Some Natural Phenomenon

An electroscope is a device which is used to find if an object is

• charged

• magnetised

• hot

• free of cracks

The outermost layer of earth is called

• mantle

• outer core

• inner core

• crust

Which of the following cannot be charged easily by friction?

• A plastic scale

• A copper rod

• An inflated balloon

• A woolen cloth

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

When two bodies are rubbed against each other, they acquire

• Equal and similar charges

• Equal and opposite charges

• Unequal and similar charges

• Unequal and opposite charges

Which of the following produces charge ?

• gum

• amber

• lac

• fructose

Like charges

• can repel or attract each other depending on the quantity of charge

• can repel or attract each other depending on conditions

• always repel each other

• always attract each other

When an uncharged body B is brought into contact with a positively charged body A:

• A loses its charge

• B acquires positive charge

• B acquire no charge

• B acquires negative charge

Tags

NGSS.MS-PS2-3

The place of origin of an earthquake is called

• Focus

• epicenter

• Disc

• None of these

Which of the following is negatively charged particle?

• proton

• electron

• neutron

• all of these

An earthquake of magnitude 8-9 is

• not felt

• mild

• strong

• very strong

Tags

NGSS.MS-ESS3-2