Unit 5 Review-7th grade

You can see print on paper from any angle because...

• Paper refracts light

• The smoothness allows for light to reflect

• The reflections from paper are scattered

The flower appears blue in sunlight. Blue, green, red, yellow, and other colors make up sunlight.

Which color is reflected?

• White

• Black

• Blue

• The rainbow

Water can...

• Absorb light

• Reflect light

• Refract light

• All of the above

What causes the refraction of a light wave?

• The color of the medium changes the speed.

• The light enters a different medium and it changes speed.

• The amount of the medium changes the direction.

• The type of wave changes the direction.

Which of the following is an example of an electromagnetic wave?

• gravitational pull

• ocean waves

• sound

• infrared

Tags

NGSS.MS-PS4-2

Which form of electromagnetic radiation has more energy than visible light waves?

• microwaves

• radio waves

• infrared

• ultraviolet waves

Electromagnetic waves are classified by their wavelength and frequency. Which of the four electromagnetic waves listed below would have the highest frequency?

• microwave

• x-ray

• ultraviolet

• radio

Tags

NGSS.HS-PS4-1

Which of the following statements is true about the energy of electromagnetic waves with the longest wavelengths?

• longer wavelengths transfer more energy

• longer wavelengths transfer less energy

• longer wavelengths carry no measurable energy

• longer wavelengths transfer the same amount of energy as shorter wavelengths

Tags

NGSS.HS-PS4-1

Which type of electromagnetic radiation is felt as heat?

• ultraviolet

• infrared

• microwaves

• radio waves

Which statement below accurately describes how the energies of infrared, visible light and ultraviolet light are related?

• Visible light contains the most energy and ultraviolet contains the least.

• Infrared contains the least energy and ultraviolet contains the most energy.

• Infrared contains the most energy and ultraviolet contains the least energy.

• Visible light contains the least energy and infrared contains the most.

Tags

NGSS.HS-PS4-4