MCQ Collection
china-gaokao-physics MCQs
Practice china-gaokao-physics questions with answers and explanations.
Correct Answer: 12
Explanation:
Newton’s second law gives F=ma=4×3=12 N.
Correct Answer: 32
Explanation:
K=½mv²=½×4×4²=32.0 J.
Correct Answer: 2
Explanation:
Ohm’s law gives I=V/R=8/4=2.000 A.
Correct Answer: 12
Explanation:
Wave speed v=fλ=4×3=12 m/s.
Correct Answer: 6
Explanation:
Newton’s second law gives F=ma=3×2=6 N.
Correct Answer: 13.5
Explanation:
K=½mv²=½×3×3²=13.5 J.
Correct Answer: 2.333
Explanation:
Ohm’s law gives I=V/R=7/3=2.333 A.
Correct Answer: 6
Explanation:
Wave speed v=fλ=3×2=6 m/s.
Choose an option to check your answer.
Correct Answer: B. The total momentum of an isolated system remains constant
Explanation:
In an isolated system, internal forces occur in equal and opposite pairs, so total momentum is constant.
Choose an option to check your answer.
Correct Answer: C. It is perpendicular to the direction of wave propagation
Explanation:
A transverse wave oscillates perpendicular to the direction in which the wave travels.
Choose an option to check your answer.
Correct Answer: A. The electric field points in the direction a positive test charge would accelerate
Explanation:
Electric-field direction is defined by the force direction on a positive test charge.
Correct Answer: 10.91
Explanation:
Speed=distance/time=120/11=10.91 m/s.
