Electric & Magnetic Interactions

Front

What is a transformer?

Back

A device that transfers electrical energy between two or more circuits through electromagnetic induction.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is the primary voltage in a transformer?

Back

The voltage applied to the primary coil of a transformer.

Front

What is the secondary voltage in a transformer?

Back

The voltage induced in the secondary coil of a transformer.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is the formula for calculating the voltage in a transformer?

Back

Vs/Vp = Ns/Np, where Vs is secondary voltage, Vp is primary voltage, Ns is number of turns in secondary coil, and Np is number of turns in primary coil.

Front

What role does moving water play in electricity generation?

Back

It provides energy to turn the armatures in generators.

Tags

NGSS.HS-PS3-3

Front

What is an electric motor?

Back

A device that converts electrical energy into mechanical energy.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Front

What is a generator?

Back

A device that converts mechanical energy into electrical energy.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Front

What are brushes in electric motors and generators?

Back

Conductive materials that transfer electrical current between stationary and moving parts.

Tags

NGSS.HS-PS3-5

Front

What is the difference between AC and DC?

Back

DC flows in one direction only, while AC's direction constantly reverses.

Front

What is an armature in a generator?

Back

The rotating part of a generator that produces electricity.

Tags

NGSS.HS-PS2-5