gravitation

what is inverse square law ?

• r square

• 1/r square

• 4/r square

• d square

Tags

NGSS.HS-PS2-4

where is ULG (universal law of gravitation) not used

• Tides

• trajectory

• satellites

• charges

Tags

NGSS.HS-PS2-4

how does force of gravitation act when masses of two objects are doubled

• 4x force

• 1/4x force

• 2x force

• 1/9x force

Tags

NGSS.HS-PS2-4

what is 'g' of earth

• 9.8

• 10

• 6.67*10-11(that is power -11)

• 6.67

Tags

NGSS.HS-PS2-4

properties of weight are given below which is not correct

• force exerted by body on earth

• never zero or negative

• variable from place to place

• si unit is N

Tags

NGSS.HS-PS2-4

Kepler stole who's observation ?

Formula for weight is

• W=ma

• W=mG

• W=mg

• W=m

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

an object has a mass 36 kg on earth find its weight on the moon (approximated values)

• 360 N

• 300 N

• 60 N

• 10 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is 0 in upward free fall

• u

• v

• a

• s

which is the strongest force in nature

• Electrostatic force

• Strong Nuclear force

• weak nuclear force

• gravitational force