Which of the following is why ancient observers thought that the Earth was in the center of the universe? A: the earth seemed to move on its axis
B: Earths motion are only recently known because of the high powered telescope
C: Objects in the sky appear to circle around the earth
D: Ancient Observers believed the earth was statinary

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

the maxium height is 34m/s

the right answer is 0.3 meters per second