Energy: Energy Transfer & Science Notes

In physics energy is defined as the ability to to do ____

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Use your notes to help you: Energy has many forms. For example, you use mechanical energy to toss a ball, heat energy warms a room, electric energy makes a light bulb glow, and ________ energy provides the driving force for a gas-powered automobile.

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The law of ​ (a)   of energy states that energy is neither ​ (b)   nor destroyed. When people use energy, it doesn't disappear. Energy ​ (c)   from one form of energy into another form of energy.

• conservation
• created
• changes
• environmental
• thermal
• electrons
• protons

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Potential Energy - in physics potential energy is ______ energy; examples include a hammer when raised, a bow and arrow when pulled back, a battery before being used, food is also potential energy because when we eat food it becomes chemical energy in our bodies

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Match the following

• Roller coaster car speeding down a hill

• Law of Conservation of Energy

• A roller coaster car at the top of a hil

• The ability to do work

• Hammer strikes nail and driven into wood

• Mechanical Energy

• Energy cannot be created nor destroyed

• Potential Energy

• Physics defines energy

• Kinetic Energy

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_______ Energy - moving energy; examples include a hammer when striking a nail, a bow and arrow when released causing the arrow to fly, or a bowling when released and rolled down the lane

• Kinetic

• Potential

• Mechanical

• Conservation

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Mechanical Energy - in physics mechanical energy is ​ (a)   energy plus kinetic energy (potential + kinetic). When a given amount of mechanical energy is ​ (b)   (such as when hitting a nail, lifting a box, crushing a soda can, or stirring a beverage) it is said that this amount of mechanical ​ (c)   has been done.

• potential
• transferred
• work
• kinetic
• physics
• circulatory
• impossible

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Energy ​ (a)   - The conversion (​ (b)   ) of one form of energy into another or the ​ (c)   of energy from one place to another.

• Transfer
• movement
• changing
• kinetic
• potential
• mechanical
• Work

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Our bodies convert ​ (a)   energy in our food into mechanical energy for us to move around and exercise.

• chemical
• electrical
• work
• physics
• blood
• kinetic

Energy in a battery is used to power an electronic device, chemical energy is transformed into __________ energy, which moves along wires.