Physics, Math) 188 Questions
With Complete Solutions.
Course
AC-HPAT
Question 1 Biology
Which organelle is primarily responsible for ATP production in eukaryotic cells?
A. Ribosome
B. Nucleus
C. Mitochondrion
D. Golgi apparatus
Correct Answer:
C. Mitochondrion
Complete Solution:
The mitochondrion is known as the "powerhouse of the cell" because it generates ATP through
cellular respiration.
Ribosomes synthesize proteins.
Nucleus contains genetic material.
Golgi apparatus modifies and packages proteins.
Final Answer: C
Question 2 (Biology)
A person with blood type AB can receive blood from:
A. Type A only
B. Type B only
C. Type O only
D. Types A, B, AB, and O
Correct Answer:
D. Types A, B, AB, and O
Complete Solution:
,Individuals with AB blood have both A and B antigens and no anti-A or anti-B antibodies.
Therefore, they can safely receive blood from all ABO blood groups.
Final Answer: D
Question 3 (Chemistry)
What is the molar mass of H₂SO₄?
A. 98 g/mol
B. 96 g/mol
C. 100 g/mol
D. 88 g/mol
Correct Answer:
A. 98 g/mol
Complete Solution:
Atomic masses:
H=1
S = 32
O = 16
Calculation:
(2×1)+(1×32)+(4×16)(2 \times 1)+(1 \times 32)+(4 \times 16)(2×1)+(1×32)+(4×16)
2+32+64=982+32+64=982+32+64=98
Therefore:
Molar Mass=98 g/mol\text{Molar Mass}=98\ g/molMolar Mass=98 g/mol
Final Answer: A
Question 4 (Chemistry)
What is the pH of a solution with a hydrogen ion concentration of 1×10−41 \times 10^{-
4}1×10−4 M?
A. 2
B. 3
,C. 4
D. 5
Correct Answer:
C. 4
Complete Solution:
Formula:
pH=−log[H+]pH=-\log[H^+]pH=−log[H+]
Substitute:
pH=−log(10−4)pH=-\log(10^{-4})pH=−log(10−4) pH=4pH=4pH=4
Final Answer: C
Question 5 (Physics)
A force of 20 N acts on an object with a mass of 5 kg. What is its acceleration?
A. 2 m/s²
B. 4 m/s²
C. 5 m/s²
D. 10 m/s²
Correct Answer:
B. 4 m/s²
Complete Solution:
Newton's Second Law:
F=maF=maF=ma
Rearrange:
a=Fma=\frac{F}{m}a=mF
Substitute values:
a=205a=\frac{20}{5}a=520 a=4 m/s2a=4\ m/s^2a=4 m/s2
Final Answer: B
, Question 6 (Physics)
A wave has a frequency of 50 Hz and a wavelength of 6 m. What is its speed?
A. 200 m/s
B. 250 m/s
C. 300 m/s
D. 350 m/s
Correct Answer:
C. 300 m/s
Complete Solution:
Wave equation:
v=fλv=f\lambdav=fλ
fff
Hz
λ\lambdaλ
m
f is frequency; λ is wavelength; v is wave speed.
v=fλ=2×3=6 m/sv=f\lambda=2\times 3=6\,\text{m/s}v=fλ=2×3=6m/s
λ
Substitute:
v=(50)(6)v=(50)(6)v=(50)(6) v=300 m/sv=300\ m/sv=300 m/s
Final Answer: C
Question 7 (Math)
Solve:
3x−7=113x-7=113x−7=11
A. 4
B. 5
C. 6
D. 7