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Energy II
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The member of BTS that says they have the least amount of energy
Suga
What type of energy has J-Hope got
Gravitational potential energy
Where is Katnes getting the energy to pull the bow
Light energy from the sun was turned into chemical energy in plants by photosynthesis, which was eaten and transfer into chemical energy in her body
What type of energy does the object have
Elastic potential energy
Calculate the amount of useful energy if the input energy is 10J
6J
The type of energy at the bottom of the roller coaster
Kinetic energy
A ball with 50J of potential energy is dropped on two different surfaces, will the amount of energy the ball has change
No, the total energy will be the same as the ball is dropped from the same height
Describe the energy transformation
Gravitational potential energy to kinetic energy with the waste energy of heat from friction
Calculate the efficiency from the diagram - useful energy 10J and input energy 100J
10%
Calculate the potential energy if the mass of the object is 10kg, gravity is 10N and the height is 5m
500J
If a light bulb has the input energy of 100J and it produces 25J of heat, how much light energy is produced
75J
What object can transform light energy into electrical energy
Solar panel
What is the energy transformation when steam turns a turbine and the turbine generates electricity
Kinetic energy to electrical energy
At the top of the roller coater the carts have 50J, how much kinetic energy will they have when they reach the bottom
50J
At the top of the roller coaster the carts have
Gravitational Potential energy
Name five types of energy
Kinetic, light, sound, heat, electrical, gravitational, elastic, chemical or nuclear
When chemical energy is changed into light energy there is an energy
Transformation
When heat energy is changed into heat energy there is an energy
Transfer
State the Law of Conservation of Energy
Energy cannot be created or destroyed only transferred or transformed
The energy needed to ride a skateboard originally come from
The sun as radiant energy
1/2 x mass x velocity x velocity is the formula to calculate what type of energy
Kinetic Energy
mass x gravity x height is the formula to calculate what type of energy
Gravitational Potential Energy
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