B - Waves and Tides TEST

Last updated almost 3 years ago

30 questions

1

4

1

Library

B - Waves and Tides TEST

Last updated almost 3 years ago

30 questions

Instructions: Select the best answer for each question.

1

4

Draggable item		Corresponding Item

1

Instructions: Select the best answer for each question.

In a diurnal tide, time from high tide to high tide averages 6 hours and 12.5 minutes.

True

False

An ocean wave is an energy transmission that moves water along with the energy.

True

False

Galveston has spilling breakers along its beaches.

True

False

Ebb currents are incoming tide flow. Flood currents are outgoing tide flow.

True

False

Restoring forces create waves, and disturbing forces destroy waves.

True

False

White caps are the white part of a wave when the wave breaks on a beach or obstacle.

True

False

What type of wave is created as energy travels through water?

Radical

Orbital

Longitudinal

Wave speed is equal to...

Wavelength divided by height.

Wavelength divided by period.

Height divided by wavelength.

Which of the following are disturbing forces?

Coriolis effect

Wind

A and B

Which of the following are restoring forces?

Coriolis effect

Surface tension

All of them

If a wave has a wavelength of 60 meters, height of 30 meters, and a period of 6 seconds, what is the speed/velocity of the wave? Think carefully!

20 m/sec

10 m/sec

0.5 m/sec

Factors that can affect the maximum size of a wave include

Wind Speed

Duration

All of them

What factors are needed to get a fully developed sea?

Maximum size waves can have a high wind speed, short duration and a large fetch.

Maximum size waves can have a high wind speed, long duration and a large fetch.

None of these will create a fully developed sea.

Fully developed seas can have waves that are bigger than maximum theoretical size.

They are called rogue waves and form from constructive interference.

They are called tides and form from constructive interference.

None of these are true; there can be no waves larger than those in a fully developed sea.

When a wave breaks on the shore...

The crest is travelling more quickly than the trough

The crest collapses due to gravity.

All of these are true.

A tsunami wave...

has a speed of up to 600mph

speeds up as it approaches shallow water.

increases in height as it approaches shallow water

A and C

Tsunamis cause...

Massive flooding

Loss of life

All of the above

A tsunami can be formed by

Earthquakes/Tectonic Plate movements

Landslides/explosions

Volcanic activity

All of the above

Deep waves are ______ in shape with a motion. Shallow waves are _ in shape with a ________ motion.

Pointed, circular; round, ellipse

Round, circular; pointed, ellipse

Pointed, ellipse, round, circular

Which statement is False about Tsunamis?

Tsunamis are more likely to occur in the Pacific Ocean.

No tsunamis occur near the “Ring of Fire”.

International tsunami detection systems are found in many locations in the ocean.

Tsunamis don't destroy ships in the open sea because...

wave height in the deep ocean is very low - about 3 feet.

they don’t move through the sea.

none of the above. Tsunamis frequently destroy ships on the open sea.

Tides are caused by...

the Coriolis effect.

primarily the moon’s gravity, with some effect from the sun.

the sun’s gravity only.

A single high and low tide daily is called a tide. Two unequal high and low tides daily is called a tide.

DInural, Semidiurnal

Diurnal, mixed

Mixed, diurnal

During tides the sun and moon align relative to Earth. During tides, they are at right angles to Earth.

Neap, Spring

Spring, Summer

Spring, Neap

Summer, Neap

Spring tides are different than neap tides because spring tides ____

have high tides that are higher and low tides are lower.

have very little change between high and low tide

occur during full and new moon

Wave breakers crash onto the beach. Which type of breaker is the most dangerous?

Surging

Spilling

Plunging

Why does a wave break?

The crest continues to move fast and eventually over runs the trough

The wave falls over due to gravity.

All of the above

Match the label to the correct part of the wave.

Draggable item		Corresponding Item
B		Wavelength
C		Wave Height
D		Trough
A		Crest

Which part of the tsunami wave reaches the shore first?

Trough

Altitude 

Orbital 

Arrange the sequence of the event that leads to tsunami.

Waves slow down to about 45 mph due to bottom friction but there is still a huge amount of energy so it piles up and the wave increases in height up to 50 feet As the top crest of the wave moves faster than the bottom trough, the waves increases in height and break, smashing onto land with an enormous amount of energy pretty much destroying everything in its path
Disturbance that sends out a huge wave of energy into the water
Water recedes near the disturbance and waves with wavelengths up to several hundred miles long spread in all directions

In a diurnal tide, time from high tide to high tide averages 6 hours and 12.5 minutes.

True

False

An ocean wave is an energy transmission that moves water along with the energy.

True

False

Galveston has spilling breakers along its beaches.

True

False

Ebb currents are incoming tide flow. Flood currents are outgoing tide flow.

True

False

Restoring forces create waves, and disturbing forces destroy waves.

True

False

White caps are the white part of a wave when the wave breaks on a beach or obstacle.

True

False

What type of wave is created as energy travels through water?

Radical

Orbital

Longitudinal

Wave speed is equal to...

Wavelength divided by height.

Wavelength divided by period.

Height divided by wavelength.

Which of the following are disturbing forces?

Coriolis effect

Wind

A and B

Which of the following are restoring forces?

Coriolis effect

Surface tension

All of them

If a wave has a wavelength of 60 meters, height of 30 meters, and a period of 6 seconds, what is the speed/velocity of the wave? Think carefully!

20 m/sec

10 m/sec

0.5 m/sec

Factors that can affect the maximum size of a wave include

Wind Speed

Duration

All of them

What factors are needed to get a fully developed sea?

Maximum size waves can have a high wind speed, short duration and a large fetch.

Maximum size waves can have a high wind speed, long duration and a large fetch.

None of these will create a fully developed sea.

Fully developed seas can have waves that are bigger than maximum theoretical size.

They are called rogue waves and form from constructive interference.

They are called tides and form from constructive interference.

None of these are true; there can be no waves larger than those in a fully developed sea.

When a wave breaks on the shore...

The crest is travelling more quickly than the trough

The crest collapses due to gravity.

All of these are true.

A tsunami wave...

has a speed of up to 600mph

speeds up as it approaches shallow water.

increases in height as it approaches shallow water

A and C

Tsunamis cause...

Massive flooding

Loss of life

All of the above

A tsunami can be formed by

Earthquakes/Tectonic Plate movements

Landslides/explosions

Volcanic activity

All of the above

Deep waves are __________ in shape with a ________ motion. Shallow waves are _________ in shape with a ____________ motion.

Pointed, circular; round, ellipse

Round, circular; pointed, ellipse

Pointed, ellipse, round, circular

Which statement is False about Tsunamis?

Tsunamis are more likely to occur in the Pacific Ocean.

No tsunamis occur near the “Ring of Fire”.

International tsunami detection systems are found in many locations in the ocean.

Tsunamis don't destroy ships in the open sea because...

wave height in the deep ocean is very low - about 3 feet.

they don’t move through the sea.

none of the above. Tsunamis frequently destroy ships on the open sea.

Tides are caused by...

the Coriolis effect.

primarily the moon’s gravity, with some effect from the sun.

the sun’s gravity only.

A single high and low tide daily is called a ____ tide. Two unequal high and low tides daily is called a ____ tide.

DInural, Semidiurnal

Diurnal, mixed

Mixed, diurnal

During ____ tides the sun and moon align relative to Earth. During ____ tides, they are at right angles to Earth.

Neap, Spring

Spring, Summer

Spring, Neap

Summer, Neap

Spring tides are different than neap tides because spring tides ____

have high tides that are higher and low tides are lower.

have very little change between high and low tide

occur during full and new moon

Wave breakers crash onto the beach. Which type of breaker is the most dangerous?

Surging

Spilling

Plunging

Why does a wave break?

The crest continues to move fast and eventually over runs the trough

The wave falls over due to gravity.

All of the above

Match the label to the correct part of the wave.

B

Wavelength

C

Wave Height

D

Trough

A

Crest

Which part of the tsunami wave reaches the shore first?

Trough

Altitude 

Orbital 

Arrange the sequence of the event that leads to tsunami. 

Waves slow down to about 45 mph due to bottom friction but there is still a huge amount of energy so it piles up and the wave increases in height up to 50 feet  As the top crest of the wave moves faster than the bottom trough, the waves increases in height and break, smashing onto land with an enormous amount of energy pretty much destroying everything in its path

Disturbance that sends out a huge wave of energy into the water

Water recedes near the disturbance and waves with wavelengths up to several hundred miles long spread in all directions