Science 10 Second Quarter Exam

What is the primary component of an electromagnetic (EM) wave?

• Electric field only

• Magnetic field only

• Electric and magnetic fields

• Matter

Which of the following EM waves has the longest wavelength?

• Gamma rays

• X-rays

• Radio waves

• Visible light

Which of the following is a common use of microwaves?

• X-ray imaging

• GPS

• Microwave ovens

• Sunburn treatment

Which part of the electromagnetic spectrum can humans see?

• Radio waves

• Microwaves

• Visible light

• Infrared

What unit is used to measure the frequency of an electromagnetic wave?

• Hertz (Hz)

• Meters

• Joules

• Nanometers

Which of the following waves is used in medical imaging?

• Gamma rays

• X-rays

• Radio waves

• Microwaves

Which wave is primarily responsible for causing sunburn?

• Visible light

• Radio waves

• Infrared radiation

• Ultraviolet (UV) radiation

What is the relationship between the frequency and energy of an EM wave?

• Directly proportional

• Inversely proportional

• Unrelated

• Frequency has no effect on energy

What do infrared (IR) waves primarily help detect?

• Light

• Temperature variations

• Sound waves

• Radio signals

Which type of radiation is used in thermal imaging?

• Microwaves

• Infrared (IR)

• X-rays

• Gamma rays