Segment 1 Practice Test

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Test your current knowledge of Segment 1 concepts!
Read each question below and select the best answer choice.

Good luck!

Name (First & Last) *

Your friend is bragging about his motorcycle. He claims that it can go from a stopped position to 50 miles per hour in three seconds. He is describing the motorcycle's: *

1 point

speed

acceleration

velocity

direction

A storm is moving in quickly. The weather station reported that it is traveling west at 40 miles per hour. This information describes the storm's: *

1 point

speed

velocity

acceleration

direction

Which is the best example of Newton's Second Law of Motion? *

1 point

A student has on roller skates and she decides to push against the railing. She immediately begins to roll backwards.

A small, lightweight ball and a large, heavy ball are dropped off of a roof. They both strike the ground at the same time.

A baseball player hits a baseball that is pitched to him. The ball immediately soars back in the direction of the pitcher.

ou are riding in a car that makes a quick right turn. You immediately slide across the back seat.

Which is the best example of Newton's Third Law of Motion? *

1 point

A hockey puck sliding on the ice will keep going until it is hit by another player or hits the wall.

It takes more force to move a large tractor trailer than it does to move a small sports car.

A swimmer who jumps off a raft moves forward through the air, and the raft moves backwards through the water.

You are riding in a car that makes a quick right turn. You immediately slide across the back seat.

Gravity is greater when there is: *

1 point

more mass and less distance between two objects

less mass and less distance between two objects

more mass and more distance between objects

equal mass and more distance between two objects

To determine power, we need to know the: *

1 point

energy required and the time it takes

amount of work and the distance covered

amount of work in a given time

distance and time it takes to do work

If we increase the force applied to an object, and all other factors remain the same, the amount of work will: *

1 point

decrease

remain unchanged

increase

decrease, then increase

Which of the following has potential energy? *

1 point

A rock positioned on the edge of a high cliff

A ball rolling across the ground

A bus driving down the road

A person eating lunch

After Sophie eats, her body breaks down the food to use as an energy source when she runs. This is an example of which type of energy conversion? *

1 point

Chemical to mechanical

Mechanical to thermal

Thermal to chemical

Thermal to mechanical

Which statement best describes the difference between strong nuclear forces and weak nuclear forces? *

1 point

Weak nuclear forces hold protons and neutrons together; strong nuclear forces hold electrons in their shells

Strong nuclear forces are responsible for holding electrons in bonds; weak nuclear forces are involved when the bonds break.

Weak nuclear forces hold atoms together; strong nuclear forces tear them apart.

Strong nuclear forces are responsible for holding atoms together; weak nuclear forces are involved when certain types of atoms break down.

When compared to strong nuclear force, gravitational force is: *

1 point

weaker; it is related to mass

stronger; it is related to charge

weaker; it is related to charge

stronger; it is related to mass

Sam is walking through the park. He hears a police car siren moving on the street coming toward him. What happens to the siren sound as it approaches and then passes Sam? *

1 point

As the siren approaches Sam, the frequency of sound waves from the siren increase. As the police car continues past Sam, the sound waves decrease in frequency.

As the police car approaches Sam, sound waves from the siren remain constant. As the car continues past Sam, the sound waves decrease in frequency.

As the police car approaches Sam, the frequency of sound waves from the siren decrease. As the car continues past Sam, the sound waves increase in frequency

As the police car approaches Sam, the frequency of the sounds waves from the siren increases and continues to increase as the car passes and moves away from Sam.

What are the characteristics of low energy waves? *

1 point

Long wavelengths and low frequencies

Short wavelengths and high frequencies

High frequencies and long wavelengths

Low frequencies and short wavelengths

An observer notes that the pitch of a sound is becoming progressively higher. The observer can conclude that the sound is moving: *

1 point

away and the frequency of the sound wave is increasing

away and the frequency of the sound wave is decreasing

closer and the frequency of the sound wave is decreasing

closer and the frequency of the sound wave is increasing

Which statement about how light travels is true? *

1 point

Light waves can travel in a vacuum and travel at a constant speed even if the light source is moving.

Light waves need a medium to travel, and they travel at the same speed even if the light source is moving.

Light waves can travel in a vacuum and will travel faster if the light source is moving forward.

Light waves need a medium to travel, and they travel faster if the light source is moving forward.

Which statement best represents scientific laws? *

1 point

Scientific laws are statements that contain scientists' opinions of how the world works.

Scientific laws are factual statements that explain why certain natural phenomena occur.

Scientific laws are theories that have been tested, proven, and adopted as laws.

Scientific laws are descriptions of observed phenomenon generally accepted as facts.

Select the statement that is true regarding scientific theories. *

1 point

Scientific theories are what laws are called before they are proven.

Scientific theories attempt to explain why natural events occur.

Scientific theories are based on facts.

Scientific theories describe natural events.

In order to be considered science, something must be: *

1 point

testable and obvious

believable and trustworthy

testable and observable

functional and observable

Which of the following could be considered a scientific statement? *

1 point

Jim stated, "the moon is made of rock."

Nancy stated, "I have observed that butterflies visit orange flowers more often than other flowers."

William stated, "chocolate is the best ice cream flavor."

William believes that chocolate is the best ice cream flavor.

Which statement is the best example of pseudoscience? *

1 point

Scientists have observed many constellations in our universe.

Mary thinks her astrological sign, Leo, is a perfect fit for her personality.

Satellites found in space record images of events that take place on the Earth.

The employees at the observatory use telescopes to study the stars.

Select the sentence that best describes why copper and some other metals are good conductors. *

1 point

Copper atoms have loosely held electrons; this means they can freely move in and out of the nucleus of the atom.

Copper atoms have a loosely held free electron in their outer shell that is able to move freely to other atoms.

Copper and some other metals have highly active inner shells. This means that electrons can be freely exchanged between shells.

Copper has a small number of electrons; this means it can easily shed these electrons and take electrons from other atoms.

Which statement best describes plastics' ability to conduct electricity? *

1 point

They are good insulators because their atoms have a single loosely bound electron in the outer shell that can move freely between other atoms.

They are good insulators because they have electrons that are tightly bound in their shells which makes them unable to move between other atoms.

They are poor insulators because the electrons in the atom are tightly bound and unable to move between other atoms.

They are poor insulators because the electrons are able to move freely between the different energy levels within the atom.

You are asked to explain the relationship between current and voltage. Select the statement that would be an accurate reply. *

1 point

Voltage is the force that resists the flow of electricity; if we increase the voltage, and do not change the resistance, we will decrease the current.

Voltage is the force that drives electric current. When we increase the voltage, and do not change the resistance, we have an increase in current.

Voltage is how much current passes a point in a given time. If we want to increase the voltage, we would need to increase the current.

Voltage describes the amount that a material resists the flow of electrons. If we want to increase the voltage we need to increase the resistance.

Select the statement that shows the correct relationship between current, voltage, and power. *

1 point

A decrease in power will occur if current is increased and voltage remains the same.

An increase in voltage, with no change in current, will result in an increase in power.

In order to increase power, there must be a decrease in either current or voltage.

The only way to decrease current is to decrease power.

When comparing two circuits, you note that circuit one has twice the resistance and half the voltage of circuit two. This means that: *

1 point

both circuits will have the same current

both circuits will have alternating current

circuit two will have more current

circuit one will have more current

Which statement best describes the relationship between metals and magnets? *

1 point

All metals are attracted to magnets because they are able to create their own magnetic field.

All metals are attracted by magnets; this is why we call metals ferromagnetic.

Magnets do not have a magnetic field so only some metals are attracted to them.

Only some metals are attracted by magnets; these metals are called ferromagnetic.

Which statement correctly describes magnetism? *

1 point

Metals can become magnetic if they have many spinning electrons that create magnetic fields.

Metals are magnets because they have more electrons than non–magnetic materials.

Non–paired electrons spin in opposite directions creating an imbalance that creates a magnetic field.

The electrons in some metals pair up to create a magnetic field.

When discussing the Earth's magnetic field we could say that the Earth has a: *

1 point

geomagnetic north pole that is similar to the north pole of a magnet

geomagnetic north pole that is similar to the south pole of a magnet

magnetic core that has a charge similar to the south pole of a magnet

random collection of magnetic poles dispersed in different locations

If you sit outside and get a sunburn, what type of electromagnetic waves are to blame? *

1 point

X–rays

Microwaves

Infrared light

Ultraviolet light

Which of the following best describes the use of a renewable resource? *

1 point

Most power plants burn fossil fuels to generate electricity for use in homes and offices.

Natural gas is extracted from deep in the Earth and piped to customers to use for cooking.

Water falls through openings in a dam turning turbine blades that generate electricity.

We use gasoline to power our cars to get to work and school each day.

Some towns have decided to bury their garbage to get rid of it. What is one harmful effect of this practice? *

1 point

An increase in human population

It increases available farmland

Carbon monoxide is absorbed by landfills

Decaying waste releases methane gas, a greenhouse gas

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