OxfordAQA A2 Gravitational Fields

 $\frac{r^3}{T^2}\ =\$ constant, is known as which law?

• Newton's law of gravitation

• Kepler's first law

• Kepler's second law

• Kepler's third law

In Fields, The constant of proportionality, G, is called the

• gravitational field strength

• universal constant of gravitation

• Gibb's free energy

• acceleration due to gravity

Tags

NGSS.HS-PS2-4

The gravitational force between two objects is (a)   proportional to the distance between them

The units of G are

• $N\ m^{2\ }kg^2$

• $N\ m^{-2\ }kg^{-2}$
  

• $N\ m^{2\ }kg^{-2}$

• $N\ m^{-2\ }kg^2$

Tags

NGSS.HS-PS2-4

Newton's Law of Gravitation assumes the masses are point masses. This means that the masses have zero (a)  

The value of G is

• $6.67x10^{-11}$

• $6.67x10^{11}$

• $6.67x10^{-1}$

• $6.67x10^1$

Tags

NGSS.HS-PS2-4

True or false:

 $m\ s^{-2}\ =\ N\ kg^{-1}$  

• True

• False

True or false:

You and the Earth exert an equal magnitude gravitational force on each other.

• True

• False

The path which a small mass would follow towards a large mass is called the line of force or (a)  

The symbol for gravitational field strength is

• GF

• gfs

• g

• G

Tags

NGSS.HS-PS2-4