PICAT Exam Questions and Answers (Graded A)

regeneration in man is limited to .. - Answer- healing of wounds satellite - Answer- any astronomical body that revolves around a larger body in chemistry, to be classified as an organic substance, it must contain - Answer- carbon atoms according to their locations on the periodic table, Argon(AR) & Neon(NE) are - Answer- noble gases which of these reduces friction? - Answer- ball bearings When a lobster grows a claw to replace one that was lost, the process is called? - Answer- regeneration which element does not contain any neutrons? - Answer- Hydrogen the chemical formula of a compound describes the elements the compiund contains and the .. - Answer- ratio of neutrons to protons in each element how many atoms are in a single molecule of water (H2O)? - Answer- 2 which of the following is a renewable resource? - Answer- peanut oil when scientists measure a liquid resistance to flow, they are measuring the liquids - Answer- viscosity the filament in an electric light bulb is made of - Answer- tungsten a human skin cell divides by - Answer- mitosis a perpetual motion machine can never be built because it is not possible to eliminate - Answer- inertia by definition, an aquifer is - Answer- river bottom made up of gravel and sedinentary rock which of the following is the best explanantion of how a smooth round stone became smooth? - Answer- it was in a stream for a long time to test effectiveness of plant fertilizer, groups of plants are grown with different types of fertilizer. a control group of planst would - Answer- not bw given any fertilizer which of the following reproduce by spawning - Answer- fish which of the following is the best illustration of centripetal force - Answer- ice skater spinning on ice in a balanced aquatic ecosystem, which of the following would have the greatest population? - Answer- plankton which of the following presents the stages of of the water cycle in the correct order. - Answer- sunlight heats pond water, evaporation occurs, water vapor cools, condensation occurs, precipitation occurs If you place bean seeds between moist paper towels and watch the stem leaves appear you will see a demonstration of? - Answer- germination water droplets - Answer- condensation construe - Answer- to interpret virulent - Answer- abrasive Spaces are placed between slabs of concrete in city sidewalks to? - Answer- Allow for expansion and contraction communique - Answer- message gear a is the driving gear, if all the teeth are sheared off of gear b, which gear(s) will turn? - Answer- gear a broach - Answer- to mention a series of four gears (W, X, Y, Z) is driven by pulley V & a belt. if V turns in the direction shown(counterclockwise), which gears will rotate clockwise - Answer- Y & W A box sits on a smooth table.Three strings are attached to the box,each having a weight of 10 lbs attached to the other end. The box will move in direction? - Answer- D unpretentious - Answer- simple Four weights are tied together and hung from the ceiling. What will be the tension in the cord at the point labeled x? - Answer- 60 pounds contentious - Answer- quarrelsome A spring will compress one inch for every 50 pounds of force that is applied to it.How much force is needed to compress the same spring 10 inches? - Answer- 500 pounds cajole - Answer- wheedle nepotism - Answer- hiring relatives a spring is compressed against a wall by a wooden block thaat has a force applied to it. if the force is removed from the block .. - Answer- the spring will move to the left which of these objects are placed on sand will sink the deepest? - Answer- A moratorium - Answer- a suspension decry - Answer- disparage a book is placed against a wall as shown, if the book slides down the wall at a constant speed, what two forces are acting on the book? - Answer- gravity and friction A belt passes over a drum and its ends are connected to springs,if the drum rotates in the direction shown and there is friction between the drum and the belt, then? - Answer- spring 1 will get shorter and spring 2 will get longer admonition - Answer- warning the gears in this gear train each have the same number of teeth. if gear A turns 300rpm, how fast will gear C turn? - Answer- 300rpm