Electricity and DC Circuits Quiz

Matter experiences a force in an electromagnetic field due to its __________.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

The flow of electric charge per unit time is known as __________, and it is measured in __________.

• current，amperes

• Voltage, volt

• Resistance, ohms

• Power, watt

The resistance of an LDR __________ when the light intensity decreases.

The work done per coulomb to move charge between two points in a circuit is called _____ ____ and is measured in __________（复数）.

The rate at which energy is transferred in a circuit can be calculated using the formula __________.

Tags

NGSS.HS-PS2-5

A material's __________ indicates how difficult it is for current to flow through it.

The __________ of a material depends on its resistance, cross-sectional area, and __________.

A __________ is a semiconductor whose resistance __________ when the temperature increases.

The principle of conservation of__________ states that the total charge in a system remains constant.

The principle that energy cannot be created or __________, only transferred into different forms.

Tags

NGSS.HS-PS3-2