effects of mass on gravity
Which has a larger gravitational force- a tank truck or mini-cooper?
tank truck
What is the Universal Gravitional Constant?
6.67x10-11 Nm2/kg2
What theory came from Einstein?
General Theory of Relativity
An example of tangential velocity is a -------------- orbiting a star.
planet
What shape is an orbit for planets around the sun?
elliptical
What happens to the gravitational force when the mass of one body doubles?
doubles
What is r?
radial distance
Did Einstein expand on Newton's ideas?
yes
Tangential velocity is the speed of an object------?
moving along a curve.
Why do planets orbit faster when they are closer to the sun?
gravitation attraction
What happens to the gravitational force if the mass of both bodies doubles?
quadruples
What does inverse square law state?
Gravity decreases with the square of the distance.
What two phenomena came from Einstein?
gravitational lensing and black holes
It is crucial for satellites to avoid------?
falling into the planet they orbit.
The minimum velocity needed to break free from a planet's gravity.
What are you calculating if your mass is m1 and the Earth's mass is m2?
weight
What is gravity?
Fundamental force of nature.
Einstein described gravity as a ________ in spacetime
curvature
An example of tangential velocity is a spinning-
a merry go round or washing machine.
_____ is the curved path of an object under gravity's influence.
Projectile motion
If your mass decreases what happens to your weight?
It also decreases
What is the universal law of gravity formula?
F=Gm1m2/r2
What did Einstein say affected gravity?
mass and energy
If the moon did NOT have tangential velocity, what would happen?
It would crash into the Earth
What does perihelion mean?
Planets orbit faster near the sun