Which statement best describes how coal provides energy when burned?

chemical energy is released as thermal energy

Kinetic energy is released as potential energy

mechanical energy is released as electrical energy

Electrical energy is released as chemical energy

Which is an example of managing renewable resources

using wind turbines to generate electricity

capturing carbon pollution while producing gasoline

making coal a cleaner energy source

Which statement correctly compares Samples 2 and Samples 4?

Each sample is made of a specific type of cell, and each type of cell performs different functions in an organism.

EAch sample performs its own specific functions, but they have different levels of organization.

both samples perform the same functions, and they have the same level of organization.

Both samples are made of the same type of cell, and the cells perform the same functions in an organism

Which statement is correct about Sample 5 and Sample 2?

Sample 5 caries out all its life functions in one cell, whereas sample 2 is a specialized group of cells.

Sample 5 is eukaryotic cell, where as sample 2 consists of prokaryotic cells

Sample 5 depends on another energy source, but sample 2 can create its own energy.

Sample 5 can change shape to perform specific functions, but sample 2 remains the same shape.

Based on this table, Sample 5 and Sample 6 have-

all different classifications below phylum

different phylum classifications but the same class and order

different phylum classifications but belong to the same genus

all the same classifications below phylum

A diode is a semiconductor that is used to

allow current to flow only in one direction

turn the flow of electricity on and off

Visually impaired people often use a cane to help detect objects. Advanced canes for visually impaired people use echolocation. This allows the user to detect objects on the ground and above the waist. A device is attached to the handle of the cane and includes a battery, an ultrasound source, and an ultrasound detector. When the echo indicates an object is detected in front of the user, the handle of the cane vibrates, alerting the user than an object is ahead. This cane uses the same principle of echolocation used by dolphins. When an advanced cane sends out a wave, energy is transferred from-

chemical energy in the battery to mechanical energy in the sound wave

nuclear energy in the bater to sound energy in the air

sound energy in the air to chemical energy int he battery

kinetic energy due to moving the cane to potential energy in the battery

Visually impaired people often use a cane to help detect objects. Advanced canes for visually impaired people use echolocation. This allows the user to detect objects on the ground and above the waist. A device is attached to the handle of the cane and includes a battery, an ultrasound source, and an ultrasound detector. When the echo indicates an object is detected in front of the user, the handle of the cane vibrates, alerting the user than an object is ahead. This cane uses the same principle of echolocation used by dolphins. Which statement correctly describes the characteristics of the waves used by advanced canes and dolphins

the higher the pitch, the higher the frequency

the higher the pitch, the higher the amplitude

the lower the pitch, the lower the amplitude

the lower the pitch the short4er the wavelength

Dolphins send out sound waves that can extend into the ultrasound range. Ultrasound waves have a pitch higher than humans can hear, and these waves help the dolphin determine how far way various objects are, including prey. The waves used both advanced canes and dolphins are examples of-

longitudinal waves that travel fastest in steel

compression waves that travel fastest in air

transverse waves that travel fastest in water

mechanical waves that travel fastest in plastic

Mock SOL

Authored by David Tuck

Science

6th - 8th Grade

PS covered

Used 5+ times

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44 questions

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OPEN ENDED QUESTION

3 mins • 1 pt

Which of the following green elements are nonmetals

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PS.4b

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which Season is the earth in 1?

Spring

Summer

Fall

Winter

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NGSS.MS-ESS1-1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which Season is the earth in 1?

Spring

Summer

Fall

Winter

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6.8.g

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which Season is the earth in 2?

Spring

Summer

Fall

Winter

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6.8.g

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which Season is the earth in 3?

Spring

Summer

Fall

Winter

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6.8.g

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which Season is the earth in 4?

Spring

Summer

Fall

Winter

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6.8.g

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which two process do the arrows 1 and 2 represent?

1: absorption and convection

1: absorption and 2: reflection

1: conduction and 2: reflection

1: conduction and 2: covection

Tags

6.3.a

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Mock SOL

Which of the following green elements are nonmetals

Which Season is the earth in 1?

Which Season is the earth in 1?

Which Season is the earth in 2?

Which Season is the earth in 3?

Which Season is the earth in 4?

Which two process do the arrows 1 and 2 represent?

Which statement best describes how coal provides energy when burned?

Which is an example of managing renewable resources

Identify all parts of a typical animal cell ​ ​

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Identify all parts of a typical animal cell