Electric./Mag. Vocab
Magnets do this to iron.
What is attract?
This is the dark area that forms when light is blocked.
What is a shadow?
This is how high or low a sound is.
What is pitch?
This is an object that heat can move through easily.
What is a conductor?
Why do wires need to be covered in rubber or plastic.
They are insulators that keep the electricity from getting out.
This is an electric charge that builds up on an object.
What is static electricity?
This is light bouncing off an object.
What is a reflection?
This is a reflection of sound.
What is an echo?
This is the measure of how hot or cold something is.
What is temperature?
Why do things sticking out of the water appear to be broken in two pieces?
This electricity moves through a wire.
What is current electricity?
This is an object that allows almost SOME light to pass through.
What is translucent?
This is a quick back and forth movement.
What is a vibration?
Heat always moves this way.
What is from hot to cold?
What is the circle the electricity needs to flow through?
It needs to flow through a closed circuit. If you open the circuit, the electricity will stop.
This is something that allows electricity to move through easily.
What is a conductor?
This is an object that blocks all light.
What is opaque?
This is the amount of energy a sound has.
What is loudness or volume?
This is heat moved by two objects touching.
What is conduction?
Why do things appear backwards in a mirror?
The light reflects straight back. You see things on your left on the left side of the mirror, the same as the right, and up and down.
This is a machine that uses a magnet to produce electricity.
What is a generator?
What is absorption?
This is why a thinner string has a higher sound than a thicker, fatter one.
What is it vibrates faster?
What is thermal energy?
What things are needed to make an electromagnet and how do you make one?
You need a piece of iron, a coil of wire, and a source of electricity like a battery. You wrap the coil around the iron and turn on the electricity. When it is on, the magnet is on, and it turns off when you turn off the electricity.