Gravitational Concept Review

Henry Cavendish

In 1798, ______ devised an apparatus to measure the gravitational force

distance

In Newtons equation for the law of Universal Gravitation r is _____

4x - 200N

Suppose the gravitational fore between two spheres is 50 if the magnitude of each mass doubles the force between them will

increases gets stronger

two objects move toward each other because of gravitational attraction As the objects get closer the force _______

equal

A very massive object A and less massive B move toward each other the influence of mutual graduation Compare the amount of force exerted on A and on B

area time

According to Kepler's law an imaginary line from the sun to a planet sweeps out equal ___ in equal amounts of ____

planets move faster when they are closer to the sun and slower when they are farther away

According to Kepler's law which of the following statements is true

halve the distance from the sun

According to Newton's Law of universal gravitation in the case of a planet near the Sun which of the following would necessarily cause the attractive force to be quadrupled

Reducing the distance between the masses by half

What event will produce the greatest increase in the gravitational force between two masses

attractive product of masses distance between masses

gravitational force between two masses spheres is always ____ and depends on ___ and ____

increase

if earth began to shrink but its mass remained the same the value of g on earth would _______

increase

if the mass of earth increased with no change in the radius your weight would

decrease moving faster

if the mass of the sun were doubled the period of the planets orbits would

increase

if the radius of earth decreases but mass stays the same your weight would

increase

if the radius of the planets orbits were doubled its period would

1/4 of the what it is on earth

if you stood atop a ladder on earth that was as tall as Earths radius your weight atop the ladder would be

inverse squared relationship

newton reasoned that the gravitational attraction between earth and the moon and the distance between them must has a

divide by 4 - 18.75N

suppose the gravitational force between two massive spheres is 75 if distance is doubled the masses is now

closer

the force of gravity on you id greater when you are standing ____ to the earth center

ellipse

the paths of the planets are