Energy Jeopardy Hosted By Mrs. Hynes

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

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

The change from one form of energy to another. 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

Energy stored in rubber band or a drawn bow string. 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

This equals force x distance What is work? This equals force x distance 2,4

The work done lifting a 20 N object 7 m above the ground. What is 140 J The work done lifting a 20 N object 7 m above the ground. 1,5

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

These energy conversions take place in a battery powered flashlight. 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

The formula for kinetic energy. What is ½mv2 ? 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

The sum of potential and kinetic energy of an object. 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

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

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

The power used doing 20 J of work in 40 sec. What is 0.5 Watts? The power used doing 20 J of work in 40 sec. 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 exothermic reactions? This type of chemical reaction converts chemical energy into thermal energy. 5,2

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

This formula is the rate of change of work. What is Power = work/time? This formula is the rate of change of work. 5,4

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