Physics P13 - em spectrum

What is the collective name for all types of EM radiation?

• Electromagnetic Spectrum

• Visible Light

• Radio Waves

• Infrared Radiation

What is the speed of light in m/s?

• The speed of light is approximately 299,792,458 m/s.

• The speed of light is approximately 150,000,000 m/s.

• The speed of light is approximately 300,000,000 m/s.

• The speed of light is approximately 299,000,000 m/s.

What is the distance from one wave crest to the next called?

• Wavelength

• Amplitude

• Frequency

• Velocity

What is the number of wave crests passing a fixed point every second called?

• Frequency

• Amplitude

• Wavelength

• Velocity

What are waves used to carry information by varying their amplitude called?

• Amplitude Modulation (AM) waves.

• Frequency Modulation (FM) waves.

• Phase Modulation (PM) waves.

• Pulse Code Modulation (PCM) waves.

What is high energy radiation that can remove electrons leaving ions called?

• Ionizing radiation

• Non-ionizing radiation

• Ultraviolet radiation

• Infrared radiation

What is a measure of the risk of harm resulting from exposure of the body to ionising radiation called?

• Sievert

• Curie

• Becquerel

• Gray

What type of waves are in the electromagnetic spectrum?

• Radio waves

• Sound waves

• Water waves

• Seismic waves

What can the human eye only detect in the electromagnetic spectrum?

• The human eye can only detect visible light in the electromagnetic spectrum.

• The human eye can only detect ultraviolet light in the electromagnetic spectrum.

• The human eye can only detect infrared light in the electromagnetic spectrum.

• The human eye can only detect X-rays in the electromagnetic spectrum.

What is the equation for wave speed?

• The equation for wave speed is given by the formula: wave speed (v) = frequency (f) × wavelength (λ).

• The equation for wave speed is given by the formula: wave speed (v) = mass (m) × acceleration (a).

• The equation for wave speed is given by the formula: wave speed (v) = force (F) / area (A).

• The equation for wave speed is given by the formula: wave speed (v) = energy (E) / time (t).