FTCE MIDDLE GRADES SCIENCE 5-9 EXAM LATEST 2024-2025 ACTUAL EXAM 400
QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES
Which of the properties listed below is a characteristic of a liquid but
not of a gas?
A. It has the ability to flow.
B. It maintains its volume in an open container.
C. Its molecules are constantly in motion.
D. Its volume varies depending on temperature. - ANSWER-B
A 0.100 m3 chamber is filled with oxygen gas at standard conditions
(101 kPa at 273 k). Assuming ideal conditions and behavior, what will
be the pressure of the gas in the chamber after it is heated to 819 k?
A. 34 kPa
B. 51 kPa
C. 202 kPa
D. 303 kPa - ANSWER-D
In 1898, J.J. Thomson provided the first hard evidence for the
existence of subatomic particles in the atom by using a cathode ray
tube to discover the A. proton.
B. neutron.
C. electron.
D. nucleus. - ANSWER-C
,If all of the atoms in a substance have the same atomic number, the
substance is a(an) A. compound.
B. element.
C. mixture.
D. alloy. - ANSWER-B
The balanced chemical equation for the formation of iron (III) oxide is
A. Fe + O2 -> FeO2.
B. 4Fe + 3O2 -> 2Fe2O3.
C. 3Fe + O2 -> Fe3O2.
D. Fe + O -> FeO. - ANSWER-B
Small molecules that contain H bonded to O have higher boiling
points than similar molecules in which H is bonded to S. Why does
this change occur?
A. The H to O bond is nonpolar.
B. The H to S bond is more polar than the H to O bond.
C. The H to O bond is more polar than the H to S bond.
D. The H to S bond is nonpolar. - ANSWER-C
A + B -> AB What type of reaction is given above?
A. combination
B. decomposition
C. double displacement
D. single displacement - ANSWER-A
,According to Hooke's Law, the relationship between the elastic force
and the distance of stretch for an elastic material is A. inversely
proportional.
B. directly proportional.
C. exponential.
D. power squared. - ANSWER-B
A ball rolls off a horizontal table and hits the floor at a faster vertical
speed than when it leaves the table. This is an example of which
law of objects in motion? A. Newton's 1st law
B. Newton's 2nd law
C. Kepler's 1st law
D. Kepler's 2nd law - ANSWER-B
The pitch of a car's horn changes as the car approaches. This is an
example of
A. constructive interference.
B. destructive interference.
C. diffraction.
D. the Doppler effect. - ANSWER-D
Two identical objects with identical electrostatic charges will A.
repel one another.
B. attract one another.
C. have no effect on each other.
D. emit a spark. - ANSWER-A
, The device that converts electric energy to mechanical energy by the
use of magnetic forces is a (an) A. generator.
B. transformer.
C. motor.
D. rectifier. - ANSWER-C
Which phase change releases energy?
A. melting
B. evaporation
C. condensation
D. sublimation - ANSWER-C
Which of the following contains the greatest amount of thermal
energy? A. burning candle
B. cup of coffee
C. oak tree
D. lake - ANSWER-D
The input electrical energy of an overhead projector results in light
emission, heat emission, and mechanical motion of the fan. This is a
demonstration of A. conservation of energy.
B. excess input energy.
C. decrease in entropy.
D. total loss of energy. - ANSWER-A
The splitting of the nucleus of U-235 into two or more fragments is
called
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