Physics Practice Quiz

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You are creating a circuit using copper wire, a battery, and a light bulb. If the light bulb is lit, what kind of circuit do you have?

1 point

Closed

Open

Not enough information

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What causes Earth's magnetic field?

1 point

Magnetic energy from the Sun is blown to Earth by solar winds and forms a protective shield

Currents generated by the movement of molten iron in Earth's core

Magnetic materials on the surface of Earth send out smaller magnetic fields which combine to form one large magnetic field around Earth

Charged particles in Earth's atmosphere move to form the North and South poles

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What is electricity?

1 point

The flow of ions (charged atoms) between two materials

The flow of electrons from one atom to another

The force generated between a positively charged pole and a negatively charged pole

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If the blue ends of the magnets are lined up end-to-end, what will happen?

1 point

The magnets will attract each other

The magnets will repel each other

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Which variable(s) will affect the number of swings a pendulum makes in a ten second interval?

1 point

The angle of release

The length of the pendulum's string

The mass of the weight on the end of the pendulum

2 of the options are correct

All of the options are correct

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Which metals can become magnetized? (Choose all that apply)

1 point

Cobalt

Nickel

Iron

Copper

Aluminum

Which of the following are examples of potential energy? Check all that apply

1 point

A roller coaster at the top of a hill

A fired bullet

A coiled spring

A ball that somebody throws

An arrow pulled back in a bow

A car on the interstate

Which of the following is true about Earth's magnetic field?

1 point

It protects the planet from powerful solar wind

It's magnetism attracts the needle on a compass for navigation

It is generated by the movement of molten metal inside Earth's core

All of the above

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All metals are magnetic.

1 point

True

False

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Which is the best explanation for how the circuits in a house are wired?

1 point

They are series circuits because multiple lights can be turned on with one light switch

They are open circuits because switches can be turned on and off

They are closed circuits because electricity can flow through them

They are parallel circuits because if one light burns out, the other lights will still work

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What causes an aurora?

1 point

Earth's magnetic field attracts and repels charged gases in the atmosphere which causes them to light up the sky

The interaction of charged solar gases and gases in Earth's atmosphere

The moving currents generated by Earth's iron core interact with charged particles in the atmosphere

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There are two types of swings on the playground. Rachel is 10 years old and she uses the regular swings (left). Her baby sister, Lauren, is 2 years old and she uses the baby swings (right). Whose swing will swing faster and why?

1 point

Rachel (regular swing) because she can pump her legs more, increasing the angle of release and speeding up her swing.

Rachel (regular swing) because her swing has longer chains.

Lauren (baby swing) because she weights less so she can reach a higher angle of release on her swing.

Lauren (baby swing) because her swing has shorter chains.

Lauren (baby swing) because she weighs less so there is less air resistance and she swings faster.

Rachel (regular swing) because she weighs more so her weight will pull the swing faster.

Clear selection

If the bottom light bulb burns out, will the top light bulb still work?

1 point

Yes, the top light bulb will still work

No, the top light bulb will not work

Not enough information to answer

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