Unit Test Review

A capacitor can act as a _________ in a circuit because it stores electrical energy.

• battery

• resistor

• lightbulb

• magnet

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What is TRUE about Electric Field A?

• positive sign and a weak electric field

• negative sign and weak electric field

• positive sign and a strong electric field

• negative sign and strong electric field

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What is TRUE about Electric Field B?

• positive sign and a weak electric field

• negative sign and weak electric field

• positive sign and a strong electric field

• negative sign and strong electric field

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

What is TRUE about Electric Field C?

• positive sign and a weak electric field

• negative sign and weak electric field

• positive sign and a strong electric field

• negative sign and strong electric field

Tags

NGSS.HS-PS3-5

NGSS.HS-PS2-5

Charge by Induction: A negatively charged rod is brought near (but does not touch) a neutral metal sphere. Electrons in the metal sphere are repelled away from the rod. 

What is the charge on the side of the sphere closest to the rod?

• neutral

• negative

• positive

• none of the above

Tags

NGSS.HS-PS3-5

______ have a negative charge, _____ have a positive charge, and ______ have a neutral charge.

• Electrons; protons; neutrons

• Protons; electrons; neutrons

• Neutrons; electrons; protons

• Electrons; neutrons; protons

Tags

NGSS.MS-PS1-1

Charge by Contact: A neutral metal sphere is touched by a negatively charged rod. What happens to the sphere after contact?

• The sphere becomes positively charged

• The sphere becomes negatively charged

• The sphere remains neutral

• The sphere becomes polarized but has no net charge

Opposite charges such as positive and negative _______

• attract

• repel

Tags

NGSS.HS-PS2-4

Like charges such as negative and negative _______

• attract

• repel

Tags

NGSS.HS-PS2-4

Two particles are acting upon each other. The charge of the first particle is -16.0 μC. The charge of the second particle is -8.0 μC.  The total magnitude of force either particle experiences is 112 N. What is the distance between the particles?

k = 8.99x10^9

• 0.10 m

• 0.21 m

• 0.63 m

• 0.44 m

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5