1.
Which state of matter has a fixed shape?
A
Liquid
B
Gas
C
Solid
D
Plasma
2.
Calibration of thermometer means:
A
Cleaning the thermometer
B
Marking temperature scale
C
Filling liquid
D
Measuring pressure
3.
Which apparatus is used to measure volume of liquids?
A
Balance
B
Thermometer
C
Measuring cylinder
D
Spring balance
4.
Which state of matter has no fixed volume?
A
Solid
B
Liquid
C
Gas
D
Ice
5.
Density of a substance depends on:
A
Its shape
B
Its size
C
Its mass and volume
D
Its color
6.
Linearity of thermometer means:
A
Equal divisions represent equal temperature change
B
Fast response
C
Wide range
D
High sensitivity
7.
What is the SI unit of density?
A
kg
B
m³
C
kg/m³
D
g/cm³
8.
Which state of matter has the weakest intermolecular forces?
A
Solid
B
Liquid
C
Gas
D
Plasma
9.
Which liquid is commonly used in a liquid-in-glass thermometer?
A
Water
B
Alcohol
C
Mercury
D
Oil
10.
Range of thermometer means:
A
Accuracy
B
Maximum and minimum measurable temperature
C
Speed of response
D
Sensitivity
11.
According to particle model, particles of matter are:
A
Stationary
B
Continuously moving
C
Invisible
D
Fixed in place
12.
Which scale is commonly used in laboratories?
A
Kelvin
B
Celsius
C
Fahrenheit
D
Rankine
13.
Which instrument is commonly used to measure mass?
A
Thermometer
B
Measuring cylinder
C
Balance
D
Stopwatch
14.
Which quantity is needed to calculate density?
A
Force
B
Pressure
C
Mass and volume
D
Temperature and mass
15.
Which instrument is used to measure temperature?
A
Barometer
B
Thermometer
C
Hygrometer
D
Manometer
16.
Sensitivity of thermometer depends on:
A
Length of stem
B
Thickness of bulb
C
Volume of bulb and capillary
D
Color of liquid
17.
Upper fixed point of a Celsius thermometer is:
A
0°C
B
50°C
C
100°C
D
212°C
18.
Particle model of matter explains:
A
Only solids
B
Only liquids
C
Structure and behavior of matter
D
Only gases
19.
Lower fixed point of a Celsius thermometer is:
A
0°C
B
100°C
C
32°C
D
273°C
20.
How is the volume of an irregular solid measured?
A
Using ruler
B
Using measuring tape
C
By water displacement method
D
By thermometer
21.
Why is mercury suitable for thermometers?
A
It is colorful
B
It sticks to glass
C
It expands uniformly
D
It freezes easily
22.
Which is an example of plasma?
A
Ice
B
Steam
C
Sun
D
Water
23.
Which state of matter has particles very close together?
A
Gas
B
Liquid
C
Solid
D
Plasma
24.
What is density?
A
Mass multiplied by volume
B
Volume divided by mass
C
Mass per unit volume
D
Weight per unit volume
25.
Temperature is a measure of:
A
Mass
B
Density
C
Average kinetic energy of particles
D
Volume
26.
What is plasma?
A
Cold gas
B
Liquid with ions
C
Ionized gas
D
Heated solid
27.
What happens to particle motion when temperature increases?
A
It stops
B
It decreases
C
It increases
D
It remains same
28.
Which formula represents density?
A
Density = Volume / Mass
B
Density = Mass × Volume
C
Density = Mass / Volume
D
Density = Weight / Volume