NGSS.MS-PS2-5

A hypothesis is often tested with a controlled _______

• experiment 
• observation 
• theory
• law 

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NGSS.MS-PS2-5

What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

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NGSS.MS-PS2-5

Magnets can interact without touching.

• True
• False

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NGSS.MS-PS2-5

Each non-contact force has an area of influence surrounding it.  What is this area called?

• gravitational attraction
• influence center
• field 
• attraction 

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NGSS.MS-PS2-5

The buildup of charges on an object.

• Electromagnet
• Static electricity
• Resistance

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NGSS.MS-PS2-5

Stephan claims that Earth has both a gravitational field and a magnetic field. Which statement best supports his claim?

• Any object will fall to the ground.

• A bar magnet will fall to the ground.

• Any object will fall to the ground, and a compass can be used for navigation.

• A compass points in the direction of both the magnetic and gravitational fields.

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NGSS.MS-PS2-5

Magnetic lines of force from Earth's polar north and south; they act like a giant magnet- known as...

• the magnetosphere

• Earth's Magnetic Field

• the Magna Doodle

• the magnetic poles

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Earth has a magnetic field that is similar to a bar magnet's magnetic field.

• true

• false

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NGSS.MS-PS2-5

How can you test to see if there is a current running through a wire?

• listen carefully to see if you hear a buzzing sound

• place several compasses around the wire

• place several batteries around the wire

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NGSS.MS-PS2-5

Which of the following is the most appropriate definition for magnetic field?

• an area surrounding a magnet that does not apply a force (a push or pull)

• an area directly on the magnet that applies a force (a push or pull) without actually touching an object

• an area of magnetism surrounding a magnet that applies a force (a push or pull) without actually touching an object

• an area surrounding a magnet that applies a force (a push or pull), but only by directly touching an object

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NGSS.MS-PS2-5