Biology & Medicine
A cell has a cell wall. Is it an animal or plant cell?
Plant
In which state of matter do particles have the most energy?
Apart from coal and oil, what is the other major fossil fuel?
What kind of energy does an object have due to its movement?
Kinetic
What are the two types of wave?
Transverse and longitudinal
Pathogen
An atom has the atomic number of 9 and the mass number of 19. How many neutrons does it have?
Incomplete combustion happens when there is a lack of what?
Oxygen
Which law tells us that energy cannot be created or destroyed?
The law of the conservation of energy.
Put these waves in order of speed, fastest first: Water, light, sound.
Light, sound, water.
What do white blood cells produce to fight disease?
Antibodies/Antitoxins
What is the overall charge of an atom?
Zero
What do we call the process where we separate the fractions in crude oil?
Fractional distillation
A parachutist jumps out of a plane. Name all the forces that are acting on him.
Gravity and air resistance.
What is the unit of frequency?
Hertz
An insect appears to be 50mm long through a microscope with 20x magnification. How long is it really?
2.5mm
Two or more elements that are not chemically bonded form what?
A mixture
What is the most common gas in the atmosphere?
Nitrogen
What is the efficiency of a lightbulb that takes in 200J of energy, and releases 50J of that energy in heat?
75%
What category of EM radiation has the longest wavelength after violet?
Indigo
What is the scientific term for the tail of a bacterium?
Flagellum
An alkane with 8 carbon atoms will have how many hydrogen atoms?
18
What two products do we get when we burn methane?
Carbon dioxide and water
A tennis ball is 2 metres off the ground. It is lifted to 6 metres off the ground. What does this do to its GPE?
a) double it
b) triple it
c) nothing
B) triple it
What does the amplitude of a sound wave tell us?
Its volume