Live Education Quiz

1

What is density?

A Mass multiplied by volume B Volume divided by mass C Mass per unit volume D Weight per unit volume

2

Which formula represents density?

A Density = Volume / Mass B Density = Mass × Volume C Density = Mass / Volume D Density = Weight / Volume

3

What is the SI unit of density?

A kg B m³ C kg/m³ D g/cm³

4

Which quantity is needed to calculate density?

A Force B Pressure C Mass and volume D Temperature and mass

5

Which instrument is commonly used to measure mass?

A Thermometer B Measuring cylinder C Balance D Stopwatch

6

How is the volume of an irregular solid measured?

A Using ruler B Using measuring tape C By water displacement method D By thermometer

7

Which apparatus is used to measure volume of liquids?

A Balance B Thermometer C Measuring cylinder D Spring balance

8

Density of a substance depends on:

A Its shape B Its size C Its mass and volume D Its color

9

Which state of matter has a fixed shape?

A Liquid B Gas C Solid D Plasma

10

Which state of matter has no fixed volume?

A Solid B Liquid C Gas D Ice

11

Which state of matter has particles very close together?

A Gas B Liquid C Solid D Plasma

12

Which state of matter has the weakest intermolecular forces?

A Solid B Liquid C Gas D Plasma

13

What is plasma?

A Cold gas B Liquid with ions C Ionized gas D Heated solid

14

Which is an example of plasma?

A Ice B Steam C Sun D Water

15

Particle model of matter explains:

A Only solids B Only liquids C Structure and behavior of matter D Only gases

16

According to particle model, particles of matter are:

A Stationary B Continuously moving C Invisible D Fixed in place

17

What happens to particle motion when temperature increases?

A It stops B It decreases C It increases D It remains same

18

Temperature is a measure of:

A Mass B Density C Average kinetic energy of particles D Volume

19

Which instrument is used to measure temperature?

A Barometer B Thermometer C Hygrometer D Manometer

20

Which scale is commonly used in laboratories?

A Kelvin B Celsius C Fahrenheit D Rankine

21

Lower fixed point of a Celsius thermometer is:

A 0°C B 100°C C 32°C D 273°C

22

Upper fixed point of a Celsius thermometer is:

A 0°C B 50°C C 100°C D 212°C

23

Calibration of thermometer means:

A Cleaning the thermometer B Marking temperature scale C Filling liquid D Measuring pressure

24

Which liquid is commonly used in a liquid-in-glass thermometer?

A Water B Alcohol C Mercury D Oil

25

Why is mercury suitable for thermometers?

A It is colorful B It sticks to glass C It expands uniformly D It freezes easily

26

Sensitivity of thermometer depends on:

A Length of stem B Thickness of bulb C Volume of bulb and capillary D Color of liquid

27

Range of thermometer means:

A Accuracy B Maximum and minimum measurable temperature C Speed of response D Sensitivity

28

Linearity of thermometer means:

A Equal divisions represent equal temperature change B Fast response C Wide range D High sensitivity

Chapter 7: Density and Temperature