An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of conservation of energy. Which statement describes why the student is incorrect?
ANSWER:Speed is not related to energy in any way.
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the lowest?
ANSWER:when the ball is at its highest point
A book is at rest on a flat table. The book is pushed across the table, causing it to move and eventually come to rest again. How does the potential and kinetic energy change during this process?
Responses
ANSWER:The potential and kinetic energy will stay the same unless the book speeds up or slows down.
Which is a good description of potential energy?
ANSWER:stored energy
your welcome [:
5 answers
Answers 1. and 3. are wrong.
1 and 3 are wrong
what are the correct 1's
1.An object falls through the air, gaining speed as it falls. A student claims that this creates new energy, and so it breaks the law of conservation of energy. Which statement describes why the student is incorrect?
Answer for 1.Energy is converted from other forms, not created.
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the lowest?
Answer for 2.When the ball is at its highest point.
3.A book is at rest on a flat table. A person gives the book a shove and it slides across the table. The book eventually comes to rest again near the edge of the table. How does the potential and kinetic energy change during this process?
Answer for 3.The potential energy will stay the same as long as the book stays on the table. The kinetic energy increases when the book is shoved and then gradually decreases as it slides across the table and then comes to rest on the edge.
3.Which is a good description of potential energy?
Answer for 4.Stored energy
Hope this helps:)
Answer for 1.Energy is converted from other forms, not created.
A person throws a ball up into the air, and the ball falls back toward Earth. At which point would the kinetic energy be the lowest?
Answer for 2.When the ball is at its highest point.
3.A book is at rest on a flat table. A person gives the book a shove and it slides across the table. The book eventually comes to rest again near the edge of the table. How does the potential and kinetic energy change during this process?
Answer for 3.The potential energy will stay the same as long as the book stays on the table. The kinetic energy increases when the book is shoved and then gradually decreases as it slides across the table and then comes to rest on the edge.
3.Which is a good description of potential energy?
Answer for 4.Stored energy
Hope this helps:)
TYSM :)