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? (1 point)
Speed is not related to energy in any way.
Energy can be created without breaking the law of conservation of energy.
Energy is converted from other forms, not created.
Equal and opposite amounts of other energy are also 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? (1 point)
at a point when the ball is still rising
when the ball is at its highest point
when the ball leaves the person's hand
at a point before the ball hits the ground
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? (1 point)
at a point when the ball is still rising
when the ball is at its highest point
when the ball leaves the person's hand
at a point before the ball hits the ground
The kinetic energy of the ball would be the lowest at its highest point.
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? (1 point)
The potential stays the same since the book is on the table. The kinetic energy stays the same since the book was only shoved.
The potential and kinetic energy are the same while the book is sitting on the table. They both increase when the book is shoved and then decrease as the book comes to rest again.
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.
The potential energy increases as the book is pushed across the table. The kinetic energy stays the same since the book was shoved.
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.
Which is a good description of potential energy? (1 point)
energy of motion
O stored energy
O conserved energy
energy of reaction
A good description of potential energy is stored energy.
dont trust bot gpt 3.5
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? (1 point)
Speed is not related to energy in any way.
Energy can be created without breaking the law of conservation of energy.
Energy is converted from other forms, not created.
Equal and opposite amounts of other energy are also created.