Physical Science Quiz | Physical Science Multiple Choice Questions and Answers

Questions
1 Mirage is due to
A unequal heating of different parts of the atmosphere
B magnetic disturbances in the atmosphere
C depletion of ozone layer in the atmosphere
D equal heating of different parts of the atmosphere

Answer: unequal heating of different parts of the atmosphere
2 Natural radioactivity was discovered by
A Marie Curie
B Ernest Rutherfor
C Henri Becquerel
D Enrico Fermi

Answer: Henri Becquerel
3 It is more difficult to walk on a sandy road than on a concrete road because
A sand is soft and concreter is hard
B the friction between sand and feet is less than that between concrete and feet
C the friction between sand and feet is more than that between concrete and feet
D the sand is grainy but concrete is smooth

Answer: the friction between sand and feet is less than that between concrete and feet
4 One should not connect a number of electrical appliances to the same power socket because
A this can damage the appliances due to overloading
B this can damage the domestic wiring due to overloading
C this can damage the electrical meter
D the appliance will not get full voltage

Answer: this can damage the domestic wiring due to overloading
5 Light travels at the fastest speed in
A glass
B water
C hydrogen
D vacuum

Answer: vacuum
6 Of the following properties of a wave, the one that is independent of the other is its
A amplitude
B velocity
C wavelength
D frequency

Answer: amplitude
7 Who discovered Atom ?
A Madam Curie
B James Chadwick
C Rutherford
D John Dalton

Answer: John Dalton
8 Device used to measure potential difference between two points in a circuit is ?
A Ammeter
B Galvanometer
C Voltmeter
D None of above

Answer: Voltmeter
9 Who discovered Diode Bulb ?
A Henry Becquerel
B Sir J.S. Fleming
C Lee De Forest
D Archemedes

Answer: Sir J.S. Fleming
10 Which unit we use to express Nuclear sizes ?
A Tesla
B Newton
C Fermi
D None of the above

Answer: Fermi
11 The absorption of ink by blotting paper involves
A capillary action phenomenon
B viscosity of ink
C siphon action
D diffusion of ink through the blotting

Answer: capillary action phenomenon
12 Which instrument is used to measure altitudes in aircraft’s ?
A Audiometer
B Ammeter
C Altimeter
D Anemometer

Answer: Altimeter
13 Which one of the following has the highest value of specific heat ?
A Alcohol
B Methane
C Kerosene
D Water

Answer: Water
14 Which law is also called the law of inertia ?
A Newton’s first law
B Newton’s Second Law
C Newton’s Third Law
D All of these

Answer: Newton’s first law
15 If electrical conductivity increases with the increase of temperature of a substance, then it is a:
A Conductor
B Semiconductor
C Insulator
D Carborator

Answer: Semiconductor
16 Magnetism at the centre of a bar magnet is
A minimum
B maximum
C zero
D minimum or maximum

Answer: zero
17 Light from the Sun reaches us in nearly
A 2 minutes
B 4 minutes
C 8 minutes
D 16 minutes

Answer: 8 minutes
18 Planets are
A luminous heavenly bodies revolving around a star
B non-luminous heavenly bodies
C luminous heavenly bodies that twinkle
D luminous heavenly bodies that do not twinkle

Answer: non-luminous heavenly bodies
19 Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
A 1.8 km, 0.15 km
B 2.2 km, 0.20 km
C 2.8 km, 0.25 km
D 3.3 km, 0.30 km

Answer: 3.3 km, 0.30 km
20 Sound waves in air are
A transverse
B longitudinal
C electromagnetic
D polarized

Answer: longitudinal
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