| No. | Question | Answer |
|---|
| 47 | Sound needs | Medium |
| 48 | Frequency unit | Hertz |
| 49 | Human hearing range | 20 Hz – 20 kHz |
| 50 | Echo is due to | Reflection of sound
|
🔬 Physics — 50 Expected Questions (Set 2)
1️⃣ Units & Measurements
| No. | Question | Answer |
|---|
| 1 | SI unit of density | kg/m³ |
| 2 | SI unit of velocity | m/s |
| 3 | 1 hour = ? seconds | 3600 s |
| 4 | Scientific notation of 1000 | 10³ |
| 5 | Instrument to measure length | Meter scale |
2️⃣ Motion
| No. | Question | Answer |
|---|
| 6 | Uniform motion means | Constant speed |
| 7 | Non-uniform motion means | Changing velocity |
| 8 | Initial velocity is denoted by | u |
| 9 | Final velocity is denoted by | v |
| 10 | Acceleration due to gravity | 9.8 m/s² |
| 11 | Object at rest has velocity | Zero |
3️⃣ Laws of Motion
| No. | Question | Answer |
|---|
| 12 | SI unit of momentum | kg·m/s |
| 13 | Momentum formula | p = mv |
| 14 | Newton’s second law relates | Force & acceleration |
| 15 | Rocket works on principle of | Action–reaction |
| 16 | Inertia of rest example | Standing passenger falls backward |
4️⃣ Work, Energy & Power
| No. | Question | Answer |
|---|
| 17 | 1 Joule = | 1 N·m |
| 18 | Kinetic energy formula | ½mv² |
| 19 | Potential energy formula | mgh |
| 20 | Energy cannot be created/destroyed | Conservation of energy |
| 21 | Commercial unit of energy | kWh |
| 22 | 1 kWh = | 3.6 × 10⁶ J |
5️⃣ Heat & Thermodynamics
| No. | Question | Answer |
|---|
| 23 | Normal body temperature | 37°C |
| 24 | SI unit of heat | Joule |
| 25 | Device to measure temperature | Thermometer |
| 26 | Heat flows from | Hot to cold |
| 27 | Expansion due to heat | Thermal expansion |
6️⃣ Light (Optics)
| No. | Question | Answer |
|---|
| 28 | Speed of light | 3 × 10⁸ m/s |
| 29 | Laws of reflection are | 2 |
| 30 | Angle of incidence = | Angle of reflection |
| 31 | Convex mirror image | Virtual & diminished |
| 32 | Concave mirror can form | Real & virtual |
| 33 | Lens formula | 1/f = 1/v + 1/u |
| 34 | Unit of focal length | Meter |
7️⃣ Electricity
| No. | Question | Answer |
|---|
| 35 | Charge unit | Coulomb |
| 36 | 1 Ampere = | 1 C/s |
| 37 | Resistance depends on | Length of wire |
| 38 | Good conductor example | Copper |
| 39 | Fuse works on | Heating effect |
| 40 | Electric energy formula | P × t |
8️⃣ Magnetism
| No. | Question | Answer |
|---|
| 41 | Magnetic lines are | Closed curves |
| 42 | Earth behaves like | Magnet |
| 43 | Compass works on | Magnetic field |
| 44 | Unit of magnetic field | Tesla |
9️⃣ Sound
| No. | Question | Answer |
|---|
| 45 | Sound travels fastest in | Solids |
| 46 | Loudness depends on | Amplitude |
| 47 | Pitch depends on | Frequency |
| 48 | Unit of frequency | Hertz |
| 49 | Time period = | 1/frequency |
| 50 | Ultrasound frequency | > 20 kHz |
🔟 Sound (Waves)
-
Speed = Frequency × Wavelength → v = fλ
-
Frequency = 1 / Time period → f = 1/T
📌 Constants to Remember
-
Speed of light = 3 × 10⁸ m/s
-
g = 9.8 m/s²
-
Human hearing range = 20 Hz – 20 kHz
🎯 How to Use
-
Revise this daily (5–10 min)
-
Focus on formulas + units
-
Practice 10–15 numericals daily
📄 🔬 Physics Mock Test (100 Questions)
📝 Instructions
-
Each question has 4 options (A–D)
-
Select the correct answer
-
Negative marking applies (practice accuracy)
📘 Questions
1–20: Units, Motion
-
SI unit of force is:
A) Joule B) Newton C) Watt D) Pascal
-
1 km =
A) 100 m B) 1000 m C) 10 m D) 10000 m
-
Speed =
A) Time/Distance B) Distance/Time C) Acceleration/Time D) None
-
Unit of velocity:
A) m/s B) m² C) kg D) N
-
Acceleration formula:
A) v/t B) (v−u)/t C) u/t D) vt
-
Distance is:
A) Vector B) Scalar C) Both D) None
-
Velocity is:
A) Scalar B) Vector C) Constant D) Zero
-
v = u + at represents:
A) Force B) Motion C) Energy D) Heat
-
If u = 0, then motion is:
A) Uniform B) Rest initially C) Accelerated D) None
-
Area under v–t graph gives:
A) Speed B) Distance C) Acceleration D) Force
-
SI unit of time:
A) Minute B) Second C) Hour D) Day
-
SI unit of length:
A) cm B) km C) meter D) inch
-
1 hour =
A) 60 s B) 3600 s C) 600 s D) 1000 s
-
Uniform motion means:
A) Variable speed B) Constant speed C) Zero speed D) Negative speed
-
Non-uniform motion:
A) Constant speed B) Changing speed C) Zero motion D) None
-
Initial velocity is:
A) v B) u C) a D) t
-
Final velocity is:
A) u B) v C) s D) t
-
Acceleration due to gravity:
A) 8.9 B) 9.8 C) 10.8 D) 7.8
-
Object at rest has velocity:
A) 1 B) Zero C) Infinite D) Negative
-
Displacement can be:
A) Scalar B) Vector C) Zero only D) None
21–40: Laws, Work, Energy
-
Force =
A) m/a B) m×a C) a/m D) ma²
-
SI unit of force:
A) Newton B) Joule C) Watt D) Ohm
-
Momentum =
A) mv B) m/v C) v/m D) m+v
-
Unit of momentum:
A) kg·m/s B) N C) J D) W
-
First law is:
A) Inertia B) Force C) Energy D) Heat
-
Third law:
A) F=ma B) Action–reaction C) Energy law D) Motion law
-
Rocket principle:
A) Gravity B) Friction C) Action–reaction D) Energy
-
Work formula:
A) F/d B) F×d C) d/F D) None
-
Unit of work:
A) Joule B) Watt C) Newton D) Pascal
-
Energy unit:
A) Joule B) Volt C) Ampere D) Ohm
-
Kinetic energy:
A) mgh B) ½mv² C) mv D) v²
-
Potential energy:
A) ½mv² B) mgh C) mv D) v
-
Power =
A) Work/time B) Force/time C) Distance/time D) None
-
Unit of power:
A) Watt B) Joule C) Newton D) Pascal
-
1 kWh =
A) 3.6×10⁶ J B) 360 J C) 36 J D) 3600 J
-
Energy conservation means:
A) Created B) Destroyed C) Constant D) Lost
-
1 Joule =
A) 1 N·m B) 1 W C) 1 V D) 1 A
-
Inertia depends on:
A) Speed B) Mass C) Force D) Time
-
Work done when force = 0:
A) Max B) Zero C) Infinite D) Negative
-
Energy of position:
A) KE B) PE C) Heat D) Power
41–60: Heat, Light
-
SI unit of temperature:
A) °C B) K C) F D) J
-
Heat flows from:
A) Cold→Hot B) Hot→Cold C) Same D) None
-
Conduction occurs in:
A) Solids B) Liquids C) Gases D) Vacuum
-
Convection occurs in:
A) Solids B) Liquids C) Vacuum D) None
-
Radiation needs:
A) Medium B) No medium C) Solid D) Liquid
-
Normal body temperature:
A) 30°C B) 37°C C) 40°C D) 50°C
-
Mirror in vehicles:
A) Plane B) Convex C) Concave D) None
-
∠i = ∠r is:
A) Refraction B) Reflection C) Diffraction D) None
-
Convex lens:
A) Diverging B) Converging C) Flat D) None
-
Concave lens:
A) Converging B) Diverging C) Plane D) None
-
Speed of light:
A) 3×10⁸ B) 3×10⁶ C) 3×10⁴ D) 3×10²
-
Lens formula:
A) 1/f=1/v+1/u B) v=u+at C) F=ma D) None
-
Image in plane mirror:
A) Real B) Virtual C) Both D) None
-
Myopia corrected by:
A) Convex B) Concave C) Plane D) None
-
Hypermetropia corrected by:
A) Concave B) Convex C) Plane D) None
-
Focal length unit:
A) m B) kg C) s D) N
-
Laws of reflection are:
A) 1 B) 2 C) 3 D) 4
-
Refraction occurs due to:
A) Same medium B) Change in medium C) No change D) None
-
Convex mirror image:
A) Real B) Virtual C) Both D) None
-
Concave mirror can form:
A) Real only B) Virtual only C) Both D) None
61–80: Electricity, Magnetism
-
Unit of current:
A) Volt B) Ampere C) Ohm D) Watt
-
Ohm’s law:
A) V=IR B) P=VI C) F=ma D) None
-
Resistance unit:
A) Volt B) Ohm C) Ampere D) Joule
-
Power formula:
A) VI B) IR C) V/R D) None
-
Charge unit:
A) Coulomb B) Ampere C) Volt D) Watt
-
1A =
A) 1 C/s B) 1 V C) 1 W D) 1 J
-
Ammeter measures:
A) Voltage B) Current C) Power D) Resistance
-
Voltmeter measures:
A) Current B) Voltage C) Power D) Charge
-
Series circuit current:
A) Same B) Different C) Zero D) Infinite
-
Parallel circuit voltage:
A) Same B) Different C) Zero D) None
-
Fuse works on:
A) Heating effect B) Light C) Sound D) Motion
-
Good conductor:
A) Rubber B) Copper C) Wood D) Plastic
-
Like poles:
A) Attract B) Repel C) Neutral D) None
-
Unlike poles:
A) Repel B) Attract C) Same D) None
-
Magnetic field unit:
A) Tesla B) Watt C) Volt D) Joule
-
Compass works on:
A) Gravity B) Magnetic field C) Heat D) Light
-
Earth behaves as:
A) Conductor B) Magnet C) Insulator D) None
-
Magnetic lines are:
A) Straight B) Curved C) Closed loops D) None
-
Electromagnet uses:
A) Current B) Heat C) Light D) Sound
-
Right-hand rule gives:
A) Force B) Direction C) Energy D) Speed
81–100: Sound + Mixed
-
Sound needs:
A) Vacuum B) Medium C) Light D) Heat
-
Frequency unit:
A) Hertz B) Watt C) Volt D) Joule
-
Human hearing range:
A) 20–20k Hz B) 10–10k C) 100–100k D) None
-
Loudness depends on:
A) Frequency B) Amplitude C) Speed D) Time
-
Pitch depends on:
A) Amplitude B) Frequency C) Speed D) Distance
-
Echo due to:
A) Refraction B) Reflection C) Diffusion D) None
-
Speed of sound fastest in:
A) Gas B) Liquid C) Solid D) Vacuum
-
Time period =
A) 1/f B) f C) v D) λ
-
Ultrasound:
A) <20Hz B) >20kHz C) 100Hz D) None
-
Wave formula:
A) v=fλ B) F=ma C) V=IR D) None
-
g value on Earth:
A) 9.8 B) 8.9 C) 10.8 D) 7.8
-
Weight =
A) mg B) mv C) ma D) None
-
SI unit of pressure:
A) Pascal B) Watt C) Joule D) Ohm
-
Pressure =
A) F/A B) A/F C) F×A D) None
-
Work done depends on:
A) Force B) Distance C) Both D) None
-
Energy stored:
A) KE B) PE C) Heat D) Power
-
Power depends on:
A) Work & time B) Force C) Distance D) None
-
Reflection obeys:
A) Laws B) No laws C) Random D) None
-
Electric energy unit:
A) kWh B) Volt C) Ampere D) Ohm
-
Sound cannot travel in:
A) Solid B) Liquid C) Vacuum D) Gas
📊 Answer Key (Quick Check)
1-B, 2-B, 3-B, 4-A, 5-B, 6-B, 7-B, 8-B, 9-B, 10-B
11-B, 12-C, 13-B, 14-B, 15-B, 16-B, 17-B, 18-B, 19-B, 20-B
21-B, 22-A, 23-A, 24-A, 25-A, 26-B, 27-C, 28-B, 29-A, 30-A
31-B, 32-B, 33-A, 34-A, 35-A, 36-C, 37-A, 38-B, 39-B, 40-B
41-B, 42-B, 43-A, 44-B, 45-B, 46-B, 47-B, 48-B, 49-B, 50-B
51-A, 52-A, 53-B, 54-B, 55-B, 56-A, 57-B, 58-B, 59-B, 60-C
61-B, 62-A, 63-B, 64-A, 65-A, 66-A, 67-B, 68-B, 69-A, 70-A
71-A, 72-B, 73-B, 74-B, 75-A, 76-B, 77-B, 78-C, 79-A, 80-B
81-B, 82-A, 83-A, 84-B, 85-B, 86-B, 87-C, 88-A, 89-B, 90-A
91-A, 92-A, 93-A, 94-A, 95-C, 96-B, 97-A, 98-A, 99-A, 100-C
No comments:
Post a Comment