Electricity and Magnetism Unit Review (Unit 4)

What is static electricity?

• Electricity that is stored up on the surface of a charged object.

• The flow of electrons through a circuit.

• Radio interference.

• The transfer of protons.

Tags

NGSS.MS-PS2-5

How does friction build up charges in objects?

• Electrons are forced off of the surface of one object and onto another when they are rubbed together.

• A charged object repels particles in a neutral object, separating its charges.

• Electrons transfer from one object to another by direct contact or a spark.

• Protons transfer from one object to another when they are rubbed together.

Tags

NGSS.MS-PS2-3

Rubbing a balloon on your friend's head charges the balloon through ___________

• Friction

• Conduction

• Induction

Getting shocked when you try to pet your cat is an example of ___________

• Friction

• Conduction

• Induction

If you hold a negatively charged pipe near a balloon, the balloon may become charged by ___________

• Friction

• Conduction

• Induction

Tags

NGSS.MS-PS2-5

What is static discharge?

• The process through which an object gains an electrical charge

• The process of differing charges equalizing

• The effect of charged objects attracting each other

• The area around a charged object where the effects of the charge can be felt

Tags

NGSS.MS-PS2-5

What happens inside of clouds to produce an electrical charge?

• Particles in the cloud collide and build up charges through friction

• Clouds become heavy and charge up

• Energy from the sun charges the clouds

• Thor swings his hammer

Tags

NGSS.MS-PS2-3

What causes charges on the ground to change leading up to a lightning strike?

• Negatively charged clouds cause charges in the ground to separate, making the surface positively charged.

• The ground is always positively charged

• The ground is always negatively charged

• Magic

Tags

NGSS.MS-PS2-3

____________ are the negatively charged particles that flow around a circuit.

• Electrons

• Protons

• Neutrons

• Positrons

What is current electricity?

• Electricity that is stored up on the surface of a charged object.

• The flow of electrons through a circuit.

• Radio interference.

• The transfer of protons.