Properties of Matter Practice Questions
HSC/SSC (Bangladesh) · HSC Physics · 146 free MCQs with instant results and detailed explanations.
146
Total
48
Easy
79
Medium
19
Hard
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Sample Questions from Properties of Matter
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
Which of the following statements is true regarding the density of an object?
A.
Density is mass per unit volume.
B.
Density is the weight of an object.
C.
Density increases with temperature.
D.
Density has no relation to volume.
Show Answer & Explanation
Correct Answer: A
Density is defined as the mass of an object divided by its volume, which is why option A is correct.
Q2
Easy
If a cube of wood with a volume of 2 mยณ has a mass of 1,200 kg, what is its density?
A.
600 kg/mยณ
B.
300 kg/mยณ
C.
2,400 kg/mยณ
D.
1,200 kg/mยณ
Show Answer & Explanation
Correct Answer: A
Density is calculated as mass divided by volume. Here, density = 1200 kg / 2 mยณ = 600 kg/mยณ, which makes option A correct.
Q3
Easy
Which factor does NOT significantly affect the viscosity of a fluid?
A.
Temperature of the fluid
B.
Nature of the fluid
C.
Speed of the fluid flow
D.
Pressure of the fluid
Show Answer & Explanation
Correct Answer: C
The viscosity of a fluid is primarily affected by temperature, nature, and pressure; however, while speed can influence flow characteristics, it does not significantly alter viscosity itself, making option C correct.
Q4
Medium
What does Young's modulus measure in materials?
A.
Elasticity
B.
Density
C.
Thermal conductivity
D.
Viscosity
Show Answer & Explanation
Correct Answer: A
Young's modulus is a measure of the stiffness of a material, quantifying its ability to deform elastically under stress. It specifically relates stress to strain in the linear elastic region of the material.
Q5
Medium
If the density of a substance is 800 kg/mยณ and its volume is 2 mยณ, what is its mass?
A.
1600 kg
B.
200 kg
C.
2400 kg
D.
3200 kg
Show Answer & Explanation
Correct Answer: A
Mass can be calculated using the formula: mass = density ร volume. Here, mass = 800 kg/mยณ ร 2 mยณ = 1600 kg.
Q6
Medium
Which of the following best describes the concept of viscosity?
A.
The measure of a fluid's resistance to flow
B.
The amount of heat energy a substance can absorb
C.
The tendency of a solid to return to its original shape
D.
The ratio of mass to volume of a substance
Show Answer & Explanation
Correct Answer: A
Viscosity is defined as the measure of a fluid's resistance to flow and deformation. It quantifies how thick or sticky a fluid is.
Q7
Medium
A material stretches 1.5 mm under a tensile force of 300 N. If its original length was 1 m, what is its tensile strain?
A.
0.0015
B.
0.015
C.
0.03
D.
0.005
Show Answer & Explanation
Correct Answer: A
Tensile strain is calculated by dividing the extension by the original length. Here, strain = 1.5 mm / 1000 mm = 0.0015.
Q8
Hard
A metal rod expands by 0.5% in length when heated from 20ยฐC to 100ยฐC. What is the coefficient of linear expansion (ฮฑ) for the metal?
A.
1.25 ร 10โปโต /ยฐC
B.
1.25 ร 10โปโด /ยฐC
C.
2.50 ร 10โปโต /ยฐC
D.
2.50 ร 10โปโด /ยฐC
Show Answer & Explanation
Correct Answer: B
The coefficient of linear expansion is given by ฮฑ = ฮL / (Lโ ร ฮT). The change in length (ฮL) is 0.5% of the original length (Lโ), and ฮT is the change in temperature (100ยฐC - 20ยฐC = 80ยฐC). Thus, ฮฑ = (0.005 ร Lโ) / (Lโ ร 80) = 0.005 / 80 = 1.25 ร 10โปโด /ยฐC.
Q9
Hard
A liquid has a coefficient of viscosity of 0.8 Paยทs and flows through a pipe of radius 0.05 m and length 10 m. If the pressure difference between the ends of the pipe is 2000 Pa, what is the flow rate of the liquid through the pipe?
A.
0.002 mยณ/s
B.
0.01 mยณ/s
C.
0.005 mยณ/s
D.
0.003 mยณ/s
Show Answer & Explanation
Correct Answer: C
Using Poiseuille's law, Q = (ฯrโดฮP)/(8ฮทL). Plugging the values, Q = (ฯ(0.05 m)โด(2000 Pa))/(8(0.8 Paยทs)(10 m)) = 0.005 mยณ/s, which matches option C.
Q10
Hard
A cylindrical rod made of brass (density = 8500 kg/mยณ) has a length of 1 m and a diameter of 0.01 m. Calculate the mass of the rod.
A.
0.424 kg
B.
0.849 kg
C.
1.699 kg
D.
2.098 kg
Show Answer & Explanation
Correct Answer: B
The volume of the cylinder is given by V = ฯrยฒh. The radius r is 0.005 m (half of the diameter), and the height h is 1 m. Thus, the volume V = ฯ(0.005)ยฒ(1) = 7.85 x 10^-5 mยณ. The mass is then calculated using the formula mass = density ร volume = 8500 kg/mยณ ร 7.85 x 10^-5 mยณ = 0.849 kg.
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Properties of Matter โ HSC/SSC (Bangladesh) HSC Physics Practice Questions Online
This page contains 146 practice MCQs for the chapter Properties of Matter in HSC/SSC (Bangladesh) HSC Physics. The questions are organized by difficulty โ 48 easy, 79 medium, 19 hard โ so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.