NST term 3 Flashcards
what is energy?
energy is what makes things happen, move or change.
why do we need energy?
to LIVE and for EVERYTHING we do
what do living things use energy for?
to grow, breath, move and feed
what is a source of energy?
something that we get energy from
where does the energy in our food come from?
from the SUN.
plants use the sun’s energy to make their own food; some of that food is stored in their bodies. plants then provide food for animals and people.
how does your body get energy?
food (from plants and animals) is the source of energy for your body. energy is stored in food.
food is broken down so that we can use the energy
what is an omnivore?
animals that eat meat (other animals) and plants
what is a carnivore?
animals that only eat meat (other animals)
what is a herbivore?
animals that only eat plants
what is the transfer of energy
the process by which energy goes from one part of a food chain to anther
or changes from one type of energy to another
what is a system
something that has 2 or more parts working together to make something happen
what is the output energy?
the energy that comes out of a system
what input energy does an electrical appliance use?
electricity from batteries or mains electricity
what are percussion instruments?
musical instruments that make sound by striking/beating, scraping or shaking
what are string instruments
musical instruments that make sound with strings
what are wind instruments
instrument that you play by blowing air into
what does vibrate mean?
to move backwards and forwards with small and fast movement
what does unique mean
it is different to any thing else
what is a sinew ?
a thick band of strong material in your body that joins a bone to a muscle
name 4 types of energy
sound, light, heat and movement energy
what sources of energy do humans use that were stored in plants/animals long ago?
wood, coal, crude oil, natural gas
what is input energy?
the energy that goes into a system to make it work
what type of energy do most musical energy use?
movement energy - vibrations caused by blowing, hitting, shaking , plucking
what does indigenous mean?
Something is indigenous to a place was designed, made and used in that place
