Waves
What are the two main types of waves?
Electromagnetic Waves
What type of charge does a Proton have? Electron?
Positive; Negative
What is an electric current?
What is a magnet?
an object that attracts iron and other materials that have magnetic qualities similar to iron.
Why do birds lay eggs in the spring?
So their young have plenty of time to grow and mature for them to fly south for the winter or survive the winter.
Name the two types of wave motions.
Transverse Waves
Longitudinal Waves
What causes a particle to be electrically neutral?
It has the same amount of Protons and Electrons.
What are the two types of electric currents?
Direct and Alternating.
What do all magnets have in common?
They have a North and South Pole.
Why can't Cub escape the backyard?
Closed circuit for our electric fence.
What does a higher amplitude mean?
More energy
What is a conductor? Also, give an example.
A material in which electric charges easily move.
Metals; copper.
What causes an electric circuit to be successful?
MUST BE CLOSED.
What is an example of a permanent magnet?
A hard magnet that stays magnetic when its not next to a magnet; Earth's crust
What are some good things that plastic can be used for?
Plastic homes, Islands that FLOAT!
What do waves transfer?
Energy
What is an insulator? Also, give an example.
A material in which electric charges cannot easily move.
Plastic, wood, and glass.
What are two types of electric circuits? EXPLAIN THEM.
*Remember our lab*
Parallel Circuit: A circuit with two different pathways from the power source. Two closed circuits.
One negative magnet pole would do what to another negative magnet pole?
Repel each other
Why do birds depend on magnets?
Birds migrate using the earth's magnetic field.
Water waves are what type of wave motion?
Combination Waves (Transverse AND Longitudinal)
The loss of an unbalanced electric charge.
Give an example of an energy source, electric device, and an electric conductor.
Energy source: battery, sun, wind
Electric device: light bulb, fan
electric conductor: wire
Why does a comb not attract a magnet.
Yes, its plastic, but what is/isn't occurring?
The comb atoms do not align and form magnetic fields.
True or False. All snowflakes have six sides?
True