Phy101 Grand Quiz 2021

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Phy101 Grand Quiz 2021

Phy101 Grand Quiz 2021





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Phy101 Grand Quiz 2021 With Answers




 

When a wave travels through a medium


Energy is transferred at a constant speed

 

Possible units of angular momentum are:


Kgm2/s


A transverse wave is transporting energy from east to west. The particles of the medium will be more


North to south only

 

Stress is proportional to a strain called:


Young’s Law

 

The ultimate strength of a sample is the stress at which the sample.


Breaks

 

A glass of water is placed on a sheet of paper. Quickly drag the sheet of paper from under the glass of water without spilling the water is due to:


Inertia

 

If the mass of moving abject is doubled then its K.S becomes.


2 times

 

A transverse wave is transporting energy from east to west. The particles of the medium will be more


North to south only

 

Distance covered during one vibration of an accelerating body in terms of amplitude A


A/2

 

Example of a physical quantity

 

Length

 

The slop of velocity-time graph shows the:


The average acceleration of body

 

0.0003711 is scientific notation is


3.7* 10^-4

 

For a body to be in equilibrium under the combined action of several forces:

 

The sum of the components of all the forces in any direction must equal zero

 

 

Suitable units for gravitational Constant G are:


 

M3/(kg-s2)

 

 

The angular momentum vector of Earth about its rotation axis, Due to its daily rotation, is directed:


South


Change the momentum in one second is called:


Force

 

If the force is applied at the center of mass then torque is:


Zero

 

A bullet shoot straight up returns to its starting point in 10 sec. the initial speed was


49 m/s

 

The ability of a capacitor to store charge depends upon:


All of these

 

A man with his arms at his sides. Is spinning on light friction fundable. When he extends his arms:


His angular velocity remains to reverse the same

 


The velocity-time graph is parallel to the time axis the acceleration of moving body is:


Zero

 

Units of distance are:

 

Light year

 

The center of mass of the system consisting of Earth, the Sun and the planet Mars is:


Closer to the Sun than to either of the other bodies


 

If the total momentum of a system is changing:


 

A net external force must be acting on the system

 


One revolution is the same as:


2n rad

 

Because a buoyant force acts in the opposite direction of gravity.


Objects summered in water have a net force smaller than their weight

 

The goal of all specific inquiry (or scientific method) is:


Predicting natural events based on known patterns








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