ICS Part 1 Physics English Medium Chapter 7 Online Short Questions Test with Answers

Question # 1

Define driven harmonic oscillator and damped oscillations.

Ans 1: Damped Oscillations: TheOscillations in which the amplitude decreases steadily with time are called damped oscillations.

Driven harmonic oscillator: The physical system undergoing forced vibrations is known as driven harmonic oscillator.

Question # 2

What do you understand by forced vibration? Explain with examples.

Ans 1: If an oscillation system is subjected to an external periodic force, then force vibrations will take place.
1. The vibrations of a factory floor caused by the running of heavy machinery is a example of forced vibrations.
2. The mass of a vibrating pendulum is struck repeatedly, the forced vibrations are produced .

Question # 3

What is sharpness of resonance?

Ans 1: The amplitude s well as its sharpness< both depend upon the damping. Smaller the damping, greater will be the amplitude and more sharp will be the resonance.

Question # 4

How cooking of food is possible in micro-wave oven?

Ans 1: Food can be easily cooked in a microwave oven. The waves produced in this type of oven have a frequency of 2450 MHz. At this frequency the waves are absorbed due to resonance by water and fat molecules in the food.

Question # 5

What is driven harmonic oscillator? Give example.

Ans 1: A Physical system under going forced vibrations is called driven harmonic oscillator.
An example of forced vibration is loud music produced by sounding wooden boards of strings instruments.

Question # 6

Define Simple Harmonic Oscillator and driven harmonic oscillator.

Ans 1: The oscillator motion taking place under the action of restoring force is known as simple harmonic motion.A body such as simple pendulum , executing SHM is called simple harmonic oscillator
A physical system undergoing forced vibrations is know as driven harmonic oscillator.

Question # 7

Why the enthalpy of neutralization has the same value for any strong acid with any strong base?

Ans 1:

Question # 8

What is slinky spring ?

Ans 1: A large and loose spring coil is called slinky-spring. It can be used to demonstrate the effect of the motion of the source in generating waves in a medium.

Question # 9

Described some common phenomena in which resonance plays an important role.

Ans 1: Tuning of a radio: It is a good example of electrical resonance. For tuning we turn the knob of a radio which changes the natural frequency of electrical circuit of receiver until it becomes equal to the frequency of the transmitter. So resonance is produced and energy absorption is maximum. Hence a station is tuned and we can hear the transmission of desired station .
Microwave oven: The waves produced in this type of oven have a wavelength of 12cm at a frequency of 2450 Mhz at this frequency the waves are absorbed due to resonance by water and fat molecules in the food resulting in efficient and evenly heating and cooking of food.

Question # 10

If a heavy and light masses of same size are set into vibration, which of them will stop first?

Ans 1: Light mass will stop first.
The damping effect for the light mass due to air resistance is much greater than the heavy mass. Therefore, it will stop first.

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ICS Part 1 Physics English Medium Chapter 7 Online Short Questions Test with Answers

Online Short Questions For Chapter 7 "ICS Part 1 Physics Chapter 7 Short Questions Test "

Physics - ICS Part 1 Physics Chapter 7 Short Questions Test

Define driven harmonic oscillator and damped oscillations.

What do you understand by forced vibration? Explain with examples.

What is sharpness of resonance?

How cooking of food is possible in micro-wave oven?

What is driven harmonic oscillator? Give example.

Define Simple Harmonic Oscillator and driven harmonic oscillator.

Why the enthalpy of neutralization has the same value for any strong acid with any strong base?

What is slinky spring ?

Described some common phenomena in which resonance plays an important role.

If a heavy and light masses of same size are set into vibration, which of them will stop first?

Prepare Complete Set Wise Questions For Chapter 7 "ICS Part 1 Physics Chapter 7 Short Questions Test "

Set 1

Set 2

Set 3

ICS Part 1 Physics Chapter 7 Short Questions Test - Set 1

Define driven harmonic oscillator and damped oscillations.

What do you understand by forced vibration? Explain with examples.

What is sharpness of resonance?

How cooking of food is possible in micro-wave oven?

What is driven harmonic oscillator? Give example.

Define Simple Harmonic Oscillator and driven harmonic oscillator.

Why the enthalpy of neutralization has the same value for any strong acid with any strong base?

What is slinky spring ?

Described some common phenomena in which resonance plays an important role.

If a heavy and light masses of same size are set into vibration, which of them will stop first?

ICS Part 1 Physics Chapter 7 Short Questions Test - Set 2

Explain free and forced oscillations.

Described some common phenomena in which resonance plays an important role.

Differentiate between damped oscillation and undamped oscillations.

What are damped oscillations?Give some of its applications.

Briefly give two phenomena in which resonance plays an important role.

Why the enthalpy of neutralization has the same value for any strong acid with any strong base?

Describe some common phenomena in which resonance plays an important role.

How the phenomenon of resonance is produced?

How cooking of food is possible in micro-wave oven?

Describe free vibrations.

ICS Part 1 Physics Chapter 7 Short Questions Test - Set 3

What is driven harmonic oscillator? Give example.

How cooking of food is possible in micro-wave oven?

What is the total distance travelled by an object moving with SHM in a time equal to its period, if its amplitude is A?

Explain free and forced oscillations.

Briefly give two phenomena in which resonance plays an important role.

Define resonance.Write its one example.

Write one advantage and one disadvantage of resonance.

Why the amplitude of lead bob is greater than pith ball as the bobs having equal size and length set into vibration?

The amplitude of simple pendulum should be small, Why?

What are damped oscillations?Give some of its applications.

ICS Part 1 Physics Short Questions Test

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