Physics Quiz

Everyday Physics
(3 votes)10
4 months ago

#1  Buttons  20 seconds

What phenomenon is explained in the Video?




Critical angle

The return of light or sound waves from a surface is called reflection

#2  Buttons  20 seconds

Why did the coin not come along the paper?

Due to Inertia

Coin is too heavy

There is magnet beneath table

Coin is not linked with Paper

Objects at rest, tends to remain at rest is called inertia

#3  Buttons  20 seconds

Under what phenomenon does the door open?



circular motion


Torque is a measure of the force that can cause an object to rotate about an axis

#4  Buttons  20 seconds

Which of the following is neither a scalar nor a vector?

Dielectric constant


Angular Momentum


These quantizes don't follow law of vector addition. Dielectric is a tensor quantity

#5  Buttons  20 seconds

What does Newton's first law tell us?

The definition of force

The measure of force

The forces always exist in pairs

The total quantity of motion

First law of motion gives the definition of force.

#6  Buttons  20 seconds

What type of force is non-conservative?

Frictional Force

Gravitational Force

Strong Force

Electromagnetic Forces

Friction is non-conservative because the amount of work done by friction depends on the path

#7  Buttons  20 seconds

How much energy is in a thunderbolt of lightning?

one billion joules

250000 joules

500 Joules

3000 Joules

An average bolt of lightning, striking from cloud to ground, contains roughly one billion joules of eneregy

#8  Buttons  20 seconds

Why does the sea level rise at night?

Moon's gravity

Sun's gravity

Sea breezes

Global Warming

The sea level rises at night because of the influence of the moon's gravity

#9  Buttons  20 seconds

Why are there winds?

Temperature differences

Air flows from high density to low density.

air flows along isobars

air flows down-hill

The temperature difference at different areas of land cause change in atmospheric pressure. Hence Winds flow

#10  Buttons  20 seconds

What is the speed of gravity?

gravity travels at the speed of light

gravity travels at 9.8 meters per second per second

(32 feet) per second per second

gravity travels at twice of speed of light

According to Einstein's General Relativity, gravity travels at the speed of light.