What is the law of reflection?
Angle of incidence = angle of reflection
What is specular reflection?
where parallel rays all bounce off at the same angle
What is diffuse reflection?
incident ray is reflected at many angles, rather than at just one angle
Why does a thicker wire have a smaller resistance then a thin wire?
there is more space for the electrons to move through, reducing the likelihood of collisions and thus heat generation.
Where does an ammeter do in a circuit?
in series with the components
Where does a voltmeter do in a circuit?
In parallel across a component
Which direction do the magnetic field lines go in a bar magnet?
Out the north pole and into the south pole