Chapter 5 lesson 1 Flashcards
Chapter 5 Lesson 1 Outline Forms of Energy What is Energy? _____Energy_____ is the ability to cause change. Energy can cause an object to _____________change___ its position or its motion. B. Kinetic energy- Energy of Motion Energy due to motion is __________kinetic energy____. The faster an object moves, the _____________more_______ kinetic energy it has. The kinetic energy of an object depends on its __________mass____as well as its speed. If two objects move at the same speed, the
What is Energy?
Energy is the ability to cause change.
What is kinetic energy?
The energy possessed by an object due to its motion.
What happens to kinetic energy as the speed of an object increases?
The faster an object moves, the more kinetic energy it has.
What factors determine the kinetic energy of an object?
Mass and speed.
If two objects move at the same speed, which will have more kinetic energy?
The object with greater mass.
What is potential energy?
Stored energy of an object due to its position or configuration.
What type of potential energy is stored between an object and Earth?
Gravitational potential energy.
What factors affect gravitational potential energy?
Height and mass of the object.
What is elastic potential energy?
Energy stored in objects that are stretched or compressed.
What happens to elastic potential energy when a rubber band is released?
It is transformed into kinetic energy.
What type of potential energy is stored in food?
Chemical potential energy.
What occurs when chemical reactions happen regarding potential energy?
Chemical potential energy is released.
What is work in terms of energy?
The transfer of energy to an object by a force that makes the object move in the direction of the force.
How is energy sometimes described in relation to work?
As the ability to do work.
In what units can energy be measured?
Joules.
What is mechanical energy?
The total kinetic energy and potential energy in an object or group of objects.
What is sound energy?
The energy carried by sound waves produced by vibrating objects.
What is thermal energy?
The sum of kinetic energy and potential energy of the particles in matter due to their random motion.
What is electrical energy?
The energy carried by an electric current.
What are electromagnetic waves?
Waves, such as microwaves, that can travel through a vacuum.
What is radiant energy?
The energy of electromagnetic waves.
What is nuclear energy?
Energy stored in the nucleus of an atom.
What happens in the Sun that releases nuclear energy?
Nuclei of atoms join together.
How do nuclear power plants release energy?
By splitting nuclei.
