Gravitation is one of the most predictable and scoring chapters in NEET Physics. The majority of questions are formula-based and revolve around standard models like gravitational force, potential, field, escape velocity, and satellite motion. If you consistently practice Physics Gravitation PYQs Quick Notes, you will notice that questions follow repetitive patterns, making this chapter highly scoring with minimal effort.

This article combines quick notes + top PYQs with detailed solutions, helping you revise the entire chapter efficiently. Mastering Physics Gravitation PYQs Quick Notes ensures accuracy in direct formula-based questions and builds confidence for conceptual numericals.

Physics Gravitation Quick Notes

Before solving Physics Gravitation PYQs Quick Notes, revise these key formulas:

• Gravitational Force:

$$F = \frac{GMm}{r^2}$$F=r2GMm​

• Gravitational Field:

$$g = \frac{GM}{r^2}$$g=r2GM​

• Potential:

$$V = -\frac{GM}{r}$$V=−rGM​

• Potential Energy:

$$U = -\frac{GMm}{r}$$U=−rGMm​

$v_e = \sqrt{\frac{2GM}{R}}$ve​=R2GM​​

• Orbital Velocity:

$$v = \sqrt{\frac{GM}{r}}$$v=rGM​​

• Time Period:

$$T = 2\pi \sqrt{\frac{r^3}{GM}}$$T=2πGMr3​​

These formulas form the backbone of most Physics Gravitation PYQs Quick Notes.

Top Physics Gravitation PYQs (With Detailed Solutions)

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1) Gravitational force between two masses

Two masses 2 kg and 5 kg are separated by 1 m. Find gravitational force. Take $G = 6.67 \times 10^{-11}$G=6.67×10−11.

Solution

$$F = \frac{GMm}{r^2} = \frac{6.67\times10^{-11} \times 10}{1}$$F=r2GMm​=16.67×10−11×10​ $$F = 6.67\times10^{-10}\text{ N}$$F=6.67×10−10 N

Answer: 6.67×10−106.67 \times 10^{-10}6.67×10−10 N

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2) Acceleration due to gravity at height

At height equal to Earth’s radius, find $g’$g′.

Solution

$$g’ = \frac{g}{(1+1)^2} = \frac{g}{4}$$g′=(1+1)2g​=4g​

Answer: g/4g/4g/4

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3) Gravitational potential

Find potential at distance 2R from Earth.

Solution

$$V = -\frac{GM}{2R} = \frac{V_{\text{surface}}}{2}$$V=−2RGM​=2Vsurface​​

Answer: Half of surface value

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4) Escape velocity

Find escape velocity from Earth (g=10, R=6400 km).

Solution

$$v_e = \sqrt{2gR}$$ve​=2gR​ $$v_e \approx 11.2\text{ km/s}$$ve​≈11.2 km/s

Answer: 11.2 km/s

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5) Orbital velocity

Find orbital velocity near Earth’s surface.

Solution

$$v = \sqrt{gR} \approx 7.9\text{ km/s}$$v=gR​≈7.9 km/s

Answer: 7.9 km/s

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6) Relation between escape and orbital velocity

Solution

$$v_e = \sqrt{2}v$$ve​=2​v

Answer: 2\sqrt{2}2​ times

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7) Time period of satellite

If orbital radius increases, what happens to time period?

Solution

$$T \propto r^{3/2}$$T∝r3/2

Answer: Increases

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8) Gravitational field zero

Where is gravitational field zero between two equal masses?

Solution

At midpoint.

Answer: Midpoint

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9) Potential inside Earth

Solution

Potential varies linearly.

Concept Answer

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10) Weightlessness

When does astronaut feel weightless?

Solution

In orbit, free fall condition.

Answer: Free fall

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11) Energy of satellite

Solution

$$E = -\frac{GMm}{2r}$$E=−2rGMm​

Concept Answer

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12) Change in g with depth

Solution

$$g \propto r$$g∝r

Answer: Decreases linearly

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13) Satellite energy relation

Solution

$$E = -\frac{1}{2}K$$E=−21​K

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14) Potential energy sign

Solution

Always negative.

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15) Escape energy

Solution

$$E = \frac{GMm}{R}$$E=RGMm​

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Quick Revision – Physics Gravitation PYQs Quick Notes

To quickly revise Physics Gravitation PYQs Quick Notes, remember:$$F = \frac{GMm}{r^2}$$F=r2GMm​ $$g = \frac{GM}{r^2}$$g=r2GM​ $$V = -\frac{GM}{r}$$V=−rGM​ $$v = \sqrt{gR}$$v=gR​ $$v_e = \sqrt{2gR}$$ve​=2gR​

These formulas solve most Physics Gravitation PYQs Quick Notes instantly.

Most Important NEET Patterns

From analysis of Physics Gravitation PYQs Quick Notes, NEET commonly asks:

• Escape velocity
• Orbital velocity
• Satellite motion
• Variation of g
• Gravitational potential

Practicing these Physics Gravitation PYQs Quick Notes ensures strong performance in this chapter.

Final Takeaway

The key to mastering Physics Gravitation PYQs Quick Notes is recognizing that most questions are direct formula applications. Unlike other chapters, derivations are less important than formula clarity and unit handling.

If you revise these Physics Gravitation PYQs Quick Notes properly, you can confidently solve almost every NEET question from this chapter in under a minute.

FAQ – Physics Gravitation PYQs Quick Notes

1. Why are Physics Gravitation PYQs Quick Notes important?

They help identify repeated NEET patterns and improve speed.

2. Which topics are most important?

Escape velocity, orbital motion, and gravitational field.

3. How many questions come in NEET?

Usually 1–2.

4. Is gravitation easy?

Yes, one of the easiest chapters if formulas are clear.