Energy Basics
Energy Basics 2.0
Kinetic Energy
Potential Energy
Energy Transformations
Energy Transformations 2.0
Conservation of Energy
100
The energy an object has due to its motion.
What is kinetic energy?
100
Energy stored in an object due to its position.
What is potential energy?
100
The kinetic energy of a 2 kg ball moving 3 m/s.
What is 9 J?
100
The gravitational potential energy of a 5 kg object lifted to a height of 4 m.
What is 196 J?
100
The energy supplied to a system.
What is input energy?
100
The useful energy produced by a system.
What is output energy?
100
The Law of Conservation of Energy.
What is energy cannot be created or destroyed, but can change forms?
200
The sum of potential and kinetic energy.
What is mechanical energy?
200
Energy stored in food or fuel.
What is chemical energy?
200
The kinetic energy of a 54 kg object moving 15 m/s.
What is 6,075 J?
200
The gravitational potential energy of a 75 kg object lifted to a height of 5 m.
What is 3,675 J?
200
Energy produced by a system, but not used for the intended purpose of the system.
What is wasted output energy/
200
The input and output energy of a toaster.
What is electrical and heat?
200
The point on this pendulum where potential energy would be the least.
What is B?
300
The energy stored in an object when it is stretched or compressed.
What is elastic potential energy?
300
Energy of particles moving through a wire.
What is electrical energy?
300
The reason a stationary object has 0 kinetic energy.
What is the lack of motion, as kinetic energy depends on motion/
300
The two factors (other than gravity) that affect an object's gravitational potential energy.
What are mass and height?
300
Two most common forms of wasted output energy.
What are heat and sound?
300
The input and output energy in an electric lamp.
What is electrical and light energy?
300
The point on this pendulum where the values of potential and kinetic energy would be the closest.
What is C?
400
The magnitude of acceleration due to gravity.
What is 9.8 m/s?
400
Energy of electromagnetic waves, such as UV or X-rays.
What is radiant energy?
400
The mass of an object with 4,500 J of kinetic energy moving at a rate of 5 m/s.
What is 360 kg?
400
How potential energy changes as an object falls.
What is decreases as it is converted to kinetic energy?
400
The reason a bouncing ball does not always return to its original height.
What is energy lost due to friction and air resistance?
400
The input and output energy of photosynthesis.
What is light and chemical energy?
400
This can be said about the mechanical energy of a pendulum if friction and air resistance are not taken into consideration.
What is remaining constant?
500
The formula for Gravitational Potential Energy.
G.P.E. = m x g x h
500
The formula for kinetic energy.
What is 0.5mv2?
500
The velocity of a 10 kg object with a kinetic energy of 950 J.
What is 13.78 m/s?
500
The mass of an object dropped from 9 m with a potential energy of 700 J.
What is 7.93 kg?
500
The input, output, and wasted output energy of a person ringing a bell.
What is chemical, sound, and mechanical/kinetic?
500
The energy transformations occurring in a hand-cranked flashlight.
What is mechanical - electrical - heat/light?
500
The reason it is highly unlikely for a machine to have 100% efficiency.
What is due to the loss of energy to factors such as friction and air resistance?