Physical Science Chapter 4: Energy

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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 ______


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