water moves by osmosis; the water moves from an area of low concentration to an area of high concentration.
What are the diatomic molecules?
HOFBrINCl (Hydrogen, Oxygen, Fluorine, Bromine, Iodine, Nitrogen, Chlorine)
What is the difference between an AC current and a DC current?
In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically.
Who is credited for the discovery/proposal of the heliocentric model of the universe?
Nicolaus Copernicus
What material are hair and nails made of?
Keratin
Muscle tissue (ex. bicep), nervous tissue (ex. brain), connective tissue (ex. bones), epithelial tissue (ex. skin)
What happens when an acid and carbonate are mixed?
CO2, water (H20), and an ionic compound are produced
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
a = 8.10 m/ s2
What colour star is the coolest?
Red stars
What causes the seasons to change on earth?
The tilt of the Earth towards the sun (not the Earth's distance from the sun)
What are the two types of viral reproduction?
Lytic and lysogenic
A sample contains 1.25 mol of nitrogen dioxide. How many molecules are in the sample? Avogadro’s constant = 6.02*1023
7.53 * 1023 molecules
A stone is dropped into a deep well and is heard to hit the water 3.41 s after being dropped. Determine the depth of the well.
d = -57.0 m (57.0 meters deep)
What is the name of the moon phase right after the full moon?
Waning gibbous
Name all 11 human body systems
Musculoskeletal, respiratory, cardiovascular/circulatory, reproductive, immune, nervous, digestive, endocrine, lymphatic, urinary, integumentary (skin)