Light Energy
What kind of energy helps us see things?
Light energy.
What causes sound
Vibrations
What energy comes from the sun and warms us
Heat energy
electrical energy
When you ride a bike, what two types of energy are being used?
Motion (mechanical) energy and heat energy (from your muscles working).
What happens to a shadow when the light moves closer to an object
It gets bigger
when you pluck a rubber band what makes the sound
The vibrating rubber band
If you touch something warm, what kind of energy do you feel
heat energy
what do you need to make electrical energy work
a circuit
When you turn on a TV, what types of energy are being changed?
Electrical energy changes into light energy and sound energy.
Name one source of light energy
sun, flashlight,lamp, fire
What happens when you tighten a rubber band
The sound gets higher
why does ice melt in the sun
the suns heat energy melts it
what kind of energy makes a fan spin when its plugged in
Electrical energy
What kind of energy makes popcorn pop in a microwave?
Heat energy (and a little sound energy from popping)
True or false: light can bend around corners
false
True or false: sound can travel through air,water,and solids
true
True or false: heat always moves from cold to hot
false:it moves from hot to cold
Name one thing that runs on electrical energy
tv, computer, lamp
When you see lightning and hear thunder, what two types of energy are you experiencing?
Light energy (lightning) and sound energy (thunder).
Why can't we see objects in a completely dark room, even if they're right in front of us
There's no light reflecting off the objects into our eyes
Why does sound travel faster through metal than through air
Because the particles in metal are packed closer together, allowing vibrations to move faster
Why do metal spoons get hot faster than wooden spoons when placed in a pot of soup
Metal is a better conductor of heat than wood
What happens to a circuit if one part of it is broken
The circuit is open, so electrical energy stops flowing
Why does your phone need to be charged?
It needs electrical energy to work.