NLN PAX Science Prep 2026/2027 –
Practice Questions & Answers | A+ Graded
Complete Study Guide
1 of 50
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of
heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively.
Compared to X, Ymust have a lower - correct answer-specific heat.
2 of 50
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide
containing a large number of swimming paramecium. Under this condition, which
of these behaviors of the paramecia will be observed? - correct answer-They will
eventually all swim away from the ammonium hydroxide.
3 of 50
A method for determining the blood alcohol content of a subject is to - correct
answer-use a Breathalyzer.
,4 of 50
A person blows his breath into a straw that is placed in limewater. The limewater
becomes cloudy because the person's breath contains - correct answer-carbon
dioxide
5 of 50
A person who was in an auto accident has formed a blood clot at the site of the
injury. One event that can lead to formation of a blood clot is that - correct
answer-ruptured platelets release thromboplastin.
6 of 50
A woman suddenly chokes on a piece of food and clutches frantically at her
throat. An immediate remedy is to - correct answer-apply quick, hard pressures
successively to her abdomen, just beneath her diaphragm.
7 of 50
Human testes produce - correct answer-spermatozoa
8 of 50
, If the medulla of the brain in a human was damaged, which of these conditions
would most likely result? - correct answer-Difficulty in breathing.
9 of 50
In varieties of matter, the term heterogeneous may be applied to - correct
answer-mixtures, but not elements or compounds.
10 of 50
Heat energy is absorbed in which of these phase changes? - correct answer-Br2 (l)
-> Br2(g)
11 of 50
Iodized salt is used to prevent a human condition known as - correct answer-
goiter
12 of 50
Periodontitis is an inflammatory condition of the - correct answer-gum tissue that
surrounds the neck of each tooth
The bending of a wave around an obstacle is known as - correct answer-
diffraction
Practice Questions & Answers | A+ Graded
Complete Study Guide
1 of 50
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of
heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively.
Compared to X, Ymust have a lower - correct answer-specific heat.
2 of 50
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide
containing a large number of swimming paramecium. Under this condition, which
of these behaviors of the paramecia will be observed? - correct answer-They will
eventually all swim away from the ammonium hydroxide.
3 of 50
A method for determining the blood alcohol content of a subject is to - correct
answer-use a Breathalyzer.
,4 of 50
A person blows his breath into a straw that is placed in limewater. The limewater
becomes cloudy because the person's breath contains - correct answer-carbon
dioxide
5 of 50
A person who was in an auto accident has formed a blood clot at the site of the
injury. One event that can lead to formation of a blood clot is that - correct
answer-ruptured platelets release thromboplastin.
6 of 50
A woman suddenly chokes on a piece of food and clutches frantically at her
throat. An immediate remedy is to - correct answer-apply quick, hard pressures
successively to her abdomen, just beneath her diaphragm.
7 of 50
Human testes produce - correct answer-spermatozoa
8 of 50
, If the medulla of the brain in a human was damaged, which of these conditions
would most likely result? - correct answer-Difficulty in breathing.
9 of 50
In varieties of matter, the term heterogeneous may be applied to - correct
answer-mixtures, but not elements or compounds.
10 of 50
Heat energy is absorbed in which of these phase changes? - correct answer-Br2 (l)
-> Br2(g)
11 of 50
Iodized salt is used to prevent a human condition known as - correct answer-
goiter
12 of 50
Periodontitis is an inflammatory condition of the - correct answer-gum tissue that
surrounds the neck of each tooth
The bending of a wave around an obstacle is known as - correct answer-
diffraction
