Physical Science Chapter 4: Energy
Kinetic
A car engine changes chemical potential energy into the _____ energy of a moving car
Energy
Ability to cause change
Mechanical Energy
An object's _______ is its total amount of potential and kinetic energy
Law of Conservation of Energy
Energy can not be created or destroyed
Kinetic Energy
Energy in the form of motion is _______, depends on its mass and its velocity
Joules
Energy is measured in SI units called____
Gravitational Potential Energy
Energy stored by things that are above earth and depends on its mass, the acceleration due to gravity, and its height (HEIGHT IN METERS)
Friction
Force that acts between two sticks when they are rubbed together
mass
Kinetic = 1/2(_____)(speed)^2
Speed
The amount of kinetic energy a moving object has depends on its mass and its _____
Law of Conservation of Energy
The conversion of potential energy to kinetic energy follows the
Chemical potential energy
The energy stored in foods and fuels is ______
Elastic potential energy
The energy stored in stretched or compressed objects is ______
Chemical Potential Energy
The energy stored in the bonds between atoms (chemical bonds) is _ _____
Gravitational Potential Energy
The stored energy an object has as a result of its height above the ground is ____.
Potential energy
The stored energy in a motionless object has as a result of it position is ____
Nuclear fission
Two nuclei are broken apart
Nuclear Fusion
Two nuclei are fused together. Takes place in the sun
Mechanical
Type of energy due to both the position and motion of an object
Potential
Type of energy that is gratest at the top of a swing's path
Kinetic
Type of energy that is greatest at the bottom of a swing's path
Light
Type of energy transformed into chemial energy by plants
Electrical
Type of energy transformed into thermal energy in a toaster
Nuclear
Type of reaction in which mass is transformed into energy
Calorie
Unit used to measure the amount of energy that people get from food
Conservation
What law of energy has never been broken
The law of conservation of energy
______ states that the total amount of energy in the universe remains the same.
friction
causes some mechanical energy to change to thermal energy
Energy conversion
energy changing from on form to another
the same
the total energy of a system remains ______