Chapter 20 Physical Science

What is the attraction or repulsion of electric charges?

• electric static

• electric field

• electric force

• electric magnet

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Opposite charges attract each other.

• True

• False

Tags

NGSS.MS-PS2-3

What devices prevent overheating?

• circuit breakers

• fuses

• both of these are correct

• none of these are correct

formula for energy

• Energy=Power X Time

• Energy=

  Power + Time

• Energy= Power/Time

• Energy=

  Power-Time

formula for power

• Power = Voltage/Current

• Power=Voltage X Current

• Voltage=Power X Current

• Power=

  Current/Voltage

What measures voltage?

• wattage reader

• barometer

• altimeter

• voltmeter

How many paths are there to take in a parallel circuit?

• none

• one

• two

• several

Which is not a feature of a circuit?

• circuits have devices that are run by electrical energy

• a circuit has a source of electrical energy

• circuits are always interrupted by the Olm principle

• circuits are connected by conducting wires

What says Resistance=Voltage/Current?

• Ohm's Law

• Tesla's Law

• Volta's Law

• Boyle's Law

Which is true?

• Batteries are only made of dry cells.

• Batteries are only made of wet cells.

• Batteries are not made of dry cells or wet cells.

• Batteries are made of dry cells and wet cells.