(a) Hot weather
(b) Calm weather
(d) Dry weather
Q2. Good conductor of electricity is
(a) dry air
Q3. Which of the following is a non-renewable source of energy?
Q4. Solar energy is converted into chemical energy during
Q5. The term ‘equinox’ means
(a) The path which the Earth takes around the Sun
(b) The axis of the Earth around which it rotates
(c) When the day and night are of equal duration
(d) The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon
Q6. Heat from the Sun reaches the Earth by
Q7. In which of the following cases, kinetic energy is being used in performing work?
(a) Paddling the bicycle to cover a distance
(b) Driving a car to cover a distance
(c) Wind mill grinding wheat grain
(d) Rowing a boat in the lake
Q8. Which of the following parts of the sunlight makes the solar cooker hot?
(a) Ultra violet
(b) Red light
(c) Infra red
(d) Cosmic rays
Q9. If the velocity-time graph of a particle is represented by y = mt + c, then the particle is moving with
(a) constant speed
(b) constant velocity
(c) constant acceleration
(d) varying acceleration
Q10. Which of the following occurred first?
(a) Albert Einstein propound the General Theory of Relativity
(b) Max Planck unveiled the Quantum Theory
(c) Guglielmo Marconi sent out the first wireless signals
(d) Wright Brothers successfully flew an aircraft