Скачать или смотреть CSCA Physics MCQ | Force and Acceleration (Newton’s Law)

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In this video, we solve a CSCA Physics MCQ based on Newton’s Second Law of Motion, one of the most fundamental and frequently tested concepts in the CSCA Physics Exam 2025.

📌 Question:
A 2 kg block rests on a frictionless horizontal surface.
A force of 8 N is applied horizontally.
What is the acceleration of the block?

This question checks your understanding of:
✔ Newton’s Second Law
✔ Relationship between force, mass, and acceleration
✔ Motion on a frictionless surface
✔ Correct unit usage in physics

✅ Step-by-step exam-friendly solution

Step 1: Write down the given values

Mass of the block:

𝑚
=
2
 
kg
m=2kg

Applied force:

𝐹
=
8
 
N
F=8N

Since the surface is frictionless, there is no opposing force.

✅ Step 2: Apply Newton’s Second Law

Newton’s Second Law:

𝐹
=
𝑚
𝑎
F=ma

Rearranging for acceleration:

𝑎
=
𝐹
𝑚
a=
m
F
​

✅ Step 3: Substitute the values
𝑎
=
8
2
a=
2
8
​

𝑎
=
4
 
m/s
2
a=4m/s
2
✅ Final Answer
𝑎
=
4
 
m/s
2
a=4m/s
2
​


📌 Correct Option: B

🎯 Exam Tips for CSCA Physics

• “Frictionless” means no resistive force
• Always apply F = ma directly in such questions
• These MCQs are usually easy and fast scoring
• Check units: N / kg always gives m/s²

📚 This video is part of our One MCQ – One Concept CSCA Physics Shorts series.
Subscribe for more CSCA Physics MCQs, Newton’s laws, kinematics tricks, and exam-focused short explanations.


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