Living and non-living things need energy. True or false?
True
We (humans) need energy to......
Run, eat, dance, write, study, do the homework...
A bird flying has...........energy.
Kinetic
Batteries give us............energy.
Electrical
Digestion is a natural process that produces..............energy.
Chemical
The Sun produces............ and..........energy.
Light and thermal.
A person playing the piano produces..............energy.
Sound
A radiador has..........energy.
Thermal
Light travels VERY SLOWLY. True or flase?
False. It travels VERY FAST.
We CAN'T SEE through transparent materials. True or false?
False. We CAN SEE:
Light CAN'T TRAVEL through opaque materials. True or false?
True.
A FROSTED GLASS is an example of translucent material. True or false?
True.
What is the name of this phenomemon?
Reflection
What is the name of this phenomemon?
Refraction
Sound comes from vibrations. These vibrations produce..........that travel through ........., .......... and other materials.
Waves/ Air/ Water.
Lght travels FASTER than sound. True or false?
True
