Unit 8 Light Review

Convert this number to standard notation: 7.1 x 10⁴

(a)  

Convert this number into scientific notation: 0.068

• 6.9 x 10⁶

• 6.8 x 10^-9

• 6.8 x 10^-2

• None of the above

Change from standard form to scientific notation: 12,000,000

• 12.0  x  10⁷
• 0.12  x  10⁷
• 1.2  x  10⁶
• 1.2  x  10⁷

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

Which type of waves are used in broadcasting?

• radio waves
• infrared rays
• x-rays

Which of the following has frequencies higher than ultraviolet rays?

• visible light
• infrared rays
• x-rays

Which of the following has the most energy?

• Red

• Blue

• Green

• Yellow

Which of the following has the most energy?

• X-rays

• The color green

• Microwaves

• Infrared

Which travels fastest in a vacuum?

• Red Light

• Xrays

• Gamma Rays

• All the same

Put the visible light colors in order from longest wavelength to shortest wavelength

• Violet, Blue, Green, Orange, Yellow, Red
• Red, Yellow, Green, Orange, Violet, Blue
• Red, Orange, Yellow, Green, Blue, Violet
• Blue, Violet, Green, Yellow, Orange, Red