Answers FL-2002040-MJ Comprehensive Science 1 CRLab: Absorption and Radiation by Land and Water

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Which describes bedrock?

consists of solid rock

lies directly above the soil layer

does not contain weathered rock

forms from decomposed material

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Which describes an object’s speed when free falling in a vacuum?

The object accelerates until it reaches its terminal velocity.

The object falls at a constant speed because only one force acts on it.

The object falls faster and faster until it strikes the ground.

The object speeds up and then stops when air resistance equals gravity.

How are the electric field lines around a positive charge affected when a second positive charge is near it?

The field lines combine with the lines around the second positive charge.

The field lines overlap with the lines from the second positive charge.

The field lines bend toward the second positive charge.

The field lines bend away from the second positive charge.

Which event can cause slumps, landslides, and mudflows to occur?

earthquakes

hurricanes

snowfalls

thunderstorms

Which organisms release carbon dioxide as waste?

consumers only

consumers and decomposers

producers and decomposers

producers only

Sara was caught in a thunderstorm while outdoors. She immediately makes sure that she is not near any tall structures or trees. What is Sara most likely trying to avoid?

being struck by lightning

being hit by thunder

being caught by falling hail

being carried away by strong winds

Otis is making a poster about how to preserve sand along the beach. Which of the following suggestions should Otis include on his poster?

Build a seawall near the coastline.

Put sandbags along the coastline.

Build a fence along the coastline.

Plant more grass near the coastline.

A positively charged object is placed to the left of a negatively charged object. Which best describes how the positively charged object will move?

to the left, in the direction of the electric field lines

to the right, in the direction of the electric field lines

up in the direction that the field lines bend away

down in the direction that the field lines bend away

A scientist on Earth drops a hammer and a feather at the same time an astronaut on the moon drops a hammer and a feather.

The hammer hits the ground before the feather on both Earth and the moon.

The hammer hits the ground before the feather on Earth, but the feather hits the ground first on the moon.

The hammer and the feather hit the ground together on both Earth and the moon.

The hammer hits the ground before the feather on Earth, and the hammer and feather hit at the same time on the moon.

Which is an example of potential energy?

a swimmer kicking their legs

a car driving on the road

an arrow flying at a target

a yo-yo in someone’s hand

The diagram illustrates the water cycle.

The information in the table represents the effect of the mass of two objects on the gravitational force between the two objects.Which number should be in the cell with the question mark?

The number is two because when you double the mass of one of the objects, the force between the objects is halved.

The number is four because when you double the mass of one of the objects, the force between the objects remains the same.

The number is eight because when you double the mass of one of the objects, the force between the objects also doubles.

The number is sixteen because when you double the mass of one of the objects, the force between the objects increases by a factor of 4.

Which process involves wind moving loose sediment?

abrasion

deflation

impact

plucking

How do oxbow lakes form?

Rivers are dammed, and the water builds up, creating a lake.

Runoff pools in areas of low elevation, creating a temporary lake.

Rivers wear away banks until the bank is broken and the river flows straight.

Glaciers leave deep channels in the ground, which fill with water and become a lake.

Which best defines energy?

a type of wave that carries energy through space, where there is almost no matter

a disturbance that carries energy form one place to another through matter and space

the ability to do work

pressing to make more compact

Doug is doing work. Without knowing exactly what he is doing, which can be said about the work he is doing?

Energy is transferred.

Energy is increased.

Energy is decreased.

Energy is unchanged.

Which best explains why a thick tropical forest filled with large plants typically has a lot of water vapor in the air?

The plants undergo transpiration.

The plants undergo condensation.

The plants prevent water from evaporating.

The plants prevent water from becoming runoff.

The diagram shows two charged objects, A and B.

A: positiveB: negative

A: negativeB: positive

A: negativeB: negative

A: positiveB: positive

A tugboat is pulling a barge into a harbor. The barge is exerting a force of 3000 N against the tugboat.Which force would most likely allow the tugboat to move the barge into the harbor?

4500 N in the opposite direction of the barge

3000 N in the opposite direction of the barge

3000 N in the same direction of the barge

4500 N in the same direction of the barge

A small, jagged particle with a density of 1.2 g/cm3 deposits on the ground before a large, round particle with a density of 0.82 g/cm3.Which most likely influences the rate of deposition of the jagged particle?

large size

low density

high density

irregular shape

Ryan is examining the energy of the particles in a bar of gold. What is Ryan most likely studying?

thermal energy

electric energy

potential energy

internal energy

The north pole of a bar magnet is moved close to the north pole of a second bar magnet. What prediction best describes how the first magnet responds when it is released?

It will move toward the second magnet because like poles repel.

It will move toward the second magnet because like poles attract.

It will move away from the second magnet because like poles repel.

It will move away from the second magnet because like poles attract.

Katie rolls a toy car off the end of a table.Which path will the car follow when it leaves the table?

Which is an important safety measure that should be taken during a hurricane?

Move away from windows.

Seek shelter in a ditch or low-lying area.

Go to the lowest level of the building.

Lie on the floor and cover your head.

Which major type of air mass forms over warm water?

maritime polar

continental polar

maritime tropical

continental tropical

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