PSA Exam Questions With Correct Answers

PSA Exam Questions With Correct
Answers
The ||SI ||base ||unit ||of ||mass ||is ||the______ ||- ||CORRECT ||ANSWER✔✔-Kilogram



A ||measurement ||must ||include ||both ||a ||number ||and ||a ||_____ ||- ||CORRECT ||ANSWER✔✔-Unit



AN ||experiment ||in ||which ||only ||one ||variable, ||the ||manipulated ||variable, ||is ||changed ||at ||a ||
time, ||is ||called ||_____-- ||- ||CORRECT ||ANSWER✔✔-Controlled ||experiment



The ||____ ||is ||the ||variable ||that ||changes ||in ||response ||to ||the ||manipulated ||variable. ||- ||
CORRECT ||ANSWER✔✔-Responding ||varible



______ ||properties ||can ||be ||observed ||only ||when ||the ||substance ||in ||a ||sample ||of ||matter ||
arwe ||changing ||into ||diffferent ||substances. ||- ||CORRECT ||ANSWER✔✔-Chemical



A ||solid ||that ||forms ||and ||seperates ||from ||a ||liquid ||is ||a ||_______ ||- ||CORRECT ||ANSWER✔✔-
percipitate



Matter ||that ||always ||has ||exactly ||the ||same ||compostiion ||is ||classified ||as ||a ||______ ||- ||
CORRECT ||ANSWER✔✔-pure ||substance



Pure ||substances ||are ||either ||_______ ||or ||______ ||- ||CORRECT ||ANSWER✔✔-elements ||of ||
compounds



If ||the ||particles ||in ||a ||mixturew ||scatter ||light, ||the ||mixture ||is ||either ||a ||____ ||or ||a ||____ ||- ||
CORRECT ||ANSWER✔✔-Suspension ||or ||colloid

, If ||a ||spoon ||gets ||hot ||quickly ||when ||it ||is ||used ||to ||stir ||a ||pot ||of ||soup, ||it ||is ||probably ||made ||
of ||______ ||- ||CORRECT ||ANSWER✔✔-metal



A ||material ||used ||for ||electrical ||wiring ||would ||need ||to ||have ||good ||____ ||- ||CORRECT ||
ANSWER✔✔-conductivity



______ ||is ||process ||that ||could ||be ||used ||to ||seperate ||dissolved ||particles ||from ||the ||liquid ||in ||
a ||solution. ||- ||CORRECT ||ANSWER✔✔-distillation



A ||___ ||change ||occurs ||when ||a ||material ||changes ||shape ||or ||size ||but ||the ||composition ||of ||the
||material ||does ||not ||change. ||- ||CORRECT ||ANSWER✔✔-phase




______ ||properties ||can ||be ||observed ||only ||when ||the ||substances ||in ||a ||sample ||of ||matter ||are
||changing ||into ||different ||substances ||- ||CORRECT ||ANSWER✔✔-physical




A ||solid ||that ||forms ||and ||seperates ||from ||a ||liquid ||mixture ||is ||a ||____ ||- ||CORRECT ||
ANSWER✔✔-percipate



when ||a ||metal ||changes ||color ||because ||it ||has ||been ||heated, ||a ||____ ||change ||occured. ||when
||a ||metal ||changes ||color ||because ||it ||has ||reacted ||with ||another ||substance, ||a ||_____ ||chance ||


occured ||- ||CORRECT ||ANSWER✔✔-physical, ||chemical



A ||___ ||has ||a ||definate ||volume ||and ||a ||definate ||shape. ||- ||CORRECT ||ANSWER✔✔-Solid



Materials ||can ||be ||classified ||as ||solids, ||liquids, ||or ||gasses ||based ||on ||whether ||thier ||shapes ||
and ||____ ||are ||definiate ||or ||variable. ||- ||CORRECT ||ANSWER✔✔-volumes



The ||shape ||of ||a ||material ||remians ||constant ||when ||it ||is ||moved ||from ||one ||container ||to ||
another. ||This ||material ||is ||a ||____ ||- ||CORRECT ||ANSWER✔✔-solid