Chapter 1- Conservation And Dissipation Of Energy Flashcards
1
Q
How can energy be stored?
A
There are many ways that energy can be stored.
2
Q
How is energy transferred?
A
Energy is transferred by heating, or by waves, by an electric current, or by a force when it moves an object.
3
Q
What happens when an object falls?
A
When an object falls and gains speed, its store of gravitational potential energy decreases and the kinetic energy store increases.
4
Q
What happens when a falling object hits the ground?
A
When a falling object hits the ground without bouncing back it’s kinetic energy store decreases. Some of its energy is transferred to the surroundings - the thermal energy store of the surroundings increases. Energy is also transferred by sound waves.
