Physics

A person can pick up ants in many ways. They can use tweezers to pick them up, they can use sticks or cloth to pick them up as well.

mechanical wave

pressure waves

longitudinal waves

The reciprocal of frequency is the time period of the wave

They don't require a medium to travel through. - apex

....what a wanker

The matter making up the medium does not move along with the wave

Increase decrease. The frequency MUST decrease.

amplitude

because you get closer to the sound

As the ambulance gets closer, the sound waves are compressed relative to the person; so the frequency increases.

a generator

equilibrium

amplitude

False, electric fields and magnetic fields do not often occur together.

refracted

The pitch of a sound can be determined by its frequency alone.

There are a couple of ways to increase the strength of a copper electromagnet. You could increase the current going through the wire or wrap more wire around it which increases the strength exponentially. You could also put in a soft iron core such as a nail which in essence becomes a magnet and increases the strength of the magnet.

High pitch = high frequency = short wave

Low pitch = low frequency = long wave

positive

Some northern states made slavery against the law.

Electric and Magnetic

frequency