Energy Indicators
What are the 4 types of energy indicators?
sound, heat/ temperature change, motion, light
What are some natural sources of energy?
sun (solar)
wind
water (hydro)
Complete this claim:
The faster an object travels, _______________
the more energy it has
What is energy transfer?
when energy goes from one object to another
what is energy tranformation
when energy changes its form
the lights work, the smartboard is on, we hear the A/C and feel the warmth in the classroom, etc.
What object changes wind energy into electrical energy?
windmill
Complete this claim:
The slower an object travels, _____________
the less energy it has
What energy transfer happens in the windmill?
the motion energy of the blades goes to the generator then to the wires and then to the light
What energy transformation happens in the windmill?
the motion energy turns into electrical energy and then to light and heat energy
What are the energy indicators in a windmill?
motion of the blades and turns on a light
What object turns solar energy into heat and light energy?
solar panals
What would you need to do to the marble to increase the amount of energy and speed the marble has?
move the marble higher on the ramp to give it more energy and make it go faster
What energy transfer happened in the marble ramp?
the energy went from the marble to the catch
What energy transformation happened in the marble experiment?
the energy changed from motion energy to motion and sound energy
radio, speaker, tv, fan, vacuum
What is the purpose of a generator?
Generators are used to take motion energy and change it into electrical energy
think about generators during hurricanes that make your lights turn on or the generator that is inside of windmills
How do you know that an object has more energy and is faster than another object? How could you gather evidence?
I would time the speed of the object and compare it with another to see which is faster. We need evidence to support our answer and we could record the time/ speed of the objects to give us the data
What energy transfer happens when a golf club hits a golf ball?
energy from the club goes to the ball causing the ball to move
What energy transformation happens in a stove?
electrical energy turns into heat and light energy
What are some everyday objects that show heat/temperature change energy?
A/C, fridge, stove/ oven, dryer, hairdryer
What type of energy exists in a microwave?
Thermal energy and kinetic energy
Thermal energy is heat
kinetic energy is motion
When the marble and the catch collide, what happens to the energy? step by step
the energy of the marble moving is transferred to the catch at the moment of collision. this energy then causes the catch to slide across the floor. We see the catch move and hear the sliding sound on the floor.
What energy transfer happens in a radio?
the energy goes from the plug, to the wires, then to the radio and makes sound
Identify an example of when electrical energy turns into sound energy.
in a radio
in a blowdryer
in a tv