Physical Science: Electricity and Magnetism

Front

What is the formula to calculate voltage?

Back

Voltage (V) = Current (I) × Resistance (R) where V is in volts, I is in amps, and R is in ohms.

Front

What is the unit of resistance?

Back

The unit of resistance is ohms (Ω).

Front

What is static electricity?

Back

Static electricity is the accumulation of electric charge on the surface of objects, often caused by friction.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

What is the role of electrons in electricity?

Back

Electrons are negatively charged particles that flow through conductors to create electric current.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is a magnetic field?

Back

A magnetic field is a region around a magnet where magnetic forces can be observed.

Tags

NGSS.MS-PS2-5

Front

What is the direction of electric current?

Back

Electric current is defined as the flow of positive charge, which is from positive to negative.

Front

What happens to the resistance in a circuit if the length of the wire increases?

Back

The resistance increases as the length of the wire increases.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

Front

What is the relationship between voltage, current, and resistance?

Back

According to Ohm's Law, V = I × R, meaning voltage equals current times resistance.