Magnetic field/force basics

What does the following represent?
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗
⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

• Multiplied by a billion
• A piece of modern art
• Uniform magnetic field directed into the screen away from you
• Uniform magnetic field directed out of your screen at you

What is the direction of the current in the wire?

• up
• down
• left
• right

Using the right hand grip rule, A represents the direction of the

• current

• magnetic field

What is the direction of the force?

• into the page
• out of the page
• left
• right

A compass behaves as it does because each needle acts as a(n) ___________.

• Magnet
• Guide

Magnetic poles that are unlike ________and magnetic poles that are alike ___________.

• run; stay
• attract; repel
• stay; repel
• repel; attract

What is the direction of the force acting on the wire?

• into the page
• out of the page
• up the page
• none

What does the following represent?
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙

• A crowd with binoculars
• A bunch of coaxial cables 
• Uniform magnetic field directed into the screen away from you
• Uniform magnetic field directed out of your screen at you

Magnets can interact without touching.

• True
• False

Why are paper clips attracted to magnets?

• They contain silver.
• They contain aluminum
• They contain tin.
• They contain iron.