Science 7 Q3 Review 5

Which of the following is NOT TRUE about sound waves

• Sound waves are mechanical waves.

• Sound waves are sinusoidal waves.

• Sound waves are electromagnetic waves.

• Sound waves are longitudinal waves

Sound travels fastest in __________.

• solids

• liquids

• gases

• vacuum

High-pitch sounds corresponds to a high-frequency sound waves. 

• True

• False

Light travels in a ______________.

• crooked path

• straight path

• wavy path

• bending path

If an object blocks the path of light, what will be formed?

• corpuscle

• photon

• shadow

• intensity

Which part of the electromagnetic spectrum can be detected by human eyes?

• Gamma rays

• Visible light

• Radio waves

• Ultraviolet rays

Which electormagnetic wave has the longest wavelength?

• Gamma Rays

• X Rays

• Microwave

• Radio Waves

The shorter the wavelength, the higher the frequency and energy of a wave.

• True

• False

Which visible light has the highest frequency?

• Red

• Orange

• Indigo

• Violet

Which visible light has the lowest frequency?

• Red

• Orange

• Yellow

• Violet