Fast and Curious: Unit 8 Lesson 4, Lesson 5, and Lesson 6 (A)

Front

What is an Electromagnetic Wave?

Back

A wave consisting of changing electric and magnetic fields, that is emitted by vibrating electric charges and can travel through a vacuum.

Front

What is a Mechanical Wave?

Back

A wave that requires a medium through which to travel.

Front

What is Voltage?

Back

The amount of work to move a unit of electric charge between two points; expressed in volts.

Front

What is Amplitude?

Back

The maximum distance that the particles of a wave’s medium vibrate from their rest positions.

Front

What is Electric Current?

Back

The rate at which electric charges pass a given point.

Front

What is the relationship between Electromagnetic Waves and Mechanical Waves?

Back

Electromagnetic waves do not require a medium to travel, while mechanical waves do.

Front

What unit is used to measure Voltage?

Back

Volts.

Front

What does a higher Amplitude indicate about a wave?

Back

It indicates that the wave carries more energy.

Front

What is the formula for calculating Electric Current?

Back

Electric Current (I) = Voltage (V) / Resistance (R).

Front

What is the significance of Electric Charges in Electric Current?

Back

Electric charges are the carriers of electric current, moving through a conductor.