physicsssss

a weight on the end of a spring bobs up and down over a distance of 1 m in 2 seconds. it's frequency is

.5 hz

A weight on the end of a spring bobs up and down one complete cycle every 2 seconds. Its frequency is

0.5 Hz

A certain ocean wave has a frequency of 0.05 Hz and a wavelength of 10 m. What is the wave's speed?

0.5 m/s

the period of an ocean wave is 10 seconds. what is the waves frequency

1 Hz

The frequency of the second hand on a clock is

1/60 hertz

A leaf on a pond oscillates up and down two complete cycles each second as a water wave passes. What is the wave's frequency?

2 hertz

The amplitude of a particular wave is 1 meter. The top-to-bottom distance of the disturbance is

2 m

two waves arrive at the same place at the same time exactly in step with each other. each wave has an amplitude of 1 m. the resulting wave has an amplitude of

2 m

a weight on the end of a spring bobs up and down one complete cycle every 2 seconds. it's period is

2 seconds

A cork floating in the ocean oscillates up and down two complete cycles in 1 second as an ocean wave passes by. The wave's wavelength is 10 meters. What is the wave's speed?

20 m/s

a skipper on a boat notices wave crests passing the anchor chain every 5 seconds. the skipper estimates the distance between the crests at 15 m. what is the speed of the water waves

3 m/s

radio waves travels at the speed of light, 300,000 km/s. the wavelength of a radio wave received at 100 megahertz is

3.0 m

a wave has two up and two down cycles each second. If the wave travels an average distance of 6 meters in 1 second its wavelength is

3m

A wave travels an average distance of 6 meters in one second. What is the wave's velocity?

6 m/s

Unlike a transverse wave, a longitudinal wave has no

A longitudinal wave has all of the above

what happens when an airplane is flying faster than the speed of sound

A shock wave is produced

When a sound source moves towards you, what happens to the wave speed?

It stays the same

hertz is a

Unit of frequency

Standing waves can be set up

all of the above

Some of a wave's energy is always being dissipated as heat. In time, this will reduce the wave's

amplitude

As the sound of a car's horn passes and recedes from you, the pitch of the horn seems to

decrease

Suppose a simple pendulum is suspended in an elevator. When the elevator is accelerating upward, the period of the pendulum

decreases

A wave on a rope whose motion is at right angles to the direction of wave propagation is a longitudinal wave

false

As a train sounding a horn goes away from you, both the sound speed and the pitch of the horn fall.

false

The distance between successive identical parts of a wave is its displacement

false

The number of times a wave vibrates each second is it's period

false

We hear a sonic boom just at the moment a supersonic plane flies directly overhead.

false

When the high part of one wave fills in the low part of another wave, constructive interference occurs.

false

the time for a complete to and fro swing of a pendulum is it frequency

false

the unit of the period of a wave is hertz

false

An observer on the ground hears a sonic boom that is created by an airplane flying at a speed

greater than the speed of sound

if you double the frequency of a vibrating object it's period

halves

Suppose a bug is jiggling up and down and swimming towards you at the same time. Compared to the frequency at which the bug is emitting waves, the frequency of the waves reaching you is

higher

A horse would be able to run faster if most of the mass in its legs were concentrated

in the upper part, nearer the horse's body

When two or more waves are at the same place at the same time, the resulting effect is called

interference

the sonic boom produced by an aircraft flying near the ground will be reduced if the aircraft

is smaller, flies higher, is more streamlined

a sonic boom

is swept continuously behind a plane flying faster than the speed of sound

Sound is an example of a

longitudinal wave

Where can you touch a standing wave on a rope without disturbing the wave?

node

During a single period, the distance traveled by a wave is

one wavelength

the time needed for a wave to make one complete cycle is it's

period

A child swings back and forth on a playground swing. If the child stands rather than sits, the time for a to-and-fro swing is

shortened

You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the waves

shortens

which of the following is not a transverse wave

sound

An aircraft that flies faster than the speed of sound is said to be

supersonic

the doppler effect is change in observed frequency due to

the motion of the source or observer

When a pendulum clock is taken from sea level to the top of a high mountain, it will

to lose time

The Doppler affect occurs when a source of sound moves

toward you, away from you

A wave created by shaking a rope up and down is called a

transverse wave

Galaxies show a red shift in their spectrums

true

Nodes in a standing wave normally remain stationary.

true

The amplitude of a wave is the vertical distance from the midpoint either the crest or trough of the wave

true

has a light source is coming towards you, you see light of a frequency higher than it really is

true

if you tie a rope to a wall and shake the free end up and down just right, the reflected wave will be in and out of phase with the incident wave at fixed places along the rope and can form a standing wave

true

sound waves are examples of longitudinal waves

true

The source of all wave motion is a

vibration

the distance between successive identical parts of a wave is called its

wavelength