Chapter 4: Forces and Energy

environmental damage

Flooding land and building a dam causes ________.

Define Work.

Work is done whenever a force makes something move.

Define kinetic energy.

This is energy due to motion. All moving objects have kinetic energy.

Define Potential Energy.

This is energy which an object has because of its changed position, shape, or state. There are several different types of potential energy.

How to calculate potential energy.

Equation

How to calculate kinetic energy.

Equation

Define efficiency.

In simple words efficiency means how good a something (a device) is at transferring energy input to useful energy output.

How to calculate efficiency?

Equation

Define power.

Power is the rate at which work is done.

How to calculate power?

Equation

What is geothermal?

In this heat is harnessed from deep beneath Earth's surface and converted to useable energy; a renewable resource.

What is hydropower?

It is the electricity generation using the power of falling water DAM POWER.

Define nonrenewable resource.

It is an energy resource that takes millions of years to form from the remains of plants and animals such as coal, oil, and natural gas.

What is nuclear energy?

It is the splitting of uranium atoms to release energy; a nonrenewable resource.

Define renewable resource.

It is an energy resource that is replaceable by natural means such as trees or wind.

What is solar power.

It is the sun's energy is collected and converted to useable energy; a renewable resource.

What is wind power?

Turbines harness the movement of air and convert it to useable energy; a renewable resource.