Forms of Energy Conversions Conservation of Energy Units

Forms of Energy Conversions Conservation of Energy Units & Formulas Do the Math 100 100 100 200 200 200 300 300 300 400 400 400 500 500 500

What is nuclear energy? This form of energy comes from the nucleus of atoms. Row 1, Col 1

What is an energy conversion? The change from one form of energy to another. 1, 2

What is the law of conservation of energy? Energy can not be created or destroyed, but it can be transformed into other types. 1, 3

What is the unit for work and energy? Joules. 1, 4

What is 98 J The gravitational potential energy of a 5 kg object that is 2 m above the ground. 1, 5

What is kinetic energy? Energy of motion 2, 1

What is elastic potential energy? Energy stored in rubber band or a drawn bow string. 2, 2

What is kinetic and potential energy? On a rollercoaster as you go down a hill this energy increases as this energy decreases. 2, 3

What is work? Energy is needed for this and it requires movement. 2, 4

What is 140 J The GPE of a 20 N object that Is 7 m above the ground. 1, 5

What is gravitational potential energy? Energy stored in an object’s ability to fall. 3, 1

What is chemical to electrical to light energy? These energy conversions take place in a battery powered flashlight. 3, 2

What is thermal energy? Due to friction all energy conversion will also create this type of energy. 3, 3

What is ½mv 2 ? The formula for kinetic energy. 3, 4

What is 40 J? The mechanical energy of an object with 10 J of kinetic energy and 30 J of potential energy. 1, 5

What is mechanical energy? The sum of potential and kinetic energy of an object. 4, 1

What is kinetic to thermal energy? This energy transformation occurs, due to friction, when rubbing your hands together. 4, 2

What is perpetual motion? This type of motion is impossible, due to friction. 4, 3

What is weight x height (mgh)? The formula for gravitational potential energy. 4, 4

What is fusion? Nuclear energy from combining atoms like the sun does when it creates helium from hydrogen atoms. 1, 5

What is thermal energy? All of the kinetic energy due to the motion of the particles in an object. 5, 1

What are some ways to reduce friction/thermal energy? Waxing skis, sharpening ice skating blades, designing aerodynamic sleds. 5, 2

What is energy efficiency? The amount of useful energy compared to the amount of energy put in. 5, 3

Where is the potential energy the greatest? The top of the first hill of a roller coaster. 5, 4

What is 36 J? The kinetic energy of a 8 kg mass moving 3 m/s. 1, 5