a ball start at rest and rolls down a hill. which of the following is a true statement?
f the ball gains kinectic energy
g the ball gains potential energy
h the ball gains potential energy and kinetic energy
j the ball gains potential energy and loses kinetic energy
2006-10-21 07:39:13 · 7 answers · asked by ♫ 2 in Education & Reference ➔ Homework Help
The right answer is the ball gains Kinetic energy and loses potential energy.
When the ball is at rest the Potential energy is at highest and Kinetic is zero.As it rolls down the Potential energy is converted inti Kinetic so the right statement should be ball gains Kinetic energy and loses potential energy.
But it is not one of your options so the true statement is:
THE BALL GAINS KINETIC ENERGY
2006-10-21 07:50:50 · answer #1 · answered by Ättitude is Ëverything 3 · 0⤊ 0⤋
f: the ball gains kinectic energy
anything with "potential energy" means that the ball is at rest and it has the "potential" to have energy. You can't necessarily gain potential energy. You can lose kinectic energy when the ball starts slowing down.
2006-10-21 08:01:58 · answer #2 · answered by Melissa F 5 · 0⤊ 0⤋
Kinetic energy - energy of motion
Potential energy - stored energy available for use
The ball has potential energy at the top of the hill because it has the *potential* to roll down. When the ball starts rolling, the potential energy is then converted to kinetic energy because the ball is now moving.
2006-10-21 07:48:25 · answer #3 · answered by sarah h 2 · 0⤊ 0⤋
F - The ball gains kinectic energy
that is the true statement the other answers have to many variables and make them true or false...
2006-10-21 07:49:04 · answer #4 · answered by lastepmom 2 · 0⤊ 0⤋
f ball gains kinectic
kinectic is moving
potential is position
2006-10-21 07:54:16 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The answer is f.I learned all about that stuff in ideas (the class for smart kids).Potential energy is when it is stoped.Kinectic energy is when it is moving.
2006-10-21 07:47:51 · answer #6 · answered by Bobbie Sue 1 · 0⤊ 1⤋
f i think...cuz kenetic energy is the motion
2006-10-21 07:41:16 · answer #7 · answered by blitzyflitzy294 3 · 0⤊ 0⤋