S2 Waves and Electricity

What is produced when objects vibrate?

• Light

• Sound

• Heat

• Electricity

What is the speed at which sound travels?

• 300 m/s

• 320 m/s

• 340 m/s

• 360 m/s

What is the range of human hearing?

• 10-10,000 Hz

• 20-20,000 Hz

• 30-30,000 Hz

• 40-40,000 Hz

What are the three stages of electronic systems?

• Input-Process-Output

• Start-Middle-End

• Begin-Execute-Finish

• Load-Run-Stop

Which formula is used to calculate resistance?

• V = IR

• P = IV

• F = ma

What is the definition of a sound wave?

• A wave caused by the vibration of particles.

• The top of a wave.

• The bottom of a wave.

• The height of the wave from the center point.

What does the term 'frequency' refer to?

• The number of waves produced per second.

• The length of one wave.

• How loud a sound is.

• The speed of a wave.

What is the top of a wave called?

• Crest

• Trough

• Amplitude

• Wavelength

What is the unit of measurement for current in a circuit?

• Amps

• Volts

• Ohms

• Hertz

What does an ammeter measure?

• Current

• Voltage

• Resistance

• Wavelength