Free Printable Gravitaton

1.

What is gravitational force?

a)

Gravitational force is a force that attracts any two objects with mass.

b)

Gravitational force is a force that attracts any two objects with velocity.

c)

Gravitational force is a force that attracts any two objects with acceleration.

d)

Gravitational force is a force that attracts any two objects with weight.

2.

which are the following is Newton’s Law of gravitation ?

a)

$W=\frac{GMm}{r}$

b)

$F\ =\frac{GMm}{r^2}$

c)

$V\ =\sqrt{\frac{GM}{r}}$

d)

$g=-\ \frac{GM}{r}$

3.

What are the units for Gravitional Field strength, $a_g\ =\frac{GM}{r^2}$ .Give two of them...

a)

$N\ kg\ ^{-1}$

b)

$J\ kg\ ^{-1}$

c)

$m\ s\ ^{-2}$

d)

$m\ s\ ^{-1}$

4.

State Newton’s law of gravitation

a)

every object in the universe attracts another object with a weight that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the speed between them.

b)

every object in the universe attracts another object with a force that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the distance between them.

c)

every object in the universe attracts another object with a force that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the acceleration between them.

d)

every object in the universe attracts another object with a speed that is directly proportional to the product of masses of both the objects and it is inversely proportional to the square of the distance between them.

5.

What is h?

a)

is the altitude or height of the satellite from the surface of the planet

b)

radius of the planet

c)

radius of the satellite

d)

distance of the two objects from their center

6.

What is the force applied to all objects on Earth?

a)

Earthquakes

b)

Gravity

7.

What happens to the force of gravity if the mass of one of the objects is doubled?

a)

The force of gravity doubles

b)

The force of gravity is tripled

c)

The force of gravity is halved

d)

The force of gravity increases 4 times

8.

Which of the following is true?

a)

M is inversely proportional to the F_g

b)

F_g is directly proportional to the separation distance

c)

F_gis inversely proportional to the separation distance

d)

F_g is inversely proportional to the square of the separation distance

9.

Gravitational Field Strength, ag is the gravitational force exerted per unit (a) placed at that point.

10.

(a) is the work done by the gravitational pull

to bring the mass from infinity (¥) to that point.

Gravitaton

Total questions: 10

Worksheet time: 11mins

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