C371 Concepts of Science Questions With
Correct Answers
A |substance |has |a |low |density |and |fills |its |container. |What |is |the |physical |state |of |the |
substance? |- |CORRECT |ANSWER✔✔-gas
A |substance |has |a |definite |volume |and |takes |the |shape |of |its |container. |What |is |the |physical |
state |of |the |substance? |- |CORRECT |ANSWER✔✔-liquid
A |substance |takes |the |shape |of |its |container |and |flows |easily. |It |is |not |easily |compressible. |
What |is |the |physical |state |of |the |substance? |- |CORRECT |ANSWER✔✔-liquid
Which |of |the |following |options |best |describes |this |illustration?
(Cube |of |spheres) |- |CORRECT |ANSWER✔✔-solid
Which |event |represents |a |chemical |change? |- |CORRECT |ANSWER✔✔-A |shovel |rusts
Which |property |is |a |chemical |property? |- |CORRECT |ANSWER✔✔-Flammability
Which |property |is |an |extensive |property |of |an |iron |bar? |- |CORRECT |ANSWER✔✔-length
What |does |the |law |of |conservation |of |matter |specify? |- |CORRECT |ANSWER✔✔-Total |mass |
stays |the |same |in |changes |of |state.
According |to |the |law |of |conservation |of |energy: |- |CORRECT |ANSWER✔✔-Total |energy |in |a |
closed |system |is |constant.
, Exactly |one |pound |of |bread |dough |is |placed |in |a |baking |tin. |The |dough |is |cooked |in |an |oven |at
|350ºF, |releasing |a |wonderful |aroma |of |freshly |baked |bread |during |the |cooking |process. |Which
|of |the |following |options |accurately |describes |the |mass |of |the |baked |loaf? |- |CORRECT |
ANSWER✔✔-The |mass |of |the |baked |loaf |is |less |than |the |mass |of |the |one |pound |of |the |
original |dough |because |a |gas |is |produced |during |the |baking |process. |The |gas |escapes |the |
dough |and |is |responsible |for |the |aroma |of |freshly |baked |bread.
Which |of |the |following |options |describes |a |change |in |potential |energy |only? |- |CORRECT |
ANSWER✔✔-A |leopard |waits |in |a |tree |in |order |to |more |easily |seek |prey.
As |a |dropped |ball |falls |to |the |ground, |what |is |happening? |- |CORRECT |ANSWER✔✔-It |is |
changing |potential |energy |into |kinetic |energy.
Which |situation |is |most |directly |associated |with |kinetic |energy? |- |CORRECT |ANSWER✔✔-A |
bowling |ball |is |rolled |down |a |lane.
The |metal |bleachers |at |a |football |stadium |heat |up |in |the |sun. |Which |of |the |following |options |
best |describes |the |type |of |energy |transfer |occurring |in |this |situation? |- |CORRECT |
ANSWER✔✔-Thermal |energy
How |would |you |classify |ammonia |(NH3)? |- |CORRECT |ANSWER✔✔-compound
Which |of |the |following |is |a |pure |substance? |- |CORRECT |ANSWER✔✔-aluminum |sulfate, |
Al2(SO4)3
How |would |you |classify |a |solution |of |potassium |iodide, |KI, |in |water? |- |CORRECT |ANSWER✔✔-
homogeneous |mixture
A |neutral |atom |has |a |mass |number |of |17 |and |8 |electrons. |Which |element |is |it? |- |CORRECT |
ANSWER✔✔-Oxygen
Correct Answers
A |substance |has |a |low |density |and |fills |its |container. |What |is |the |physical |state |of |the |
substance? |- |CORRECT |ANSWER✔✔-gas
A |substance |has |a |definite |volume |and |takes |the |shape |of |its |container. |What |is |the |physical |
state |of |the |substance? |- |CORRECT |ANSWER✔✔-liquid
A |substance |takes |the |shape |of |its |container |and |flows |easily. |It |is |not |easily |compressible. |
What |is |the |physical |state |of |the |substance? |- |CORRECT |ANSWER✔✔-liquid
Which |of |the |following |options |best |describes |this |illustration?
(Cube |of |spheres) |- |CORRECT |ANSWER✔✔-solid
Which |event |represents |a |chemical |change? |- |CORRECT |ANSWER✔✔-A |shovel |rusts
Which |property |is |a |chemical |property? |- |CORRECT |ANSWER✔✔-Flammability
Which |property |is |an |extensive |property |of |an |iron |bar? |- |CORRECT |ANSWER✔✔-length
What |does |the |law |of |conservation |of |matter |specify? |- |CORRECT |ANSWER✔✔-Total |mass |
stays |the |same |in |changes |of |state.
According |to |the |law |of |conservation |of |energy: |- |CORRECT |ANSWER✔✔-Total |energy |in |a |
closed |system |is |constant.
, Exactly |one |pound |of |bread |dough |is |placed |in |a |baking |tin. |The |dough |is |cooked |in |an |oven |at
|350ºF, |releasing |a |wonderful |aroma |of |freshly |baked |bread |during |the |cooking |process. |Which
|of |the |following |options |accurately |describes |the |mass |of |the |baked |loaf? |- |CORRECT |
ANSWER✔✔-The |mass |of |the |baked |loaf |is |less |than |the |mass |of |the |one |pound |of |the |
original |dough |because |a |gas |is |produced |during |the |baking |process. |The |gas |escapes |the |
dough |and |is |responsible |for |the |aroma |of |freshly |baked |bread.
Which |of |the |following |options |describes |a |change |in |potential |energy |only? |- |CORRECT |
ANSWER✔✔-A |leopard |waits |in |a |tree |in |order |to |more |easily |seek |prey.
As |a |dropped |ball |falls |to |the |ground, |what |is |happening? |- |CORRECT |ANSWER✔✔-It |is |
changing |potential |energy |into |kinetic |energy.
Which |situation |is |most |directly |associated |with |kinetic |energy? |- |CORRECT |ANSWER✔✔-A |
bowling |ball |is |rolled |down |a |lane.
The |metal |bleachers |at |a |football |stadium |heat |up |in |the |sun. |Which |of |the |following |options |
best |describes |the |type |of |energy |transfer |occurring |in |this |situation? |- |CORRECT |
ANSWER✔✔-Thermal |energy
How |would |you |classify |ammonia |(NH3)? |- |CORRECT |ANSWER✔✔-compound
Which |of |the |following |is |a |pure |substance? |- |CORRECT |ANSWER✔✔-aluminum |sulfate, |
Al2(SO4)3
How |would |you |classify |a |solution |of |potassium |iodide, |KI, |in |water? |- |CORRECT |ANSWER✔✔-
homogeneous |mixture
A |neutral |atom |has |a |mass |number |of |17 |and |8 |electrons. |Which |element |is |it? |- |CORRECT |
ANSWER✔✔-Oxygen
