Free Printable Speed of Light Calculations and Electromagnetic Spectrum

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Speed of Light Calculations and Electromagnetic Spectrum

Total questions: 25

Worksheet time: 25mins

Name

Class

Date

The relationship between wavelength and frequency is λ=c/f. Calculate the wavelength of light that has a frequency of 5.2 x 10¹²1/s. The speed of of light is 3.0x 10⁸ m/s.

5.8 x 10 ^-5 m

5.8 x 10 ^-7 m

5.19 x 10 ¹⁴ m

1.56 x 10 ²³ m

Calculate the wavelength of light that has a frequency of 5.2 x 10^{12 1}/s.

5.8 x 10 ^-5 m

5.8 x 10 ^-7 m

5.19 x 10 ¹⁴ m

1.56 x 10 ²³ m

IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that measured infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of 1.10 X 10^-6 m?

3.67 x 10^-15 Hz

3.67 x 10^-3 Hz

2.73 x 10² Hz

2.73 x 10¹⁴ Hz

EM waves _______ travel the same speed in a vacuum.

never

sometimes

always

can

The speed of light is

30,000 km/s

300,000 km/s

30,000 mi/ s

300,000 m/s

Who performed the most famous experiment measuring the speed of light in 1880?

Isaac Newton

Albert Einstein

Albert Michelson

Niels Bohr

What was the approximate speed of light found by Michelson in his experiment?

299,920 km/s

300,000 km/s

299,792 km/s

186,000 miles/s

How is the speed of light calculated using the travel time and Earth's orbit distance?

speed of light = distance / time

speed of light = time / distance

speed of light = distance x time

speed of light = time x distance

In what year did Ole Roemer become the first person to measure the speed of light?

1610

1644

1676

1710

10.

Who was the first person to measure the speed of light?

Galileo Galilei

Isaac Newton

Ole Roemer

Christiaan Huygens

11.

EM waves ________ a medium.

require

don't require

can have

sometimes have

12.

Solve this problems using the equation:
C = λν
If an AM radio station broadcasts at
9.95 x 10⁵ Hz, what is the wavelength of this radiation?

6.59 x 10^-28 m

1.01 x 10^-6 m

3.32 x 10^-3 m

302 m

13.

A common infrared laser operates at 1.06 x 10³ nm. What is the energy of a photon with this wavelength? (1 x 10⁹ nm = 1m)

7.02 x 10^-40 J

6.25 x 10^-28 J

3.54 x 10^-15 J

1.87 x 10^-19 J

14.

The EM spectrum increases from left to right in________________.

Wavelength

Frequency

Amplitude

Height

15.

What is the speed of light in a vacuum?

$3.00 \times 10^8$ m/s

$3.00 \times 10^6$ m/s

$3.00 \times 10^5$ m/s

$3.00 \times 10^7$ m/s

16.

Which part of the electromagnetic spectrum has the shortest wavelength?

Radio waves

Microwaves

Gamma rays

Infrared

17.

Calculate the frequency of light with a wavelength of $600\ nm$ . (Speed of light = $3.00 \times 10^8$ m/s)

$5.00 \times 10^{14}$ Hz

$6.00 \times 10^{14}$ Hz

$7.00 \times 10^{14}$ Hz

$8.00 \times 10^{14}$ Hz

18.

What is the primary difference between X-rays and visible light?

Wavelength

Speed

Amplitude

Phase

19.

Which scientist is known for the theory of electromagnetic waves?

Isaac Newton

Albert Einstein

James Clerk Maxwell

Niels Bohr

20.

If a light wave has a frequency of $5 \times 10^{14}$ Hz, what is its wavelength? (Speed of light = $3.00 \times 10^8$ m/s)

$600\ nm$

$500\ nm$

$400\ nm$

$700\ nm$

21.

What is the unit of frequency in the electromagnetic spectrum?

Hertz

Meters

Seconds

Joules

22.

Which color of visible light has the highest frequency?

Red

Green

Blue

Violet

23.

What is the relationship between frequency and energy in the electromagnetic spectrum?

Directly proportional

Inversely proportional

No relation

Exponentially proportional

24.

Which of the following is not a type of electromagnetic radiation?

Ultraviolet

Infrared

Sound waves

Microwaves

25.

What is the wavelength of a radio wave with a frequency of $1 \times 10^6$ Hz? (Speed of light = $3.00 \times 10^8$ m/s)

$300\ m$

$30\ m$

$3\ m$

$3000\ m$

100 %

Speed of Light Calculations and Electromagnetic Spectrum

Total questions: 25

Worksheet time: 25mins

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