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Physics
Chemistry
Biology
100
What type of simple machine is a seesaw on a playground? A: inclined plane B: pulley C: wedge D: lever
D: lever
100
In a solution, the hotter the solvent ....... a)No more of the soluble solid dissolves b)The less the solute dissolves c)The quicker the soluble solid dissolves d)The slower the solute dissolves
c)The quicker the soluble solid dissolves
100
The small intestine has special structures, called villi, which help absorption of digested food. Which of the following is NOT a feature? a)Good blood supply b)Impermeable walls c)Large surface area d)Thin layer of cells
b)Impermeable walls
200
Which law states the need to wear seatbelts? A: Newton's First Law B: Newton's Second Law C: Newton's Third Law D: none of the above
A: Newton's First Law
200
The filament of a light bulb consists of the metal ....... a)aluminium b)iron c)silver d)tungsten
d)tungsten
200
Which of the following is NOT caused by a virus? a)Cold b)Flu c)HIV d)Tetanus
d)Tetanus
300
The energy transferred from one form to another, during the lighting of a LED in a torch, is following which path? a)Radiant Energy > Electrical Energy > Chemical Potential Energy > Radiant Energy b)Radiant Energy > Chemical Potential Energy > Radiant Energy >Electrical Energy c)Chemical Potential Energy > Radiant Energy> Electrical Energy > Radiant Energy d)Chemical Potential Energy > Electrical Energy > Radiant Energy
d)Chemical Potential Energy > Electrical Energy > Radiant Energy
300
During a chemical reaction new substances are formed from old ones. Which of the following is NOT true? a)New substances can be changed back to the original ones b)The total mass of products = total mass of reactants c)There is often a colour change d)There is often a temperature change
a)New substances can be changed back to the original ones
300
A polar bear is adapted to live in the arctic. Which of the following is NOT true? a)They have a thick layer of fat for insulation b)They have big feet to produce high pressure on the snow c)They have waterproof fur for insulation when in water d)Their fur looks white to blend in with their surroundings
b)They have big feet to produce high pressure on the snow
400
Which is the best conductor of sound? a)Water b)Air c)Steel d)Butter e)Helium gas
c) Steel
400
The following elements are named after famous scientists except ....... a)curium b)einsteinium c)nobelium d)uranium
d)uranium
400
Which type of cell can produce antibodies? a)Blood plasma b)Muscle cells c)Red blood cells d)White blood cells
d)White blood cells
500
Which of the following is not an example of conduction of heat? a)Heat from the Sun warming the Earth b)An ice cube melting in your hand c)Heating up a frying pan on the stove d)A cooler filled with ice cooling down some drinks e)Defrosting frozen meat with running water
a)Heat from the Sun warming the Earth
500
Why is it cheaper to recycle metals than to extract them from their ore? a)It can be done closer to where the metals are thrown away b)Transporting scrap metal is cheaper than transporting the ore c)The people who do the recycling are paid less than people who extract metals from the ores d)There are far less processes involved in recycling than in extracting metal from an ore
d)There are far less processes involved in recycling than in extracting metal from an ore
500
Which poisonous gas is present in smoker's smoke? a)Carbon dioxide b)Carbon monoxide c)Hydrogen d)Sulphur dioxide
b)Carbon monoxide