Mastering Gravitation: Your Ultimate Class 9 Physics Quiz

The force between two objects is directly proportional to the product of their masses and inversely proportional to the distance between them.

The force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

The force between two objects is directly proportional to the sum of their masses and inversely proportional to the square of the distance between them.

The force between two objects is inversely proportional to the product of their masses and directly proportional to the square of the distance between them.

$\text{N kg}^2 \text{m}^{-2}$

$\text{N m}^2 \text{kg}^{-2}$

$\text{N m}^{-2} \text{kg}^2$

$\text{N kg}^{-2} \text{m}^2$

$6.67 \times 10^{-11} \text{N m}^2 \text{kg}^{-2}$

$9.8 \text{m/s}^2$

$6.022 \times 10^{23} \text{mol}^{-1}$

$3 \times 10^8 \text{m/s}$

It becomes half.

It becomes double.

It becomes one-fourth.

It becomes four times.

It is a universal constant.

Its value is the same everywhere on Earth.

Its value varies with altitude and depth.

It depends on the mass of the falling object.

$9.8 \text{m/s}$

$0 \text{m/s}$

Depends on its mass

Depends on the height

Kilogram (kg)

Newton (N)

Gram (g)

Kilogram-force (kgf)

Altitude of the object

Depth inside the Earth

Latitude on Earth

Mass of the object

$W = m/g$

$W = mg$

$m = Wg$

$W = m + g$

10 kg

$10/6 \text{ kg}$

$10 \times 6 \text{ kg}$

$1.67 \text{ kg}$

$2.0 \times 10^{20} \text{ N}$

$7.6 \times 10^{28} \text{ N}$

$3.4 \times 10^{18} \text{ N}$

$1.2 \times 10^{20} \text{ N}$

$10 \text{ m/s}$

$20 \text{ m/s}$

$30 \text{ m/s}$

$40 \text{ m/s}$

60 N

10 N

360 N

1 N

The force acting per unit area.

The force acting perpendicularly on a surface.

The force acting parallel to a surface.

The pressure exerted by a fluid.

Newton (N)

Pascal (Pa)

Joule (J)

Watt (W)