force of attraction between things that have mass
gravity
The force of gravity depends on the weight of an object.
False
Objects with greater mass have a ___________ force of gravity between them.
stronger
If the force of gravity between the two objects is 40 units and the mass of object X is 5 units, what is the mass of object Y?
hint: assuming object X is m1
40 units
Why are all objects pulled to the center of the Earth?
gravity
amount of matter in a particle or object
mass
The bigger the object, the weaker the force of gravity.
False
If one of two objects decreases its mass, it _________ the gravitational pull between the two objects.
decreases
If the mass of object X is 5 units and the mass of object Y is 6 units, what is the force of gravity between the two objects?
30 units
sun
A measurement that is taken using a scale and is determined by the pull of gravity.
weight
The force of gravity will also depend on how close or far apart one object is from another.
True
If one of two objects increases its mass, it ___________ the gravitational pull between the two objects.
increases
Using the equation below, assume that the force of gravitational attraction between two objects is 6 units.
What will the force of gravitational attraction between the objects be if the mass of both objects doubles?
24 units
What would happen if there was no gravitational attraction between Earth and the sun?
Earth will continue going in a straight line and will not revolve around the sun. It will become dark and very cold.
An English mathematician and physicist who is known for formulating the theory of universal gravity. Newton’s three laws are commonly studied in middle and high school.
Isaac Newton
Isaac Newton discovered gravity.
False
If two objects decreases their distance, it _________ the gravitational pull between the two objects.
increases
Assume that the force of gravitational attraction between two objects is 20 units.
What will the force of gravitational attraction between the objects be if the distance between the objects doubles?
5 units
Why are we not pulled towards other objects here on Earth that have a much larger mass?
Because the masses of other objects or particles are much smaller compared to that of Earth.
Every particle attracts every other particle with a force that is proportional to their masses and inversely proportional to the square of distance between them.
Universal Law of Gravitation
Mass and weight are different but can both be measured by standard units.
True
If two objects increase their distance, it _________ the gravitational pull between the two objects.
decreases
Using the equation below, assume that the force of gravitational attraction between two objects is 9 units.
What will the force of gravitational attraction between the objects be if the mass of both objects triples and the distance between the objects triples?
9 units
Name one thing that would happen if we did not have a moon?
tides would fall, nights would be darker, seasons would change, and the length of our days would alter.