HDFS 210 EXAM 2 2026-2027: VERIFIED EXAM QUESTIONS,
CORRECT ANSWERS & DETAILED DEVELOPMENTAL
RATIONALES – THE LATEST UPDATED DOCUMENT THAT
GUARANTEES YOUR A+ PASS ON THE VERY FIRST TRY
SECTION 1: PHYSICAL DEVELOPMENT (Questions 1-
15)
Q1. The greatest physical risk that preschoolers
face comes from __________.
A. Infectious diseases
B. Genetic disorders
C. Accidents
D. Malnutrition
Answer: C. Accidents
Rationale: Unintentional injuries (accidents) are the
leading cause of death and disability in preschool-
aged children. Their curiosity, limited judgment, and
developing motor skills make them vulnerable to
falls, drowning, burns, and poisoning .
1|Page
,Q2. As children grow, the two halves of the brain
become increasingly differentiated and specialized
in a process called __________.
A. Myelination
B. Lateralization
C. Synaptic pruning
D. Neurogenesis
Answer: B. Lateralization
Rationale: Lateralization refers to the specialization
of the left and right cerebral hemispheres. The left
hemisphere typically specializes in language and
logic, while the right hemisphere specializes in
spatial perception and emotion. This process
continues throughout childhood .
Q3. Which of the following statements about brain
development is true?
A. Brain growth is complete by age 2
B. Electrical activity decreases during rapid
development
2|Page
,C. Electrical activity increases during times of rapid
development
D. The brain stops changing after age 5
Answer: C. Electrical activity increases during times
of rapid development
Rationale: Brain development involves periods of
rapid growth where electrical activity increases. The
brain continues to develop and reorganize
throughout childhood, with myelination and
synaptic pruning ongoing processes .
Q4. Preschool-age boys typically excel sooner at
________, while girls typically excel sooner at
__________.
A. Balancing on one foot; throwing a ball
B. Throwing a ball; balancing on one foot
C. Running; jumping
D. Drawing; climbing
Answer: B. Throwing a ball; balancing on one foot
3|Page
, Rationale: Research shows that preschool-age boys
tend to develop skills like throwing a ball earlier,
while girls tend to develop balancing skills earlier.
These differences reflect both biological and social
influences on motor development .
Q5. By the end of the preschool years, most
children show __________, which is a clear
preference for using one hand over the other.
A. Lateral dominance
B. Handedness
C. Ambidexterity
D. Cross-dominance
Answer: B. Handedness
Rationale: Handedness (preference for right or left
hand) typically emerges by age 4-5. Approximately
90% of people are right-handed, reflecting the left
hemisphere's dominance for motor control .
4|Page
CORRECT ANSWERS & DETAILED DEVELOPMENTAL
RATIONALES – THE LATEST UPDATED DOCUMENT THAT
GUARANTEES YOUR A+ PASS ON THE VERY FIRST TRY
SECTION 1: PHYSICAL DEVELOPMENT (Questions 1-
15)
Q1. The greatest physical risk that preschoolers
face comes from __________.
A. Infectious diseases
B. Genetic disorders
C. Accidents
D. Malnutrition
Answer: C. Accidents
Rationale: Unintentional injuries (accidents) are the
leading cause of death and disability in preschool-
aged children. Their curiosity, limited judgment, and
developing motor skills make them vulnerable to
falls, drowning, burns, and poisoning .
1|Page
,Q2. As children grow, the two halves of the brain
become increasingly differentiated and specialized
in a process called __________.
A. Myelination
B. Lateralization
C. Synaptic pruning
D. Neurogenesis
Answer: B. Lateralization
Rationale: Lateralization refers to the specialization
of the left and right cerebral hemispheres. The left
hemisphere typically specializes in language and
logic, while the right hemisphere specializes in
spatial perception and emotion. This process
continues throughout childhood .
Q3. Which of the following statements about brain
development is true?
A. Brain growth is complete by age 2
B. Electrical activity decreases during rapid
development
2|Page
,C. Electrical activity increases during times of rapid
development
D. The brain stops changing after age 5
Answer: C. Electrical activity increases during times
of rapid development
Rationale: Brain development involves periods of
rapid growth where electrical activity increases. The
brain continues to develop and reorganize
throughout childhood, with myelination and
synaptic pruning ongoing processes .
Q4. Preschool-age boys typically excel sooner at
________, while girls typically excel sooner at
__________.
A. Balancing on one foot; throwing a ball
B. Throwing a ball; balancing on one foot
C. Running; jumping
D. Drawing; climbing
Answer: B. Throwing a ball; balancing on one foot
3|Page
, Rationale: Research shows that preschool-age boys
tend to develop skills like throwing a ball earlier,
while girls tend to develop balancing skills earlier.
These differences reflect both biological and social
influences on motor development .
Q5. By the end of the preschool years, most
children show __________, which is a clear
preference for using one hand over the other.
A. Lateral dominance
B. Handedness
C. Ambidexterity
D. Cross-dominance
Answer: B. Handedness
Rationale: Handedness (preference for right or left
hand) typically emerges by age 4-5. Approximately
90% of people are right-handed, reflecting the left
hemisphere's dominance for motor control .
4|Page
