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

A book falling off a shelf 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

Stored mechanical - potential 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?

Electricity is kinetic or potential?

Chemicals are kinetic or potential?

Nuclear is kinetic or potential?

Stored mechanical is kinetic or potential?

Gravitational energy is kinetic or potential?

Describe the amount of potential and kinetic energy of a roller coaster at the top right before going down Potential – 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.

More electrical current. Apple battery lab: Pushing different kinds of metals deeper into the apple resulted in this? More electrical current.

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

I am the type of energy associated with moving electrons Electricity

What happened when two different metals touched in the apple battery Electrons 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 energy Sound

State the Law of Conservation of Energy Energy cannot be created or destroyed. It can only be converted from one form to another

Calcium chloride & water 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 energy Photosynthesis

I am a change from one form of energy to another Energy conversion or energy transformation

Motion (windmills) Radiant (solar panel) Chemical (battery) 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 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

1. stored energy 2. energy of position (gravitational) Which 2 factors are used to determine whether an object has potential energy 1. stored energy 2. energy of position (gravitational)