Energy
Sound, light, heat, chemical reactions and moving objects are all examples of this
what is energy
this type of energy can be transferred from place to place by light, sound and this.
what is heat
when objects collide, they may make this sound
what is noise
when an object is moving faster what happens to the energy of the object?
the energy increases
a ball on top of a hill that is resting has this type of energy
what is potential energy
light energy changes to this type of energy in a solar oven
what is heat energy
when a larger object collides with another smaller object what happens to the energy?
what is energy is transferred from one object to another
when objects (of the same weight, size and energy) collide,
1) both objects will accelerate
2) there will be no effect
3) both objects stop instantly
what is both objects stop instantly
a ball rolling down a hill has this type of energy
what is kinetic energy
in a complete electrical circuit using a battery to power a clock, energy is converted from this type of energy to electrical energy
what is chemical energy
when one ball hits another one possible effect is this change in movement (different size and speed)
what is one or both objects might change direction
energy is shown by
1) moving objects energy is canceled the opposite force,
2) the two objects have no reaction or
3)the energy is transferred from one object to another
what is the energy is transferred from one object to another
an object that is going fast has more of this than a slow-moving object
what is energy
devices can be designed to do this with energy
1) destroy it
2) create it
3) or convert it from one form to another
what is convert energy from one form to another
when objects collide energy can be
1)transferred,
2) they may make a noise,
3)one or both objects may change directions, or
4) all of the above
what is all of the above
the faster an object is moving, the _____ it will stop
what is the quicker it will stop
Which is true about energy;
1) you can create it by rubbing your hands together,
2) you can destroy it by submerging it under water,
3) it cannot be created, or
4) it cannot be transferred.
What is " 3) energy cannot be created"
give an example of how energy can be transferred from one place to another through light, sound or electrical currents
a flashlight transfers from light to the bulb to illuminate the room, speaker transfers sound through the air to your ears, electrical currents transfer energy through wires to power a device
describe what happens to the energy when you kick a ball
energy is transferred from your foot to the ball
what happens to the energy when one ball hits another
energy is transferred, ball may slow, the kinetic energy moves from one to another, etc.