Question 1

If the density of a substance is 8 g/cm³, what is its value in SI units?

Accepted Answer

8×10³ kg/m³

Question 2

What is the formula for linear expansion coefficient (α)?

Accepted Answer

α = (increase in length) / (original length × temperature rise)

Question 3

Which instrument is used to observe tiny objects?

Accepted Answer

Microscope

Question 4

What is the SI unit of surface tension?

Accepted Answer

N m⁻¹

Question 5

What is the relationship between linear (α), area (β), and volume (γ) coefficients of thermal expansion?

Accepted Answer

α : β : γ = 1 : 2 : 3

Question 6

Which physical quantity depends on direction?

Accepted Answer

Velocity

Question 7

Joule is the SI unit of which quantity?

Accepted Answer

Energy

Question 8

Gases have two types of specific heats. What are they?

Accepted Answer

Cv and Cp

Question 9

Which instrument measures the distance traveled by a vehicle?

Accepted Answer

Odometer

Question 10

For complete description of a physical quantity, what is necessary?

Accepted Answer

Both numerical value and unit

Science One Liner Questions with Answers

Which instrument measures the distance traveled by a vehicle?