Question

An object thrown vertically upward will ________ kinetic energy and ________ gravitational potential energy. Group of...

An object thrown vertically upward will ________ kinetic energy and ________ gravitational potential energy.

Group of answer choices

lose ... gain

gain ... gain

lose ... lose

gain ... lose

Homework Answers

Answer #1
  • lose ... gain is the correct option .

Explanation : The acceleration due to gravity acts downward , so a ball thrown vertically upward will decelerate and hence it’s velocity will decrease. Due to decrease in it’s velocity , it’s kinetic energy will also decrease. Now , by the application of law of conservation of total energy ( kinetic energy + potential energy ) , since kinetic energy is decreasing so potential energy should increase in order to satisfy the law. Also it can be seen that since object gain height moving upward , so it’s potential energy increase by formula :
U = m*g*h ; where h is the gained height .

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