SLA Unit 3 Noncontact Forces

Which term related to electromagnetism applies only to electric force?

• Charge

• Repulsion

• Noncontact

• Attraction

Which term related to electromagnetism applies only to magnetic force?

• Poles

• Noncontact

• Protons

• Attraction

Which two conditions would result in the strongest electric force between charged objects?

• Objects are far apart.

• 
  Objects are insulators with unbalanced charges.

• Objects are close together.

• 
  Objects are conductors with balanced charges.

Tags

NGSS.MS-PS2-3

Which two conditions would result in the weakest electric force between objects?

• Objects are far apart.

• 
  Objects are insulators with balanced charges.

• Objects are close together.

• 
  Objects are conductors with balanced charges.

Tags

NGSS.MS-PS2-3

The direction of force of Earth's magnetic field is from the geographic South Pole to the geographic North Pole. Where is Earth's magnetic north pole?

• Near Earth's equator

• Near Earth's North Pole

• Near Earth's South Pole

Which statement best describes the direction of force shown by the magnetic field lines around a bar magnet?

• Away from both the magnet's north and south poles

• From the magnet's north pole to its south pole

• From the magnet's south pole to its north pole

The diagram shows an electric generator containing an electromagnet.

When the generator is working, what is in the wire?

• Permanent magnet

• Electric Current

• Chemical energy

• Small Batteries

Tags

NGSS.MS-PS2-3

Which statement describes how a generator works?

• It transforms electrical energy into mechanical energy.

• It uses motion of a wire coil in a magnetic field to produce electricity.

• It uses an electric current in a magnetic field to produce motion.

• It transforms wire wrapped around a nail into a battery.

Which statement describes how a generator works?

• It transforms electrical energy into mechanical energy.

• It uses an electric current in a magnetic field to produce motion.

• It uses motion of a wire coil in a magnetic field to produce electricity

• 
  It transforms wire wrapped around a nail into a battery.

Tags

NGSS.MS-PS3-5

What type of particles does the electromagnetic force act on?

• Only neutral particles

• Only charged particles

• Only light particles

• Only heavy particles

Tags

NGSS.MS-PS2-3