Gravitation Concept Review

Select all of the choices below that have the same meaning as "G"

• g

• gravitational force

• gravitational constant

• gravitational field strength

Select all of the choices below that have the same meaning as "g"

• weight

• acceleration due to gravity

• gravitational force

• gravitational constant

• gravitational field strength

• weight

• gravitational acceleration

• gravitational force

• gravitational constant

• gravitational field strength

A gravitational field.... (choose one answer)

• requires 2 objects to be created

• becomes stronger if a second object with increased mass is placed in the field

• is created by any one object that has mass

• becomes stronger at larger distances from the object at the center

Gravitational force is always equal to...(you may choose more than one answer)

• An object's weight

• mg

Gravitational force...(choose one answer)

• increases with increasing distance

• can exist with a single object

• increases with decreasing mass

• requires two objects to exist

A gravitational field...(select more than one answer)

• only exists for objects of planetary size

• can be ignored if the object causing the field has a small mass

• can change strength based on the objects placed into the field

• can interact with more than one object at once

When an object is orbiting a planet in a circle and far from other objects...(select more than one answer)

• The planet exerts a lesser force on the object than the force the object exerts on the planet

• The gravitational field caused by the planet is interacting with the object

• The planet exerts a greater force on the object than the force the object exerts on the planet

• The net force on the object is provided by the planet's gravitational pull

Compare the size of the gravitational field strength experienced by the following objects due to the Earth's gravitational field...

A) a pen sitting on a desk in our classroom

B) A plane flying at 12,000 m above the surface

C) An asteroid flying between Earth and the Moon

• A > B > C

• C > B > A

• Cannot determine with info given (need to know exact object masses and distances from Earth center)

• All equal 9.8 because they are in Earth's gravitational field

• All 0 because their masses are too small.