Physics
Grade-9
Easy
Question
________ can’t occupy the same space at the same instant of time.
- Two objects
- Two waves
- Two pulses
- Two vibrations
Hint:
The laws of physics say that two objects cannot occupy the same space at the same time.
The correct answer is: Two objects
The laws of physics say that two objects cannot occupy the same space at the same time. Waves are not objects. Waves can and do occupy the same space at the same time
Two objects cannot occupy the same space at the same instant of time.
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In a longitudinal wave _______ and _______ are generated.
In a longitudinal wave _______ and _______ are generated.
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In a transverse wave ______ and _______ are generated.
In a transverse wave ______ and _______ are generated.
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Select the incorrect statement(s) from the following.
I. A simple harmonic motion is necessarily periodic.
II. A simple harmonic motion may be oscillatory
III. An oscillatory motion is necessarily periodic
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I. A simple harmonic motion is necessarily periodic.
II. A simple harmonic motion may be oscillatory
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The phase (at a time t) of a particle in simple harmonic motion tells:
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The period of vibration for a spring block system of spring constant k is:
The period of vibration for a spring block system of spring constant k is:
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Match the following with the correct response.
| 1. A moving disturbance | A. Mechanical waves |
| 2. Propagation require material medium | B. Oscillatory motion |
| 3. Particles vibrate perpendicular to the | C. Transverse waves direction of wave propagation |
| 4. Back and forth motion | D. Wave |
Match the following with the correct response.
| 1. A moving disturbance | A. Mechanical waves |
| 2. Propagation require material medium | B. Oscillatory motion |
| 3. Particles vibrate perpendicular to the | C. Transverse waves direction of wave propagation |
| 4. Back and forth motion | D. Wave |
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Light waves are _____ but not _____ in nature.
Light waves are _____ but not _____ in nature.
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In vacuum but not in a medium
In vacuum but not in a medium
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In which of the following media can non-mechanical waves travel?
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Mechanical transverse waves cannot travel through:
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While we throw a ball in the direction of waves, the waves transfer _____ to the ball:
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Why are sound waves considered mechanical waves?
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