Electromagnetism

What is a coiled wire with electricity running through it called?

(a)  

What two forces make up the electromagnetic force?

• The nuclear strong force

• The magnetic force

• The static force

• The electrostatic force

Why can magnets attract certain metals?

• The metals attracted to the magnet are already magnets.

• The magnet aligns the metal's magnetic domains, making it permanently magnetic.

• The magnet aligns the metal's magnetic domains, making it temporarily magnetic

What is static electricity?

• The concept of electrons flowing from object to object.

• The concept of an imbalance of electrons and rapid electron movement.

• The concept of electron orbitals around a nucleus

• The concept of electrons being pulled away by magnetic fields and forming new atoms.

Which of these are an example of static electricity

• Plugging in your phone to charge it.

• Thunder after the lightning.

• Shocking yourself on escalators.

• Lightning.

What happens when an electric current flows through a wire?

• The wire begins to spin.

• Nothing happens.

• A field of gravity is created around the wire.

• A magnetic field is created around the wire.

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

Which of the following is a subatomic particle inside of a nucleus with two up quarks and one down quark, and an overall charge of +1

• neutron

• proton

• positron

• nucleon

What is an example of why electromagnets are better than normal magnets?

• They require multiple resources

• They can be turned on and off

• They need to be constructed

• They require an energy source

Generators are devices that convert _____ energy into _____ energy.

• chemical → mechanical

• mechanical → electrical

• electrical → mechanical

• potential → kinetic

What happens to the strength of an electromagnet if you add more coils around it?

• The strength of the electromagnet increases.

• The strength of the electromagnet decreases.

• The strength of the electromagnet stays the same.

• The electromagnet stops functioning.