magnetic fields

Magnetic field lines are closet together at the __________.

• poles
• lines

Earth's magnetic poles are in the same place as the geographic poles.

• True
• False

The effects of a magnetic field can be observed using non-metal fillings.

• True 
• False

Tags

NGSS.MS-PS2-3

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

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The area of magnetic force around a magnet is known as its _____________.

• magnetic field

• magnetic declination

• magnetic fan lines

• magnetic tan lines

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

• calculator

• ruler

• compass

• map

Which way will the magnets move after they are released?

• Towards each other
• Away from each other
• Not enough information

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How can magnets cause objects to have kinetic energy?

• A magnetic force can convert kinetic energy stored in a magnetic field to potential energy.
• Kinetic energy can convert potential energy stored in a gravitational field.
• A magnetic energy can convert potential energy stored in a gravitational field to kinetic energy.
• A magnetic force can convert potential energy stored in a magnetic field to kinetic energy.

Tags

NGSS.HS-PS3-5

Are the magnetic field lines in the picture correct?

• Yes, because they point from north to south.

• No, because they point from north to south (they're supposed to go the other way).

• Yes, because the North pole is on the left in all pictures.

• No, because the North pole is on the left in all pictures (it's supposed to be on the right).

Tags

NGSS.MS-PS2-3

Looking at the field lines in this picture, these two magnets are ________

• Attracting

• Repelling

• Attracting and Repelling

• Doing nothing

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5