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Physics — Second Secondary 2026/2027

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Chapter 5: Properties of Hydrostatics — Picture questions (exam style)

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  • Questions count: 28
  • Passing grade: 60%
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1.
A U-tube holds two immiscible liquids of densities 13600 and 800 kg m−3; liquid 2 stands 17 cm above the interface (figure). Which option is correct?
A U-tube holds two immiscible liquids of densities 13600 and 800 kg m⁻³; liquid 2 stands 17 cm above the interface (figure). Which option is correct?
height of liquid 1 = 17 cm, level difference = 18 cm
height of liquid 1 = 17 cm, level difference = 32 cm
height of liquid 1 = 1 cm, level difference = 17 cm
height of liquid 1 = 1 cm, level difference = 16 cm
2.
Hydraulic press: small piston 5 cm2, large 1000 cm2; a force 20 N moves the small piston 20 cm. Which option is correct?
Hydraulic press: small piston 5 cm², large 1000 cm²; a force 20 N moves the small piston 20 cm. Which option is correct?
F₂ = 4000 N, large piston moves 0.1 cm, mechanical advantage = 100
F₂ = 4000 N, large piston moves 0.1 cm, mechanical advantage = 200
F₂ = 2000 N, large piston moves 1 cm, mechanical advantage = 400
F₂ = 282.843 N, large piston moves 0.1 cm, mechanical advantage = 100
3.
A body of density 500 kg m−3 and volume 500 cm3 floats in a liquid of density 800 kg m−3 (figure). Which option is correct? (g = 9.8)
A body of density 500 kg m⁻³ and volume 500 cm³ floats in a liquid of density 800 kg m⁻³ (figure). Which option is correct? (g = 9.8)
fraction submerged = 40%, upthrust = 2.45 N
fraction submerged = 62.5%, upthrust = 3.92 N
fraction submerged = 62.5%, upthrust = 2.45 N
fraction submerged = 40%, upthrust = 0.25 N
4.
A water manometer is connected to a gas tank; atmospheric pressure 74 cmHg; level difference 30 cm (open limb higher). Which option is correct? (ρHg = 13600, g = 9.8)
A water manometer is connected to a gas tank; atmospheric pressure 74 cmHg; level difference 30 cm (open limb higher). Which option is correct? (ρHg = 13600, g = 9.8)
gas pressure = 71.79 cmHg, gas pressure ≈ 9.863e+04 Pa
gas pressure = 76.21 cmHg, gas pressure ≈ 9.863e+04 Pa
gas pressure = 482 cmHg, gas pressure ≈ 3.998e+04 Pa
gas pressure = 76.21 cmHg, gas pressure ≈ 1.016e+05 Pa
5.
What is the total pressure on a diver 1 m deep in sea water (ρ = 1030 kg m−3, g = 9.8, atmospheric 101 000 Pa)?
What is the total pressure on a diver 1 m deep in sea water (ρ = 1030 kg m⁻³, g = 9.8, atmospheric 101 000 Pa)?
10100 Pa
11300 Pa
1030 Pa
1.11×105 Pa
6.
Hydraulic press: small piston 10 cm2, large 500 cm2; a force 10 N moves the small piston 20 cm. Which option is correct?
Hydraulic press: small piston 10 cm², large 500 cm²; a force 10 N moves the small piston 20 cm. Which option is correct?
F₂ = 250 N, large piston moves 0.4 cm, mechanical advantage = 0.02
F₂ = 500 N, large piston moves 0.4 cm, mechanical advantage = 50
F₂ = 70.7107 N, large piston moves 4 cm, mechanical advantage = 25
F₂ = 0.2 N, large piston moves 0.4 cm, mechanical advantage = 50
7.
A body of density 900 kg m−3 and volume 500 cm3 floats in a liquid of density 1000 kg m−3 (figure). Which option is correct? (g = 9.8)
A body of density 900 kg m⁻³ and volume 500 cm³ floats in a liquid of density 1000 kg m⁻³ (figure). Which option is correct? (g = 9.8)
fraction submerged = 90%, upthrust = 0.45 N
fraction submerged = 90%, upthrust = 4.41 N
fraction submerged = 10%, upthrust = 0.45 N
fraction submerged = 45%, upthrust = 4.41 N
8.
A water manometer is connected to a gas tank; atmospheric pressure 75 cmHg; level difference 10 cm (open limb lower). Which option is correct? (ρHg = 13600, g = 9.8)
A water manometer is connected to a gas tank; atmospheric pressure 75 cmHg; level difference 10 cm (open limb lower). Which option is correct? (ρHg = 13600, g = 9.8)
gas pressure = -61 cmHg, gas pressure ≈ 9.898e+04 Pa
gas pressure = -10 cmHg, gas pressure ≈ 9.996e+04 Pa
gas pressure = 74.26 cmHg, gas pressure ≈ 9.898e+04 Pa
gas pressure = 74.26 cmHg, gas pressure ≈ 9.996e+04 Pa
9.
A U-tube holds two immiscible liquids of densities 900 and 1000 kg m−3; liquid 2 stands 8 cm above the interface (figure). Which option is correct?
A U-tube holds two immiscible liquids of densities 900 and 1000 kg m⁻³; liquid 2 stands 8 cm above the interface (figure). Which option is correct?
height of liquid 1 = 8.89 cm, level difference = 0.889 cm
height of liquid 1 = 8.89 cm, level difference = 8 cm
height of liquid 1 = 17.8 cm, level difference = 1.78 cm
height of liquid 1 = 17.8 cm, level difference = 16.9 cm
10.
Hydraulic press: small piston 20 cm2, large 100 cm2; a force 50 N moves the small piston 10 cm. Which option is correct?
Hydraulic press: small piston 20 cm², large 100 cm²; a force 50 N moves the small piston 10 cm. Which option is correct?
F₂ = 250 N, large piston moves 2 cm, mechanical advantage = 5
F₂ = 125 N, large piston moves 10 cm, mechanical advantage = 5
F₂ = 10 N, large piston moves 20 cm, mechanical advantage = 10
F₂ = 250 N, large piston moves 20 cm, mechanical advantage = 5
11.
Hydraulic press: small piston 20 cm2, large 500 cm2; a force 10 N moves the small piston 20 cm. Which option is correct?
Hydraulic press: small piston 20 cm², large 500 cm²; a force 10 N moves the small piston 20 cm. Which option is correct?
F₂ = 125 N, large piston moves 0.8 cm, mechanical advantage = 25
F₂ = 250 N, large piston moves 8 cm, mechanical advantage = 12.5
F₂ = 250 N, large piston moves 0.8 cm, mechanical advantage = 50
F₂ = 250 N, large piston moves 0.8 cm, mechanical advantage = 25
12.
Hydraulic press: small piston 20 cm2, large 500 cm2; a force 20 N moves the small piston 10 cm. Which option is correct?
Hydraulic press: small piston 20 cm², large 500 cm²; a force 20 N moves the small piston 10 cm. Which option is correct?
F₂ = 100 N, large piston moves 250 cm, mechanical advantage = 0.04
F₂ = 250 N, large piston moves 0.4 cm, mechanical advantage = 25
F₂ = 500 N, large piston moves 0.4 cm, mechanical advantage = 25
F₂ = 100 N, large piston moves 0.4 cm, mechanical advantage = 50
13.
Hydraulic press: small piston 2 cm2, large 1000 cm2; a force 100 N moves the small piston 50 cm. Which option is correct?
Hydraulic press: small piston 2 cm², large 1000 cm²; a force 100 N moves the small piston 50 cm. Which option is correct?
F₂ = 25000 N, large piston moves 0.1 cm, mechanical advantage = 500
F₂ = 2236.07 N, large piston moves 50 cm, mechanical advantage = 1000
F₂ = 50000 N, large piston moves 2.5e+04 cm, mechanical advantage = 500
F₂ = 50000 N, large piston moves 0.1 cm, mechanical advantage = 500
14.
Hydraulic press: small piston 5 cm2, large 500 cm2; a force 50 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 5 cm², large 500 cm²; a force 50 N moves the small piston 40 cm. Which option is correct?
F₂ = 0.5 N, large piston moves 40 cm, mechanical advantage = 50
F₂ = 5000 N, large piston moves 0.4 cm, mechanical advantage = 100
F₂ = 2500 N, large piston moves 0.4 cm, mechanical advantage = 50
F₂ = 5000 N, large piston moves 0.4 cm, mechanical advantage = 200
15.
Hydraulic press: small piston 5 cm2, large 500 cm2; a force 10 N moves the small piston 10 cm. Which option is correct?
Hydraulic press: small piston 5 cm², large 500 cm²; a force 10 N moves the small piston 10 cm. Which option is correct?
F₂ = 0.1 N, large piston moves 1e+03 cm, mechanical advantage = 50
F₂ = 1000 N, large piston moves 1e+03 cm, mechanical advantage = 100
F₂ = 1000 N, large piston moves 1 cm, mechanical advantage = 100
F₂ = 1000 N, large piston moves 0.1 cm, mechanical advantage = 100
16.
Hydraulic press: small piston 2 cm2, large 100 cm2; a force 50 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 2 cm², large 100 cm²; a force 50 N moves the small piston 40 cm. Which option is correct?
F₂ = 2500 N, large piston moves 0.8 cm, mechanical advantage = 50
F₂ = 353.553 N, large piston moves 2e+03 cm, mechanical advantage = 50
F₂ = 2500 N, large piston moves 8 cm, mechanical advantage = 25
F₂ = 1250 N, large piston moves 8 cm, mechanical advantage = 25
17.
Hydraulic press: small piston 2 cm2, large 500 cm2; a force 100 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 2 cm², large 500 cm²; a force 100 N moves the small piston 40 cm. Which option is correct?
F₂ = 0.4 N, large piston moves 0.16 cm, mechanical advantage = 500
F₂ = 25000 N, large piston moves 1.6 cm, mechanical advantage = 250
F₂ = 1581.14 N, large piston moves 1e+04 cm, mechanical advantage = 0.004
F₂ = 25000 N, large piston moves 0.16 cm, mechanical advantage = 250
18.
Hydraulic press: small piston 10 cm2, large 200 cm2; a force 10 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 10 cm², large 200 cm²; a force 10 N moves the small piston 40 cm. Which option is correct?
F₂ = 200 N, large piston moves 2 cm, mechanical advantage = 0.05
F₂ = 100 N, large piston moves 2 cm, mechanical advantage = 10
F₂ = 200 N, large piston moves 2 cm, mechanical advantage = 10
F₂ = 200 N, large piston moves 2 cm, mechanical advantage = 20
19.
Hydraulic press: small piston 5 cm2, large 100 cm2; a force 100 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 5 cm², large 100 cm²; a force 100 N moves the small piston 40 cm. Which option is correct?
F₂ = 5 N, large piston moves 800 cm, mechanical advantage = 10
F₂ = 1000 N, large piston moves 2 cm, mechanical advantage = 0.05
F₂ = 2000 N, large piston moves 2 cm, mechanical advantage = 20
F₂ = 1000 N, large piston moves 2 cm, mechanical advantage = 20
20.
A body of density 900 kg m−3 and volume 1000 cm3 floats in a liquid of density 1260 kg m−3 (figure). Which option is correct? (g = 9.8)
A body of density 900 kg m⁻³ and volume 1000 cm³ floats in a liquid of density 1260 kg m⁻³ (figure). Which option is correct? (g = 9.8)
fraction submerged = 63%, upthrust = 8.82 N
fraction submerged = 35.7%, upthrust = 8.82 N
fraction submerged = 71.4%, upthrust = 8.82 N
fraction submerged = 28.6%, upthrust = 8.82 N
21.
Hydraulic press: small piston 5 cm2, large 1000 cm2; a force 100 N moves the small piston 20 cm. Which option is correct?
Hydraulic press: small piston 5 cm², large 1000 cm²; a force 100 N moves the small piston 20 cm. Which option is correct?
F₂ = 20000 N, large piston moves 0.1 cm, mechanical advantage = 400
F₂ = 1414.21 N, large piston moves 20 cm, mechanical advantage = 100
F₂ = 20000 N, large piston moves 4e+03 cm, mechanical advantage = 400
F₂ = 20000 N, large piston moves 0.1 cm, mechanical advantage = 200
22.
Hydraulic press: small piston 10 cm2, large 1000 cm2; a force 100 N moves the small piston 50 cm. Which option is correct?
Hydraulic press: small piston 10 cm², large 1000 cm²; a force 100 N moves the small piston 50 cm. Which option is correct?
F₂ = 10000 N, large piston moves 5e+03 cm, mechanical advantage = 100
F₂ = 1 N, large piston moves 0.5 cm, mechanical advantage = 100
F₂ = 10000 N, large piston moves 0.5 cm, mechanical advantage = 100
F₂ = 10000 N, large piston moves 50 cm, mechanical advantage = 0.01
23.
Hydraulic press: small piston 20 cm2, large 1000 cm2; a force 20 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 20 cm², large 1000 cm²; a force 20 N moves the small piston 40 cm. Which option is correct?
F₂ = 1000 N, large piston moves 0.8 cm, mechanical advantage = 25
F₂ = 1000 N, large piston moves 0.8 cm, mechanical advantage = 50
F₂ = 500 N, large piston moves 8 cm, mechanical advantage = 50
F₂ = 141.421 N, large piston moves 0.8 cm, mechanical advantage = 50
24.
Hydraulic press: small piston 20 cm2, large 200 cm2; a force 10 N moves the small piston 20 cm. Which option is correct?
Hydraulic press: small piston 20 cm², large 200 cm²; a force 10 N moves the small piston 20 cm. Which option is correct?
F₂ = 1 N, large piston moves 20 cm, mechanical advantage = 20
F₂ = 100 N, large piston moves 2 cm, mechanical advantage = 10
F₂ = 50 N, large piston moves 20 cm, mechanical advantage = 10
F₂ = 1 N, large piston moves 2 cm, mechanical advantage = 0.1
25.
A body of density 800 kg m−3 and volume 1000 cm3 floats in a liquid of density 1000 kg m−3 (figure). Which option is correct? (g = 9.8)
A body of density 800 kg m⁻³ and volume 1000 cm³ floats in a liquid of density 1000 kg m⁻³ (figure). Which option is correct? (g = 9.8)
fraction submerged = 40%, upthrust = 15.7 N
fraction submerged = 50%, upthrust = 15.7 N
fraction submerged = 80%, upthrust = 7.84 N
fraction submerged = 50%, upthrust = 0.8 N
26.
A body of density 500 kg m−3 and volume 200 cm3 floats in a liquid of density 1260 kg m−3 (figure). Which option is correct? (g = 9.8)
A body of density 500 kg m⁻³ and volume 200 cm³ floats in a liquid of density 1260 kg m⁻³ (figure). Which option is correct? (g = 9.8)
fraction submerged = 63%, upthrust = 0.98 N
fraction submerged = 60.3%, upthrust = 0.98 N
fraction submerged = 19.8%, upthrust = 0.1 N
fraction submerged = 39.7%, upthrust = 0.98 N
27.
Hydraulic press: small piston 2 cm2, large 200 cm2; a force 100 N moves the small piston 50 cm. Which option is correct?
Hydraulic press: small piston 2 cm², large 200 cm²; a force 100 N moves the small piston 50 cm. Which option is correct?
F₂ = 10000 N, large piston moves 50 cm, mechanical advantage = 0.01
F₂ = 10000 N, large piston moves 0.5 cm, mechanical advantage = 100
F₂ = 1 N, large piston moves 50 cm, mechanical advantage = 50
F₂ = 10000 N, large piston moves 5e+03 cm, mechanical advantage = 50
28.
Hydraulic press: small piston 10 cm2, large 100 cm2; a force 100 N moves the small piston 40 cm. Which option is correct?
Hydraulic press: small piston 10 cm², large 100 cm²; a force 100 N moves the small piston 40 cm. Which option is correct?
F₂ = 316.228 N, large piston moves 400 cm, mechanical advantage = 5
F₂ = 500 N, large piston moves 40 cm, mechanical advantage = 5
F₂ = 316.228 N, large piston moves 40 cm, mechanical advantage = 20
F₂ = 1000 N, large piston moves 4 cm, mechanical advantage = 10
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