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# Physics

Pamela McGlynn

Lvl 10
2021-09-30 20:42:16
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Cards in this guide (20)
How do you pick up ants

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.

What type of wave is a water wave

mechanical wave

Which type of wave travels slower through gases than it does through solids

pressure waves

longitudinal waves

What is the reciprocal of frequency

The reciprocal of frequency is the time period of the wave

Which of the following distinguishes electromagnetic waves from mechanical waves

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

....what a wanker

Which of the following best describes a wave moving through a medium

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

If the period of a wave increases its frequency must

Increase decrease. The frequency MUST decrease.

The loudness of a sound is the wave's

amplitude

Why does the frequency of a siren get higher as an ambulance using that siren gets closer

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.

Which converts mechanical energy to electrical energy

a generator

The maximum displacement of a particle within a wave above or below its blank position is called amplitude

equilibrium

amplitude

Electric fields and magnetic fields often occur together

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

When a wave moves from a dense medium to a less dense medium most of the wave energy is

refracted

The pitch of a sound is determined by its and speed together or its frequency alone

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

Increase the strength of a copper electromagnet

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.

How does a sound wave for a high pitch sound differ to that of a low pitch sound

High pitch = high frequency = short wave

Low pitch = low frequency = long wave

Electric fields lines show the way charges would move if they were in a field

positive

How were slaves affected by the new republic

Some northern states made slavery against the law.

What are two kinds of fields that's make up an electromagnetic waves

Electric and Magnetic

Hertz (Hz) is the unit used to measure a wave's .

frequency

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