Practice Log 11-2 Makeup

If two charges repel each other, the two charges must be

• Positive and neutra
• Positive and negative
• positive and neutral
• negative and negative

Tags

NGSS.HS-PS2-4

An object becomes charged when the atoms in the object gain or lose

• electrons
• protons
• neutrons
• all of the above

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that

• friction destroyed electrons in the rod.
• the silk has become negatively charged.
• protons have moved to the rod.
• glass attracts more protons.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

If you bring a charged object near an electrically neutral surface without allowing the object to touch the surface, the charges in the surface are rearranged by

• friction.
• convection.
• induction.
• conduction.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Charging by ____ occurs when electrons are transferred from one object to another by direct contact.

• reduction
• induction
• conduction
• friction

When you pull a cotton sweater off your skin, electrons are transferred from the ___________________ (cotton, skin) to the __________________ (cotton, skin). As a result, your body acquires a ___________ (+ , -) charge and the cotton sweater acquires a ___________ (+ , -) charge.

• skin, cotton, +, -
• cotton, skin, +, -
• skin , cotton, -, +
• cotton, skin, -, +

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Which ranking is correct?

• A < B
• J < H < I
• F < G < E
• D < C

Tags

NGSS.HS-PS2-1

Which part of Coulomb's Law is always squared?

• distance
• charge
• Coulomb's constant
• force

Tags

NGSS.HS-PS2-4

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

Materials which can conduct electricity better than insulator,but not as well as conductors. This is the definition of

• diode

• semiconductor

• conductor

• insulator

• superconductor