What is stored energy and the energy of position called?

Potential energy

Why does the bi-metal bar curve when heat is

applied to it?

Different metals expand at different rates

What is the energy of motion called?

Kinetic energy

Give an example of an object going from

potential energy to kinetic energy

A book falling off a shelf

Energy efficiency refers to ….

The amount of useful energy you receive

Someone turns on a switch to turn on a fan =

100 joules of electrical energy in 70 joules of motion energy out

20 joules of heat energy out 10 joules of sound energy out

How much of the energy is wasted?(not used for its intended purpose)

30 joules = heat + sound

Elastic forces in which a force is applied can be described as what type of energy – be specific

Stored mechanical - potential

Light is kinetic or potential?

kinetic

Electricity is kinetic or potential?

kinetic

Chemicals are kinetic or potential?

potential

Nuclear is kinetic or potential?

potential

Stored mechanical is kinetic or potential?

potential

Gravitational energy is kinetic or potential?

potential

Describe the amount of potential and kinetic

energy of a roller coaster at the top right before

going downPotential – mucho Kinetic - little

One egg is dropped from a 3 story building and another

egg is dropped from a 1 story building, which has the most gravitational potential

energy?

3rd story building

Plants have which type of energy?

Chemical / potential

Apple battery lab: Pushing the same kind of

metal deeper into the apple resulted in this?

No electrical current.

Apple battery lab: Pushing different kinds of

metals deeper into the apple resulted in this?

More electrical current.

Apple battery lab: Pushing different kinds of

metals deeper into the apple resulted in this?

More electrical current.

A reaction in which things feels warm to

touch?

Exothermic

A reaction in which things feel cool to touch?

Endothermic

These two ingredients produce an endothermic

reaction

Baking soda and vinegar

These two ingredients produce an exothermic

reaction

Calcium chloride and water

Which is not one of the main forms of energy:

light, thermal, petroleum, nuclear

petroleum

I am the type of energy associated with moving

electrons

Electricity

What happened when two different metals touched in the apple

batteryElectrons jump from metal to metal

taking the path of least resistance

Why is there an energy benefit to some dark

colored animals?Dark colors absorb thermal energy and can keep them

warm in cold weather

Vibrations in the air are considered

this type of energySound

State the Law of Conservation of EnergyEnergy cannot be created or

destroyed. It can only be converted from one form to another

Give an example of an energy conversion from our labs that goes from

chemical energy to thermal energy

Calcium chloride & water

I am the name given to the process in which light energy is used to make a

new substance with chemical energyPhotosynthesis

I am a change from one form of energy to

another

Energy conversion or energy transformation

Give three different energy examples in which electrical

energy can be produced.

Motion (windmills)Radiant (solar panel)

Chemical (battery)

Name 3 different types of energy produced during

collisions

Thermal, sound and motion

What were the energy conversions in the

light stick lab?

Chemical radiant

What were the energy conversions in the

radiometer lab?

Radiant thermal motion

What were the energy conversions in the

sad ball lab?

Motion sound thermal

What were the energy conversions in the

solar panel lab?

Radiant electrical thermal

Paul Konerko hits one out of the park. Describe the energy

conversions that take place starting from the sun/nuclear

Sun / nuclear Chemical (him / from plants) motion (swinging bat) thermal & sound (collision – hitting the ball) motion (ball going out of park) thermal (friction in the air)

Energy is the ability to

do work

Which 2 factors are used to determine whether an object

has potential energy

1. stored energy 2. energy of position (gravitational)